Author Topic: PSLV-XL C57 - Aditya-L1 - SLP - September 2, 2023 - 0620UTC  (Read 22819 times)

Offline zubenelgenubi

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This is the launch thread for Aditya-L1, both updates and discussion.

We also have the Aditya-L1 Solar Observation Mission mission thread in the Space Science sub-forum.

Aditya-L1

Cross-posts:
http://www.isro.gov.in/aditya-l1-first-indian-mission-to-study-sun
Quote
Aditya - L1 First Indian mission to study the Sun

The Aditya-1 mission was conceived as a 400kg class satellite carrying one payload, the Visible Emission Line Coronagraph (VELC) and was planned to launch in a 800 km low earth orbit.  A Satellite placed in the halo orbit around the Lagrangian point 1 (L1) of the Sun-Earth system has the major advantage of continuously viewing the Sun without any occultation/eclipses.  Therefore, the Aditya-1 mission has now been revised to “Aditya-L1 mission” and will be inserted in a halo orbit around the L1, which is 1.5 million km from the Earth.  The satellite carries additional six payloads with enhanced science scope and objectives.

The project is approved and the satellite will be launched during 2019 – 2020 timeframe by PSLV-XL from Sriharikota.
<snip>

Director, SDSC SHAR, press meet [15 Aug 2022]:
[YouTube link]
<snip>
Missions planned for next year:
PSLV C55 - Commercial launch
PSLV C56 - Aditya-L1
GSLV Mk3 - OneWeb
GLSV Mk3 - Chandrayaan 3 (based on readiness)

https://www.sakshi.com/telugu-news/andhra-pradesh/isro-and-nasa-likely-launch-aditya-l1-satellite-study-sun-1480174 [22 Aug 2022]
Google translated from Telugu:
Quote
ISRO has intensified its arrangements to launch Aditya L1 satellite by PSLV-C56 rocket from Sriharikota in January 2023. SHAR Director Armugam Rajarajan revealed this to the media.

Perhaps five Indian orbital launches before the end of the Indian fiscal year March 31, 2023:
[YouTube link]
Oceansat-3: end of November;
The 2nd OneWeb cluster launch: January or February, LVM3 M3;
The 2nd SSLV launch;
GSLV (MkII) NavIC satellite, apparently IRNSS-1J (1st of 5 2nd generation NavIC satellites ordered, which matches the circumstances of 1J);
Perhaps Aditya-L1.

Quote from: Sidharth MP tweet
Chandrayaan-3, we will have this year end or next year beginning..discussions underway about the next #mars mission..now we’re going to the Sun- Aditya-L1 by June-July..mission to asteroid, to Venus are at discussion level as I understand” Umamaheswaran, #isro HSFC Director [Jan 28]

[ISRO Director S Somnath]
<snip>
Next launches are GSLV, PSLV and LVM-3. Three major missions in next few months.
« Last Edit: 09/02/2023 10:04 am by Galactic Penguin SST »
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Offline zubenelgenubi

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Re: PSLV-XL C56 - Aditya-L1 - July 2023
« Reply #2 on: 05/08/2023 06:01 pm »
To expand...
https://www.hindustantimes.com/india-news/isro-to-launch-chandrayaan-3-and-aditya-l1-india-s-moon-and-sun-missions-in-july-official-confirms-development-101683397788585.html
[May 7 IST]
Quote
The space agency is aiming to launch Chandrayaan-3 in July, followed by Aditya-L1, an Isro official aware of the project development said. “We are completing all tests and hoping we will be able to stick to schedule,” the official said, seeking anonymity.

https://www.dnaindia.com/science/report-chandrayaan-3-isro-s-moon-mission-to-be-launched-in-july-know-all-about-new-aditya-l1-first-mission-to-sun-3040773
[May 7 IST]
Quote
Aditya L1 is a planned coronagraphy spacecraft to study the solar atmosphere and is a first-of-its-kind mission set to be carried out by ISRO, just after Chandrayaan 3 in July 2023.
« Last Edit: 05/08/2023 06:04 pm by zubenelgenubi »
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Offline zubenelgenubi

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Re: PSLV-XL C56 - Aditya-L1 - FLP - July 2023
« Reply #3 on: 05/29/2023 08:57 am »
Aditya-L1 launch NET mid July.  Or NET late July?  How quickly in succession can two overlapping launch campaigns, using both SLP and FLP, be accomplished?
Quote from: ISRO Spaceflight tweet
WE HAVE A LAUNCH DATE!
On 12th July 2023, a GSLV Mk-III rocket will lift off from the Sriharikota launching the Chandrayaan-3 spacecraft which will then attempt a soft touchdown near the Lunar South Pole on 23rd August! 🇮🇳 #ISRO [May 21]

And, this is the next PSLV launch:
ISRO Chairman wrapping up. Next GSLV launch is INSAT-3DS. Same rocket with NISAR. Coming months with PSLV, GSLV Mk.III, Gaganyan.
« Last Edit: 05/29/2023 09:00 am by zubenelgenubi »
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Re: PSLV-XL C56 - Aditya-L1 - FLP - July 2023
« Reply #4 on: 05/29/2023 06:04 pm »
Coming months with PSLV, GSLV Mk.III, Gaganyan.

This should be the Aditya satellite, going up on the PSLV. Interesting though, that they are not being specific. We are left to guess a bit!

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Re: PSLV-XL C56 - Aditya-L1 - FLP - July 2023
« Reply #5 on: 05/31/2023 08:05 am »
Now targeted for August/September

Quote
Crowded July-Aug for ISRO with Chandrayaan-3 ,PSLV, Gaganyaan abort missions; Aditya-L1 aimed for Aug-Sept

May 23, 2023

[...]

Soon after this, the space agency is aiming to launch Aditya-L1, India’s first solar observatory mission, in the August-September window.

[...]

So far as Aditya-L1 goes, the space agency has made significant progress and is confident of meeting the August-September window, not adhering to which could see the mission slip to the next calendar year.

[...]

Lukas C. H. • Hobbyist Mission Patch Artist 🎨 • Ad Astra Per Aspera ✨️

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Re: PSLV-XL C56 - Aditya-L1 - FLP - August/September 2023
« Reply #6 on: 06/08/2023 05:33 pm »
https://economictimes.indiatimes.com/news/science/primary-objective-is-a-sure-shot-safe-mission-not-in-a-hurry-to-launch-gaganyaan-asserts-isro-chief/articleshow/100855089.cms?from=mdr

Quote
About India's first solar mission, Aditya-L1, Somanath said the launch window is August this year to January next year.

"If we cannot launch it in August then we will go to next year January," he added.

Offline zubenelgenubi

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Re: PSLV-XL C56 - Aditya-L1 - FLP - August 2023
« Reply #7 on: 06/08/2023 11:35 pm »
Two August FLP launches?
https://economictimes.indiatimes.com/news/science/primary-objective-is-a-sure-shot-safe-mission-not-in-a-hurry-to-launch-gaganyaan-asserts-isro-chief/articleshow/100855089.cms?from=mdr [June 8]
Looks like TV-D1 is now moved to August...
Quote
According to Somanath, the first exercise will probably happen in August, which was earlier planned in July.
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Re: PSLV-XL C56 - Aditya-L1 - FLP - August 2023
« Reply #8 on: 06/16/2023 04:47 pm »
https://indianexpress.com/article/cities/pune/unique-space-telescope-designed-pune-scientists-sun-mission-8667571/ [June 16, 2023]

Quote
The Solar Ultraviolet Imaging Telescope (SUIT), a unique space telescope developed by Pune’s Inter-University Center for Astronomy and Astrophysics (IUCAA), is now ready and has been delivered to the Indian Space Research Organisation (ISRO). The telescope is set to be integrated with the ADITYA-L1 mission, expected to be launched in mid-August this year.

Quote
“We had to build an ultra-clean room apart from ensuring that there will be no contamination from the particles scattered by the Sun on the payload. Special filters had to be designed to pick up the radiation,”

Quote
“SUIT, for the first time, will allow us to record images in this wavelength crucial for maintaining the Ozone and Oxygen content in the atmosphere of the Earth. SUIT will also measure the UV radiation hazardous for skin cancer.”

Quote
The SUIT project involved over 200-300 scientists over the last ten years. In addition to the initial grant of Rs 25 crore from ISRO for the hardware, scientists faced several challenges during the development of the payload, including building an ultra-clean room and designing special filters to capture the radiation.

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Re: PSLV-XL C56 - Aditya-L1 - FLP - mid August 2023
« Reply #9 on: 06/17/2023 03:45 pm »
 Online Event: Celebrating the handing over SUIT payload to ISRO [Jun 16, 2023]


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Re: PSLV-XL C57? - Aditya-L1 - FLP - 10 August 2023
« Reply #10 on: 06/28/2023 04:02 pm »
https://timesofindia.indiatimes.com/home/science/chandrayaan-3-launch-scheduled-for-july-13-isro/articleshow/101342875.cms?from=mdr [Jun 28, 2023]

Quote
On Aditya-L1 Mission, India's first mission to study the Sun, the Isro chief said they were targeting a launch date of August 10.
« Last Edit: 07/03/2023 02:43 am by zubenelgenubi »

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Re: PSLV-XL C57? - Aditya-L1 - FLP - end of August 2023
« Reply #11 on: 06/29/2023 06:03 pm »
https://timesofindia.indiatimes.com/home/science/artemis-deal-a-political-engagement-isro-chief/articleshow/101350934.cms?from=mdr [Jun 29, 2023]

Quote
On the Aditya L1 solar mission, the Isro chairman said, “We are targeting that by August-end, Aditya can go.”

« Last Edit: 07/03/2023 02:44 am by zubenelgenubi »

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Re: PSLV-XL C57? - Aditya-L1 - FLP - end of August 2023
« Reply #12 on: 07/02/2023 05:49 pm »
https://timesofindia.indiatimes.com/city/bengaluru/aditya-l1-additional-payload-tests-recommended-launch-by-aug-end/articleshow/101426804.cms [Jul 2, 2023]

Quote
Bengaluru: India’s first solar mission, Aditya-L1, is expected to be launched only by the end of August, while work on payload integration and testing has begun and the PSLV rocket is being readied for the launch.

Quote
Isro Chairman S Somanath told STOI: “We are expecting to launch Aditya by the end of August. Currently, payload integration and testing is going on.”

Quote
“We have to also add some additional payload tests to gain confidence. Some extended testing has been recommended on the payload side. All payloads have reached us, the PSLV [which will launch Aditya-L1] is already getting ready for an end of August launch,” Somanath said.
« Last Edit: 07/03/2023 02:44 am by zubenelgenubi »

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Re: PSLV-XL C57? - Aditya-L1 - FLP - end of August 2023
« Reply #13 on: 07/13/2023 03:05 am »
https://www.newindianexpress.com/states/tamil-nadu/2023/jul/13/isros-first-mission-to-sun-aditya-l1-may-take-off-in-august-2594319.html

Quote
ISRO sources told TNIE that Aditya-L1 is tentatively scheduled for August 26 while the Vikram lander onboard Chandrayaan-3 will attempt soft landing on the moon around August 23-24. Officials said currently the final phase of Aditya-L1 payload integration and testing is underway. This will be India’s first mission to study the sun.


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Re: PSLV-XL C57? - Aditya-L1 - FLP - 26 August 2023
« Reply #14 on: 07/13/2023 10:25 pm »
https://www.esa.int/Enabling_Support/Operations/ESA_ground_stations_support_Chandrayaan-3_Moon_mission [13/07/2023 ]

Quote
Support to additional ISRO missions

Chandrayaan-3 is just one of two ISRO missions that ESA will support this summer.

ISRO’s Aditya-L1 solar observatory is due to launch towards the end of August. Aditya-L1 is named after the Hindu Sun god and the spacecraft’s future home, L1 – the first Lagrange point of the Earth-Sun system. It will study a number of properties of our star, such as the dynamics and origins of coronal mass ejections.

The ESA support to Aditya-L1 will include similar tracking activities from Kourou and Goonhilly. But it will also include support from the largest of ESA’s antennas – the three 35-metre deep space antennas, located in New Norcia, Australia, Malargüe, Argentina, and Cebreros, Spain.

These stations are used by ESA every day to communicate with its expanding fleet of Solar System explorers such as Juice, BepiColombo and Solar Orbiter, and space observatories such as Gaia and the recently launched Euclid. They also support missions flown by ESA’s institutional and commercial partners.

ESA Flight Dynamics experts were also involved in the support to Aditya-L1. ESA assisted with the validation of the ‘orbit determination’ software that ISRO will use for the Aditya-L1 mission. This software is vital for calculating exactly where your spacecraft is in order to communicate with it and calibrate its scientific instruments.

Discussions are underway regarding potential ESA ground station support for India’s first human spaceflight programme, Gaganyaan.

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Re: PSLV-XL C57? - Aditya-L1 - FLP - 26 August 2023
« Reply #15 on: 07/21/2023 05:12 pm »
https://www.theweek.in/news/sci-tech/2023/07/21/what-makes-aditya-l1-mission-to-sun-by-isro-special.html [July 21, 2023]

Quote
After reaching the LEO, the satellite will be maneuvred using its onboard thrusters. “A series of earth burn elliptical orbital maneuvers is conducted to raise its orbit towards the L1 Lagrange point to surpass the earth's gravitational pull. The estimated time required to reach the L1 Lagrange point is around 109 days,” said Dr. T.N. Suresh Kumar, former senior scientist at ISRO.

Quote
Once the Aditya L1 mission reaches the L1 Lagrange point, it will be injected to a halo orbit. “A halo orbit is a type of orbit that allows the satellite to remain in a stable position between the Earth and the Sun. The satellite will use its onboard scientific instruments to study the dynamics of Sun's chromosphere and corona, its magnetic field, and its solar flares, solar wind etc. The data collected by the Aditya L1 mission will help scientists to understand better about the Sun and its impact on Earth,” Kumar told THE WEEK.

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Re: PSLV-XL C57? - Aditya-L1 - FLP - 26 August 2023
« Reply #16 on: 07/22/2023 02:16 am »
We have a confirmation that this mission will use PSLV C57. From June 2023 monthly report: https://www.isro.gov.in/media_isro/pdf/Monthly_summary/Monthly_Summary_June2023_Eng.pdf

Quote
Vehicle stacking activities for the PSLV-C57/Aditya-L1 mission commenced from 30th June, 2023 at SDSC SHAR.

Offline Steven Pietrobon

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Re: PSLV-XL C57 - Aditya-L1 - FLP - 26 August 2023
« Reply #17 on: 07/30/2023 01:45 am »
During the DS-SAR webcast, it was mentioned that the next PSLV is in early September.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Online Galactic Penguin SST

A0769/23 - TEMPORARY DANGEROUS AREA, PSLV C57 AIRSPACE DEBRIS
-AIRSPACE DEBRIS RE-ENTRY IN TAHITI FIR WITHIN AN AREA BOUNDED BY
FOLLOWING POINTS :
1900S13240W 1700S13240W 1300S11200W 0630S09100W 0830S09100W
1500S11200W 1900S13240W.
-THIS AREA IMPACTS SCIZ FIR AND NO-FIR ZONE AS WELL.
AIRSPACE USERS ARE ADVISED OF THE PARTICULARLY DANGEROUS NATURE
OF THE ACTIVITY AND ARE STRONGLY INVITED TO AVOID THE AREA
DURING THE ACTIVITY TIME SLOT.
OPERATORS ARE INVITED TO FILE THEIR FLIGHT PLAN WITH A TRAJECTORY
THAT ENSURES THAT THE AREA IS CIRCUMNAVIGATED. SFC - UNL, 0400-0800, 02 SEP
04:00 2023 UNTIL 24 SEP 08:00 2023. CREATED: 08 AUG 20:14 2023

R0189/23 - ZONE ...D... SECT NORTH SCIZ FIR DUE TO PSLV C57 ROCKET LAUNCH.
THE AREA IS BOUNDED BY GEO COORD:
1634S / 12000W
1500S / 12000W
1500S / 11200W
1634S / 12000W
INSTRUCTIONS: SANTIAGO OCEANIC CONTROL 10024KHZ
FANS 1A EQUIPPED ACFT LOGON SCEZ
INFO PROVIDED BY AIRPORTS AUTHORITY OF INDIA. SFC - UNL, SEP 02 - 24 DLY BTN
0400-0800, 02 SEP 04:00 2023 UNTIL 24 SEP 08:00 2023. CREATED: 08 AUG 17:33 2023


NET September 2, 04:00 - 08:00 UTC.
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Offline FutureSpaceTourist

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Re: PSLV-XL C57 - Aditya-L1 - FLP - early September 2023
« Reply #19 on: 08/14/2023 03:59 am »
https://twitter.com/isro/status/1690935417342967808

Quote
PSLV-C57/Aditya-L1 Mission:

Aditya-L1, the first space-based Indian observatory to study the Sun ☀️, is getting ready for the launch.

The satellite realised at the U R Rao Satellite Centre (URSC), Bengaluru has arrived at SDSC-SHAR, Sriharikota.

More pics instagram.com/isro.dos/

https://isro.gov.in/Aditya_L1.html

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Re: PSLV-XL C57 - Aditya-L1 - FLP - late August 2023
« Reply #20 on: 08/14/2023 07:22 am »
https://twitter.com/chethan_dash/status/1690942187520016384

Quote
#JUSTIN #Sun #Space #India #Thread

India’s first solar mission, #AdityaL1, which Isro hopes to launch by the end of August or early September, has reached the spaceport in Sriharikota. 1/n

Pics: Isro

Quote
“#AdityaL1, the first space-based Indian observatory to study the Sun, is getting ready for launch.  The satellite realised at the URSC has arrived at SDSC-SHAR (spaceport) in Sriharikota,” Isro said. 2/n

Quote
#AdityaL1 will study many properties of Sun, such as dynamics & origins of coronal mass ejections and its home — L1 or first Lagrange point of Earth-Sun system — will allow it to orbit Sun at an almost constant distance from Earth, but without Earth eclipsing its view. 3/n

Quote
Spacecraft will always be in the same direction from Earth as the Sun. So, as Earth rotates, no single ground stn will always be in view of #AdityaL1. Using a global station network like ESA’s is the best way to exchange data & commands with spacecraft as often as possible. 4/n

Quote
Isro Chairman S Somanath told TOI me: “We are expecting to launch Aditya by the end of August.” He had also said that the review committee had recommended additional payload tests to gain confidence.” 5/n

Quote
Days after the #Chandrayaan3 launch, Somanath had told me that the work on getting the launch vehicle, PSLV, was also ongoing and that it was progressing smoothly. 6/n

Quote
Aditya-L1 will be placed 1.5-million-km from Earth in a halo orbit around the L1 point, which provides a greater advantage of observing the solar activities and its effect on space weather in real time. 7/n

Quote
“The spacecraft carries seven payloads to observe the photosphere, chromosphere and the outermost layers of the Sun (the corona) using electromagnetic and particle and magnetic field detectors… 8/n

Quote
…Using L1, four payloads directly view the Sun and the remaining three payloads carry out in-situ studies of particles and fields at L1, providing important scientific studies of the propagatory effect of solar dynamics in the interplanetary medium,” according to Isro. 9/n

Quote
Aditya’s payloads are expected to provide some of the most crucial information to understand the problem of coronal heating, coronal mass ejection, pre-flare and flare activities and their characteristics, dynamics of space weather, propagation of particles and fields etc. n/n

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Re: PSLV-XL C57 - Aditya-L1 - FLP - late August 2023
« Reply #21 on: 08/14/2023 05:32 pm »
Quote
PSLV-C57/Aditya-L1 Mission:

Aditya-L1, the first space-based Indian observatory to study the Sun ☀️, is getting ready for the launch.

The satellite realised at the U R Rao Satellite Centre (URSC), Bengaluru has arrived at SDSC-SHAR, Sriharikota.

More pics https://instagram.com/isro.dos/

https://isro.gov.in/Aditya_L1.html

https://twitter.com/isro/status/1690935417342967808

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Re: PSLV-XL C57 - Aditya-L1 - FLP - late August 2023
« Reply #22 on: 08/15/2023 06:48 am »
The NOTAM is saying NET 2 September but the tweet is saying end of August. Is there a new NOTAM with an August timeframe?
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - late August 2023
« Reply #23 on: 08/24/2023 05:38 pm »
https://www.indiatoday.in/science/chandrayaan-3/story/chandrayaan-3-moon-landing-success-update-what-next-for-isro-2426001-2023-08-24 [Aug 24, 2023]

Quote
"Everything is going as per plan. It will take 120 days to reach its destination, nearly 15 lakh kilometres away from Earth," Somnath said. This remarkable journey will place Aditya-L1 in a highly elliptical orbit, allowing it to conduct close observations of the Sun, monitor solar activity, and advance our understanding of the star that sustains life on Earth.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - late August 2023
« Reply #24 on: 08/25/2023 02:22 am »
https://www.wionews.com/india-news/moon-mission-successful-indias-sun-mission-aditya-l1-to-be-launched-in-2-weeks-628856 [Aug 24, 2023]

Quote
"The preparation for Aditya-L1 is going really well. At the Satish Dhawan Space Centre, final checks are being carried out on the spacecraft and the PSLV rocket(mission number C57) for this mission is being assembled," A.Rajarajan, the Director of the spaceport told WION.

Quote
Speaking to WION after the successful landing of Chandrayaan-3, he said that the Aditya-L1 mission is to be launched in the first week of September.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - early September 2023
« Reply #25 on: 08/25/2023 09:05 pm »
https://www.thetechoutlook.com/news/science/isro-to-launch-the-aditya-l1-mission-on-2nd-or-4th-september-2023/ [Aug 25, 2023]

Quote
The Indian Space Research Organisation (ISRO) is looking forward to launching the Aditya-L1 mission in the first week of September 2023. According to the latest update by Indian Aerospace Defence News – IADN, the mission will be launched on the 2nd or 4th of September 2023.


Not sure how accurate this information is.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - early September 2023
« Reply #26 on: 08/27/2023 10:07 pm »
Excerpt from a Malayalam language interview with Asianet News dated 26 Aug 2023:

Quote
Aditya-L1 integrated with launch vehicle. Launch date to be announced in 1-2 days. The spacecraft will take 125 days from launch to reach Lagrangian point L1.

https://twitter.com/pradx/status/1695507123260551290

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« Last Edit: 08/28/2023 10:16 am by input~2 »

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #28 on: 08/29/2023 06:08 am »
With Sun in background ,if antennae on Earth have to decode intelligence, will require a large power to be transmitted from AdityaL1 or a relay outside the solar disc.

How ISRO plans to communicate?

Secondly, If DSN looks directly to Sun, will not the Feed elements/electronics heat abnormally due to solar heat radiation?

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #29 on: 08/29/2023 08:27 am »

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #30 on: 08/29/2023 05:24 pm »
Aditya-L1 mission gallery is up: https://www.isro.gov.in/AdityaL1_gallery.html

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #31 on: 08/29/2023 07:54 pm »
https://twitter.com/isrosight/status/1696546855671259265

Quote
🚀PSLV-C57/🛰️Aditya-L1 Mission:

The launch of Aditya-L1,
the first space-based Indian observatory to study the Sun ☀️, is scheduled for
🗓️September 2,2023, at
🕛11:50 Hrs. IST from Sriharikota.

isro.gov.in/Aditya_L1.html
#AdityaL1 #ISRO

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #32 on: 08/30/2023 05:22 am »
Two booklets on Aditya L1.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #33 on: 08/31/2023 03:23 pm »
https://twitter.com/esaoperations/status/1697263656109801957

Quote
India turns to the Sun 🇮🇳 🛰️☀️

@isro's #Aditya-L1 solar observatory is due to launch on Saturday, 2 September, at 08:20 CEST.

It's the first Indian satellite mission to study the #Sun, and @esa is providing two important types of support: https://esa.int/Enabling_Support/Operations/How_is_ESA_supporting_ISRO_s_Aditya-L1_solar_mission
🧵👇

Quote
#AdityaL1 will study our dynamic and turbulent star using seven scientific instruments.

Four of them will view the Sun directly, while the other three will study the #SpaceWeather the Sun generates in interplanetary space.

Quote
The spacecraft will observe the Sun from the ‘first #Lagrange point’ – L1.

L1 is a gravitational balance point where a spacecraft can operate for years without having to use much fuel.

It’s also a great location to observe the Sun, as Earth never blocks the view of our star.

Quote
ESA is the main provider of #GroundStation support to #AdityaL1.

Our stations will be used to send the commands that control Aditya-L1 in flight, to receive vital data on the spacecraft’s health and location, and to receive the scientific data it sends to Earth.

Quote
Thanks to our global network of antennas, we can communicate with #AdityaL1 at any time.

All three of our large, deep space antennas in Spain, Argentina and Australia will support the mission.

So will Kourou station and @Goonhillyorg, on top of their support to #Chandrayaan3.

Quote
But to carry out its mission, #AdityaL1 first has to get to L1 and stay there safely.

That is not simple.

Come back tomorrow to learn more about how #ESA helped #ISRO prepare for the challenges of operating a spacecraft at a Lagrange point.

Hint: #FlightDynamics

🎨@isro

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #34 on: 09/01/2023 08:09 am »
https://twitter.com/isro/status/1697506899242217921

Quote
PSLV-C57/Aditya-L1 Mission:
The 23-hour 40-minute countdown leading to the launch at 11:50 Hrs. IST on September 2, 2023, has commended today at 12:10 Hrs.

The launch can be watched LIVE
on ISRO Website isro.gov.in
Facebook facebook.com/ISRO
YouTube
DD National TV channel
from 11:20 Hrs. IST

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #35 on: 09/01/2023 02:14 pm »
https://twitter.com/isro/status/1697603558861103467

Quote
Here is the brochure:
https://www.isro.gov.in/media_isro/pdf/AdityaL1_Mission_Brochure.pdf

and a few quick facts:
🔸Aditya-L1 will stay approximately 1.5 million km away from Earth, directed towards the Sun, which is about 1% of the Earth-Sun distance.
🔸The Sun is a giant sphere of gas and Aditya-L1 would study the outer atmosphere of the Sun.
🔸Aditya-L1 will neither land on the Sun nor approach the Sun any closer.

https://www.isro.gov.in/Aditya_L1-MissionDetails.html

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #37 on: 09/02/2023 05:40 am »
https://twitter.com/chethan_dash/status/1697801348363039172

Quote
#Update #Space #thread

While several of its teams continue to romance #Moon, Isro is in the last leg of prep for a "Surya Namaskara". #AdityaL1 slated to launch just hrs from now. Read on to know exclusive details on why launch profile is for 63 mins, about #AOP & more… 1/n

#AdityaL1 will be launched in the 59th flight of #PSLV, after several yrs of devp. PSLV-C57, in XL configuration, will place #AdityaL1 in a highly eccentric Earth-bound orbit, an elliptical orbit whose Perigee is expected to be around 235km & Apogee more than 19,000km. 2/n

From there, #AdityaL1 will perform multiple orbital manoeuvres using LAM (liquid apogee motors) to reach the Lagrange Point-1 or #L1 about 1.5-million-km away. That is 1/100th of the distance between Earth and Sun. 3/n

Unlike a regular #PSLV launch profile, which places spacecraft into orbits roughly under 25 mins from lift-off, #AdityaL1 separation is projected to happen 63-mins after the rocket blasts off from the second launch pad in Sriharikota. 4/n

This'll be one of the longest PSLV missions ever. The Feb 2021 mission that put Brazil’s #Amazonia & 18 sats into orbits took 1.55hrs, while Sept 2016 mission that put 8 sats into orbits took 2.15hrs. Both involved multiple satellites and orbits, unlike #AdityaL1. 5/n

On why such a long time for separation, VSSC director S Unnikrishnan Nair explained: “Spacecraft demands a specific AOP (argument of Perigee). To meet the AOP, we’re not firing PSLV’s final stage (PS4) in a single go… 6/n

…PS4 is fired for 30 seconds when we reach a normal orbit and stay there until we get the required AOP naturally. Then, PS4 is fired again before separation. The separation occurs at 63 minutes because PS4 only separates after the AOP is achieved.” 7/n

Stating that an AOP defines the path of the spacecraft to the final destination, Nair said in Aditya’s case, AOP is “when the ascending trajectory of the spacecraft cuts the (Earth’s) equator”. This angle has been defined and needs to be achieved to make it to L1 as desired. 8/n

“If we wanted a launch profile without this specific AOP, we needed to use the window available next January. To launch now, we need to ensure this AOP to account for the celestial movements,” Nair explained. 9/n

#L1 is a vantage point. Any satellite placed in the halo orbit around L1 has the advantage of continuously viewing the Sun without any occultation/eclipses. This will provide a greater advantage of observing the solar activities and its effect on space weather in real-time. 10/n

What after launch: Post launch, #AdityaL1 stays in Earth-bound orbits for 16 days, during which it undergoes 5 manoeuvres to gain the necessary velocity for its journey… 11/n

…Subsequently, it undergoes a Trans-Lagrangian1 Insertion (TLI) manoeuvre, marking the beginning of its 110-day trajectory to the destination around the L1. Upon arrival at L1, another manoeuvre binds Aditya-L1 to an orbit around L1. 12/n

With #AdityaL1, Isro will venture into the study of solar activities and its effect on space weather. The scientific objectives of Aditya-L1 include the study of coronal heating, solar wind acceleration, CMEs, dynamics of solar atmosphere & temperature anisotropy. 13/n

To achieve this, the spacecraft is packed with seven scientific instruments, which I've reported in detail earlier. n/n

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #38 on: 09/02/2023 05:41 am »
https://twitter.com/haygenwarren/status/1697775081408094288

Quote
Saturday morning, ISRO will launch the Aditya-L1 spacecraft to Sun-Earth Lagrange Point 1 (L1) atop a PSLV-XL rocket. Once at L1, Aditya-L1 will research the Sun and it’s characteristics.

William Graham (@w_d_graham) with the details. ⬇️

https://www.nasaspaceflight.com/2023/09/india-aditya-l1-pslv/

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #39 on: 09/02/2023 05:46 am »
Webcast has begun.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #40 on: 09/02/2023 05:50 am »
T-30 minutes.
« Last Edit: 09/02/2023 05:50 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #41 on: 09/02/2023 05:52 am »
Our commentators.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #42 on: 09/02/2023 05:53 am »
Another big crowd to watch the launch.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #43 on: 09/02/2023 05:58 am »
Integration video.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #44 on: 09/02/2023 06:00 am »
T-20 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #45 on: 09/02/2023 06:06 am »
T-15 minutes. Launch authorisation has been given.

Launch autosequence has started.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #46 on: 09/02/2023 06:10 am »
T-10 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #47 on: 09/02/2023 06:15 am »
T-5 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #48 on: 09/02/2023 06:18 am »
T-2 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #49 on: 09/02/2023 06:19 am »
T-1 minute.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #50 on: 09/02/2023 06:20 am »
Liftoff!
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #51 on: 09/02/2023 06:21 am »
T+1 minute.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #52 on: 09/02/2023 06:23 am »
T+2 minutes. First stage separation.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #53 on: 09/02/2023 06:23 am »
T+3 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #54 on: 09/02/2023 06:24 am »
Fairing separation.

T+4 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #55 on: 09/02/2023 06:27 am »
Second stage separation.

T+5 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #56 on: 09/02/2023 06:27 am »
Quote
LAUNCH! ISRO PSLV-C57 launches Aditya-L1 to study the Sun.

Overview:
nasaspaceflight.com/2023/09/india-…

ISRO livestream:
youtube.com/watch?v=_IcgGY…

https://twitter.com/nasaspaceflight/status/1697857691849261477

Quote
On to the second stage.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #57 on: 09/02/2023 06:27 am »
T+6 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #59 on: 09/02/2023 06:28 am »
PS3 burnout.

T+7 minutes. Upcoming events.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #60 on: 09/02/2023 06:29 am »
T+8 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #61 on: 09/02/2023 06:29 am »
T+9 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #62 on: 09/02/2023 06:31 am »
PS3 separation.

T+10 minutes. Upcoming events. Long coast before fourth stage ignition.

1493.52 0:24:53 PS4 Burn-1 Ignition
1523.38 0:25:23 PS4 Burn-1 Cut-off
3127.52 0:52:07 PS4 Burn-2 Ignition
3599.52 0:59:59 Burn-2 Cut-off
3799.52 1:03:19 Aditya-L1 Separation
4042.52 1:07:22 MON Passivation Start
4382.52 1:13:02 MMH Passivation Start
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #63 on: 09/02/2023 06:32 am »
https://twitter.com/hemanphinehas/status/1697858504130994243

Quote
Liftoff normal. So are my hydration levels 💦💦

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #64 on: 09/02/2023 06:34 am »
T+13 minutes. Vehicle performance normal.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #65 on: 09/02/2023 06:35 am »
T+15 minutes. Altitude a little higher than expected.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #66 on: 09/02/2023 06:37 am »
T+16 minutes. Vehicle and payload are slowly rotation.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #67 on: 09/02/2023 06:40 am »
T+20 minutes.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #68 on: 09/02/2023 06:42 am »
Payload now quite a bit higher than expected.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #69 on: 09/02/2023 06:44 am »
T+23 minutes. One minute and 53 seconds to first ignition.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #70 on: 09/02/2023 06:45 am »
T+24 minutes and 53 seconds. Expected first ignition for 30 seconds.

As vehicle is out of range, ISRO is showing a panel presentation.
« Last Edit: 09/02/2023 06:47 am by Steven Pietrobon »
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #71 on: 09/02/2023 06:46 am »
T+25 minutes and 23 seconds. Expected cutoff.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #72 on: 09/02/2023 06:46 am »
Don't know if anyone else heard it, but in the background there was an announcement about a loss of signal and the spacecraft being off track. COuldn't really hear it because they've cut to something else, but I don't think its going well.

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Don't know if anyone else heard it, but in the background there was an announcement about a loss of signal and the spacecraft being off track. COuldn't really hear it because they've cut to something else, but I don't think its going well.

IIRC it was said before liftoff that the 1st burn of the 4th stage will be outside of tracking station range; there's a tracking ship tracking it for the 2nd burn.

The track did went a bit higher than planned after 3rd stage burnout but it doesn't seems to be too much of a problem?
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #74 on: 09/02/2023 06:50 am »
Okay, it might be fine, it was just hard to tell with someone else speaking over the announcement, and of course it seemed a bit off course beforehand. Hopefully its all fine.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #75 on: 09/02/2023 06:51 am »
T+30 minutes.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #76 on: 09/02/2023 06:54 am »
Trajectory at T+24 minutes and 10 seconds, which is just before ignition.
« Last Edit: 09/02/2023 06:56 am by Steven Pietrobon »
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #77 on: 09/02/2023 06:58 am »
T+16 minutes. Vehicle and payload are slowly rotation.

missed it.
was it a deliberate spin up, or tumbling?
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T+16 minutes. Vehicle and payload are slowly rotation.

missed it.
was it a deliberate spin up, or tumbling?
Thermal control I guess?
Seems like there's a call out a minute ago that parameters have been updated or something like that.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #79 on: 09/02/2023 07:01 am »
T+40 minutes. I think I heard signal acquisition in the background.
« Last Edit: 09/02/2023 07:11 am by Steven Pietrobon »
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #80 on: 09/02/2023 07:11 am »
T+50 minutes. Telemetry signal acquired.
« Last Edit: 09/02/2023 07:11 am by Steven Pietrobon »
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #81 on: 09/02/2023 07:13 am »
T+52 minutes and 7 seconds. Expected second ignition for 7 minutes and 52 seconds.

Confirmation of ignition!
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #82 on: 09/02/2023 07:14 am »
Ignition +1 minute.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #83 on: 09/02/2023 07:15 am »
Ignition +2 minutes.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #84 on: 09/02/2023 07:16 am »
Ignition +4 minutes.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #85 on: 09/02/2023 07:18 am »
Ignition +5 minutes. Expected LOS.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #86 on: 09/02/2023 07:18 am »
los #2
« Last Edit: 09/02/2023 07:19 am by seshagirib »
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #87 on: 09/02/2023 07:19 am »
Waiting for AOS.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #88 on: 09/02/2023 07:21 am »
T+1 hour. AOS

Cutoff! Injection achieved.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #89 on: 09/02/2023 07:21 am »
aos #2, meco
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #90 on: 09/02/2023 07:24 am »
T+1 hour 3 minutes.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #91 on: 09/02/2023 07:24 am »
sat. sep.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #92 on: 09/02/2023 07:24 am »
Separation!
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #93 on: 09/02/2023 07:26 am »
ISRO Chairman. 235 x 19,000 km orbit achieved.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #94 on: 09/02/2023 07:28 am »
PMO Honourable Minister of State.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #95 on: 09/02/2023 07:30 am »
Aditya L1 Project Director. Solar panels have deployed.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #96 on: 09/02/2023 07:33 am »
Mission Director.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #97 on: 09/02/2023 07:34 am »
Chairman wrapping up. Rover has moved almost 100 m. Preparing them for the Lunar night.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #98 on: 09/02/2023 07:38 am »
End of webcast.

Congratulations to ISRO for the successful launch!

Speeches are still going, but we only heard the beginning before the video was ended.
« Last Edit: 09/02/2023 07:40 am by Steven Pietrobon »
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #99 on: 09/02/2023 07:45 am »
the official broadcaster has perfected the fine art of building hitchcockian suspense in the middle of a mission.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #100 on: 09/02/2023 07:53 am »
Quote
PSLV-C57/Aditya-L1 Mission:

The launch of Aditya-L1 by PSLV-C57 is accomplished successfully.

The vehicle has placed the satellite precisely into its intended orbit.

India’s first solar observatory has begun its journey to the destination of Sun-Earth L1 point.

https://twitter.com/isro/status/1697880031639564776

Quote
Aditya-L1 started generating the power.
The solar panels are deployed.

The first EarthBound firing to raise the orbit is scheduled for September 3, 2023, around 11:45 Hrs. IST
« Last Edit: 09/02/2023 07:56 am by FutureSpaceTourist »

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #101 on: 09/02/2023 08:01 am »
Congratulations to ISRO on another great launch!

So good to see the continuing run of successes, including commercial launches and lunar operations. Long may it continue.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #102 on: 09/02/2023 08:04 am »
A reminder that the Aditya mission thread is:

https://forum.nasaspaceflight.com/index.php?topic=33607.0

This thread remains for launch related posts.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #103 on: 09/02/2023 08:26 am »



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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #104 on: 09/02/2023 08:35 am »
https://twitter.com/hemanphinehas/status/1697887378797686962

Quote
Aditya spacecraft on its way to face the Sun. Congrats to ISRO on another complex mission success.

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #105 on: 09/02/2023 08:39 am »
Congratulations to ISRO on another great launch!

So good to see the continuing run of successes, including commercial launches and lunar operations. Long may it continue.

Thanks to FST and Steven for your continued professional coverage.  Fun to watch.
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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #106 on: 09/02/2023 09:55 am »
There's a mistake in the title of the thread: the launch took place from the Second launch pad.

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Re: PSLV-XL C57 - Aditya-L1 - SLP - September 2, 2023 - 0620UTC
« Reply #107 on: 09/02/2023 10:05 am »
https://twitter.com/narendramodi/status/1697873881221231055

Quote
After the success of Chandrayaan-3, India continues its space journey.

Congratulations to our scientists and engineers at @isro for the successful launch of India’s first Solar Mission, Aditya -L1.

Our tireless scientific efforts will continue in order to develop better understanding of the Universe for the welfare of entire humanity.

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Re: PSLV-XL C57 - Aditya-L1 - SLP - September 2, 2023 - 0620UTC
« Reply #108 on: 09/02/2023 05:45 pm »
https://twitter.com/tskelso/status/1698027452000587985

Quote
CelesTrak has GP data for 2 objects from the launch (2023-132) of Aditya-L1 atop a PSLV-XL rocket from Satish Dhawan Space Centre on Sep 2 at 0620 UTC: bbc.com/news/world-asi…. Data for the launch can be found at: https://celestrak.org/NORAD/elements/table.php?INTDES=2023-132

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Re: PSLV-XL C57 - Aditya-L1 - SLP - September 2, 2023 - 0620UTC
« Reply #109 on: 09/02/2023 06:19 pm »
Final flight stats for the Aditya-L1 mission:

https://twitter.com/ydnad0/status/1697928401812889868

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Re: PSLV-XL C57 - Aditya-L1 - FLP - September 2, 2023 - 0620UTC
« Reply #110 on: 09/03/2023 09:36 pm »
Don't know if anyone else heard it, but in the background there was an announcement about a loss of signal and the spacecraft being off track. COuldn't really hear it because they've cut to something else, but I don't think its going well.

Ground trace was off track because it was an extrapolated trace after PS3 separation without considering first PS4 ignition event (since there was loss of signal at the time). Later, when the signal was acquired by the ship-borne terminal in the Pacific Ocean, ground trace was updated based on real-time data from the spacecraft. There were some announcements by ROD about this.

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Re: PSLV-XL C57 - Aditya-L1 - SLP - September 2, 2023 - 0620UTC
« Reply #111 on: 09/06/2023 03:15 pm »
https://twitter.com/tskelso/status/1698027452000587985

Quote
CelesTrak has GP data for 2 objects from the launch (2023-132) of Aditya-L1 atop a PSLV-XL rocket from Satish Dhawan Space Centre on Sep 2 at 0620 UTC: bbc.com/news/world-asi…. Data for the launch can be found at: https://celestrak.org/NORAD/elements/table.php?INTDES=2023-132
No updated TLE available. Bit strange.

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Re: PSLV-XL C57 - Aditya-L1 - SLP - September 2, 2023 - 0620UTC
« Reply #112 on: 09/09/2023 04:49 am »
^^^
Now updated data available on  Celestrak .
JPL Horizons also has AdityaL1 now listed.

Tags: aditya-l1 sun ISRO 
 

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