Author Topic: PSLV-DL C58 - XPoSat, POEM-3 Etal - FLP - January 1, 2024 (03:40 UTC)  (Read 18988 times)

Offline vyoma

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XPoSat is a space observatory satellite being developed by ISRO and the Raman Research Institute. It'll be launched by SSLV, probably in Q4 2022.

Payloads on XPoSat:
1) POLIX (Polarimeter Instrument in X-rays) developed by the Raman Research Institute.
2) XSPECT (X-ray Spectroscopy and Timing) developed by URSC, ISRO.
« Last Edit: 01/01/2024 03:01 am by russianhalo117 »

Offline vyoma

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POLIX payload information.
« Last Edit: 07/10/2022 11:07 pm by vyoma »

Offline vyoma

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XPoSat mission objectives.
« Last Edit: 07/10/2022 11:10 pm by vyoma »

Offline Steven Pietrobon

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I don't remember where I got the information from, but my information is that XPoSat is flying on SSLV D3 in December 2022.
« Last Edit: 07/11/2022 08:15 am by Steven Pietrobon »
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Offline vyoma

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I don't remember where I got the information from, but my information is that XPoSat is flying on SSLV D3 in December 2022.

Thanks, updated thread title.

Offline vyoma

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Quote
POLIX is an X-ray Polarimeter Instrument for Astronomical Observations under development at the Raman Research Institute. It is the only instrument in the energy band of medium energy X-rays, 8-30 keV, and is the main payload on the soon to be launched dedicated ISRO satellite XPoSat. A completely in-house design, and development, of the Qualification Model (QM) of POLIX was completed in the current year and has successfully undergone space qualification tests like vibration test and environmental test at the UR Rao Satellite Centre (URSC).

From Government of India, Department of Science and Technology Annual Report 2021-22: https://dst.gov.in/sites/default/files/Annual%20Report%202021-22%20%28English%29.pdf
« Last Edit: 07/11/2022 04:56 pm by vyoma »

Offline vyoma

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From "Space Research in India" 2020-2021 report here:

Quote
XSPECT: X-ray spectroscopy and Timing on XPoSAT
XPoSat is India’s X-ray polarimeter mission carrying POLIX (A Thomson scattering polarimeter) and XSPECT (X-ray Spectroscopy and Timing) payloads. XSPECT is large area spectrometer payload and has a unique opportunity to observe astrophysical sources for very long durations to study their spectral and temporal variability in 0.8 to 15 keV x-ray band.

XSPECT is configured as two detector packages connected to a single electronics packages, which powers the detectors and does the necessary signal conditioning and has interface with spacecraft. Two different Field of Views (FOV) collimators, 2°X2° and 3°X3 are used enabling us to efficiently model-out the X-ray sky background. Swept Charge Device (SCD)s are used as detectors (effective area of ~35cm2 @ 6keV). These detectors enable XSPECT to have pile-up free observations at the expected count-rates with a very good energy resolution of less than ~ 200 eV @ 5.9keV. XSPECT provides a timing resolution of ~2 msec.

Quote
Polarimeter Instrument in X-rays (POlIX): The POLIX payload on-board XPOSAT aims at measuring the degree and direction of polarisation of X-ray photons from about 50 potential cosmic sources of interest in the energy band 8-30 keV. The instrument is being developed by Raman Research Institute, Bengaluru with the support of URSC.

Offline vyoma

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From "Space Research in India" 2020-2021 report here:

Quote
X-ray Polarimeter (POlIX)

During the past few years, RRI has been designing and building an X- ray polarimeter (POLIX) instrument for astronomical observations. POLIX is the main payload onboard the small satellite mission of ISRO called XPoSat dedicated for X-ray polarization measurement from cosmic sources. X-ray polarimetry is an unexplored area in high energy astrophysics. X-ray polarization measurements can give valuable insights into (i) the strength and the distribution of magnetic field in the sources (ii) geometric anisotropies in the sources (iii) their alignment with respect to the line of sight and (iv) the nature of the accelerator responsible for energizing the electrons taking part in radiation and scattering. Development of the Qualification Model (QM) of the X-ray Polarimeter instrument POLIX has been completed and assembly and tests of the Flight Model (FM) is ongoing.

Offline vyoma

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Looks like launch planned in Q2 2023. From Lok Sabha (parliment) Q&A sessions: http://164.100.24.220/loksabhaquestions/annex/179/AU556.pdf [20 July 2022]

Budget sanctioned for the mission is ₹60 crore (~$7.5M at today's exchange rates).
« Last Edit: 07/20/2022 06:37 pm by vyoma »

Offline zubenelgenubi

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No mention of upcoming SSLV launches in recent months.  Apparently, we know ISRO's full orbital launch schedule through July 2023.  Thus launch must be NET July or August Q3.

For now, I have re-edited the the thread title from "NET Q3 2023" to date "TBD."

Edited
« Last Edit: 05/31/2023 10:55 am by zubenelgenubi »
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Offline vyoma

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SSLV D3 would also carry this payload: Space borne GNSS-Reflectometry with NavIC

Offline vyoma

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XPoSat User Meet stream (25 May 2023):


Offline zubenelgenubi

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https://www.reddit.com/r/ISRO/comments/125rfb4/parliamentary_qa_29_march_2023_queries_on/
Regarding payloads to be launched by ISRO in 2023:
XPoSat is one of the listed payloads, aboard SSLV D3.

Lok Sahba questions and answers, March 29, 2023, pdf file attached

NET September:
Seeking correction or confirmation:

Chandrayaan-3 : LVM3 M4 : SLP : 12 July

commercial launch : PSLV : FLP : July

1st Gaganyaan in-flight abort test : S200 stage : FLP : early? August

Aditya-L1 : PSLV-XL C56 : FLP : mid August

INSAT-3DS : GSLV MkII F14? : SLP : after Chandrayaan-3
« Last Edit: 06/17/2023 04:17 am by zubenelgenubi »
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Offline Galactic Penguin SST

https://www.reddit.com/r/ISRO/comments/125rfb4/parliamentary_qa_29_march_2023_queries_on/
Regarding payloads to be launched by ISRO in 2023:
XPoSat is one of the listed payloads, aboard SSLV D3.

Lok Sahba questions and answers, March 29, 2023, pdf file attached

NET September:
Seeking correction or confirmation:

Chandrayaan-3 : LVM3 M4 : SLP : 12 July

commercial launch : PSLV : FLP : July

1st Gaganyaan in-flight abort test : S200 stage : FLP : early? August

Aditya-L1 : PSLV-XL C56 : FLP : mid August

INSAT-3DS : GSLV MkII F14? : SLP : after Chandrayaan-3

On the other hand the XPoSat User Meet stream above has the LV as PSLV (1:08:35 mark). I'm not sure if there was a late change.
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Offline zubenelgenubi

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On the other hand the XPoSat User Meet stream above has the LV as PSLV (1:08:35 mark). I'm not sure if there was a late change.
I edited the thread title.

Given the mass and orbit, I think a PSLV-CA will be sufficient, assuming this is the sole payload.

This could also be the "missing" C59 launch.

Screencap of PowerPoint at timepoint mentioned is attached.
« Last Edit: 06/17/2023 07:50 am by zubenelgenubi »
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Offline vyoma

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https://timesofindia.indiatimes.com/home/science/discussions-are-on-for-further-moon-landing-missions-says-isro-chairman/articleshow/101982513.cms?from=mdr [Jul 20, 2023]

Quote
BENGALURU: The Indian Space Research Organisation (Isro) is almost ready with XPoSat (X-ray Polarimeter Satellite), the country's first dedicated polarimetry mission to study various dynamics of bright astronomical X-ray sources in extreme conditions, chairman Somanath S said on Thursday.

Offline vyoma

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https://timesofindia.indiatimes.com/india/beyond-sun-moon-isro-chief-somanath-reiterates-missions-in-pipeline/articleshow/102741661.cms?from=mdr [Aug 15, 2023]

Quote
He said another interesting science mission, Xposat — India's first dedicated polarimetry mission to study various dynamics of bright astronomical X-ray — was ready.

No dates yet.

Online TheVarun

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This setellite( XPOSat) may be launched by the SSLV D3. I don't think ISRO has explicitly stated that it is a PSLV launch. Possible,  of course.

Offline GewoonLukas_

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This setellite( XPOSat) may be launched by the SSLV D3. I don't think ISRO has explicitly stated that it is a PSLV launch. Possible,  of course.

Confirmed for PSLV:

An excerpt from Malayalam language interview with ISRO chairman on Asianet News dated 26 Aug 2023:

Quote
INSAT-3DS on the GSLV, XPoSAT on the PSLV, SSLV-D3 launch, commercial launch of PSLV, unmanned Gaganyaan launch on LVM3,are upcoming missions over the next few months. Will give you enough news items in the next few months.
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Offline Vahe231991

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Any latest update on the launch window for the XPoSat? If the Anvesha launches this month, then the XPoSat could launch in the fourth quarter of this year.

Offline zubenelgenubi

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Any new news after today's Gaganyaan abort test?
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Offline GewoonLukas_

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NextSpaceflight (Updated ??)
Launch NET June 2024 (Could be NET Mid-2024, NET Q2 2024)
https://nextspaceflight.com/launches/details/7100
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Offline Galactic Penguin SST

NextSpaceflight (Updated ??)
Launch NET June 2024 (Could be NET Mid-2024, NET Q2 2024)
https://nextspaceflight.com/launches/details/7100

I updated this simply referring to the Indian Launch Schedule thread which put this simply as “2024”.
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Offline Steven Pietrobon

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This article from 7 October says launch is in December.

https://tech.hindustantimes.com/tech/news/isro-set-to-launch-shukrayaan-and-xposat-missions-to-exploring-the-universes-mysteries-71696664062649.html

"In December of this year, ISRO will launch XPoSat, also known as the X-Ray Polarimeter Satellite."
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Galactic Penguin SST

has XPoSat launching on PSLV C58 so it might be the next PSLV launch.

Source
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Offline zubenelgenubi

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Cross-post from Times of India:
Quote
...
<snip>
PSLV, GSLV Launch
He added that the space agency is targetting November-December for at least two more launches, one on its workhorse, the PSLV, and the other on the GSLV-Mk2.
“The PSLV will launch the Xposat and also have POEM (PSLV Orbital Experimental Module) carrying scientific and commercial payloads onboard. We’ll announce these features soon. The GSLV will launch the Insat-3DS satellite, which is almost ready. The vibration tests have begun today (Friday),” Somanath said.
<snip>
[Nov 11 IST]
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Offline GWR64

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Cross-post from Times of India:
Quote
...
<snip>
PSLV, GSLV Launch
He added that the space agency is targetting November-December for at least two more launches, one on its workhorse, the PSLV, and the other on the GSLV-Mk2.
“The PSLV will launch the Xposat and also have POEM (PSLV Orbital Experimental Module) carrying scientific and commercial payloads onboard. We’ll announce these features soon. The GSLV will launch the Insat-3DS satellite, which is almost ready. The vibration tests have begun today (Friday),” Somanath said.
<snip>
[Nov 11 IST]

I had to use a little trick to copy TOI, nothing illegal.
But I left the source link there on purpose.

Quote
...
Read more at:
http://timesofindia.indiatimes.com/articleshow/105133687.cms
« Last Edit: 11/12/2023 09:16 am by GWR64 »

Offline Galactic Penguin SST

NET December 28, 02:00 - 06:00 UTC per this NOTAM:

R0285/23 NOTAMN
Q) SCIZ/QRDCA/IV/NBO/W/000/999/1500S11900W180
A) SCIZ B) 2312280200 C) 2401260600
D) DLY BTN 0200-0600
E) ZONE ...D... SECT NORTH SCIZ FIR DUE TO PSLV ROCKET LAUNCH
THE AREA IS BOUNDED BY GEO COORD:
150000S / 1200000W
150000S / 1185100W
151600S / 1200000W
150000S / 1200000W
INSTRUCTIONS: SANTIAGO OCEANIC CONTROL 10024KHZ
FANS 1A EQUIPPED ACFT LOGON SCEZ
INFO PROVIDED BY AIRPORTS AUTHORITY OF INDIA
F) SFC G) UNL


Also this article confirms plans to launch by late December - it says the configuration with 2 strap-on SRBs (=-DL) would be used. [Nov 24/25]
« Last Edit: 12/08/2023 07:43 am by zubenelgenubi »
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Offline Galactic Penguin SST

New NOTAM showing this now slipping to NET New Year's Day 2024 (would be very surprised to be on January 1st, but you never know!):

(thanks to Ohsin @ Reddit r/isro sub-reddit for the updates)

  A3654/23 NOTAMN
Q) VOMF/QWMLW/IV/BO/W/000/999/
A) VOMF PART 1 OF 3 B) 2401010200 C) 2401260600
D) 0200-0600

E) ROCKET LAUNCH FM SHAR RANGE, SRIHARIKOTA WILL TAKE
PLACE AS PER FLW DETAILS.THE LAUNCH WILL BE ON ANY ONE OF
THE DAY DRG THIS PERIOD.ACTUAL DATE OF LAUNCH WILL BE
INTIMATED 24 HR IN ADVANCE THROUGH A SEPARATE NOTAM.
LAUNCH PAD COORD: 134400N 0801406E
NO FLT IS PERMITTED OVER THE DNG ZONES.
DANGER ZONE-1:IS A CIRCLE OF 10NM AROUND THE LAUNCHER.
DANGER ZONE-2:IS A SECTOR BTN 15NM AND 60NM FM LAUNCH PAD COORD
AND BTN AZM ANGLES 92 DEG AND 112 DEG FM TRUE NORTH.
DANGER ZONE-3:
1245N08305E
1325N08315E
1305N08415E
1225N08405E
DANGER ZONE-4:
1205N08545E
1240N08555E
1220N08710E
1145N08700E
END PART 1 OF 3
A3654/23 NOTAMN
Q) VOMF/QWMLW/IV/BO/W/000/999/
A) VOMF PART 2 OF 3 B) 2401010200 C) 2401260600
D) 0200-0600
E) RTE AFFECTED IN CHENNAI FIR
W20, Q24, Q23, V4, V9, Q10, Q11, A465, P761, N571, V3
CLOSURES/ALTN RTE FOR OVERFLYING
1.W20 NOT AVBL BTN MMV-KAMGU
ALTN:MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU
2.Q24 NOT AVBL BTN MMV-KAMGU
ALTN:MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU (UNI DIRECTIONAL)
3.Q23 NOT AVBL BTN RINTO-MMV
ALTN:RINTO-DCT-TTP-DCT-GUANI-DCT-MMV (UNI DIRECTIONAL)
4.V4 NOT AVBL BTN BOPRI-MMV
ALTN:BOPRI-DCT-RINTO-DCT-TTP-DCT-GUANI-DCT-MMV (UNI DIRECTIONAL)
5.V9 NOT AVBL BTN GUNRI-MMV
ALTN:GUNRI-V11-TTP-DCT-GUANI-DCT-MMV (UNI DIRECTIONAL)
6.Q11 NOT AVBL BTN GURAS-MMV
NO ALTN RTE
7.Q10 NOT AVBL BTN MMV AND SUGAN
NO ALTN RTE
8.A465 NOT AVBL BTN GURAS-MMV
ALTN:SAGOR-DCT-AVMOR-DCT-XOPOX
9.P761 NOT AVBL BTN MMV-DUMAR
ALTN
:MMV-P574-ELSAR-P762-PPB
10.N571 NOT AVBL BTN GURAS-BIKEN
ALTN:VIRAM-DCT-MMV-P574-ELSAR-P762-BIKEN
11.V3 NOT AVBL
NO ALTN RTE
DEPARTURES FM CHENNAI MAY FPL AS FOLLOWS:
1.W20/Q24 NOT AVBL BTN MMV - KAMGU
ALTN:MMV-DCT-DOHIA-DCT-RAMDO-DCT-KAMGU
2.P761 NOT AVBL BTN MMV-DUMAR
ALTN:MMV-P574-ELSAR-P762-PPB
END PART 2 OF 3
A3654/23 NOTAMN
Q) VOMF/QWMLW/IV/BO/W/000/999/
A) VOMF PART 3 OF 3 B) 2401010200 C) 2401260600
D) 0200-0600
E) SAR-P762-PPB
END PART 2 OF 3
3.A465 NOT AVBL BTN GURAS-MMV
ALTN:MMV-DCT-DOHIA-DCT-RAMDO-DCT-RINTO-DCT-DOKET
ARRIVALS TO CHENNAI MAY FPL AS FOLLOWS:
1.Q23 NOT AVBL BTN RINTO-MMV
ALTN:RINTO-DCT-TTP-DCT-GUANI-DCT-MMV
2.V4 NOT AVBL BTN BOPRI-MMV
ALTN:BOPRI-DCT-RINTO-DCT-TTP-DCT-GUANI-DCT-MMV
3.V9 NOT AVBL BTN GUNRI-MMV
ALTN:GUNRI-V11-TTP-DCT-GUANI-DCT-MMV
4.A465 NOT AVBL BTN DOKET-MMV
ALTN:DOKET-DCT-RINTO-DCT-TTP-DCT-GUANI-DCT-MMV
5.P761 NOT AVBL BTN DUMAR-MMV
ALTN:PPB-P762-BIKEN-P574-MMV
FLW STAR NOT AVBL AT CHENNAI:
RUPKU ARR
GAVID ARR FOR V3
FLW SIDS NOT AVBL AT CHENNAI:
DOHIA DEP FOR W20, Q24
SIDAT DEP FOR N571, P761
KOLCA DEP
F) GND G) UNL
END PART 3 OF 3

« Last Edit: 12/20/2023 08:34 am by Galactic Penguin SST »
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Offline Angry_cat

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PSLV-DL


Offline Steven Pietrobon

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PSLV-DL

That is PSLV-DL C44, which flew on 24 January 2019.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Galactic Penguin SST

Well then, it’s a real New Year’s Day launch (or New Year’s Eve if you are in the Americas!)

https://lvg.shar.gov.in/VSCREGISTRATION/index.jsp

Quote
PSLV-C58/XPOSAT launch scheduled at 09:10 (IST) / 03:40 (UTC) on 1 January 2024.
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Offline FutureSpaceTourist

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https://twitter.com/isrosight/status/1740164783612326061

Quote
Here are some visuals of the Integration of #PSLVC58 with #Xposat!🚀

The launch of India's first dedicated polarimetry mission to study polarisation of cosmic X-rays is scheduled for

🗓 January 01, 2024
🕘 At 09:10 hrs IST
from SDSC SHAR

#ISRO

Offline Galactic Penguin SST

Mission brochure:
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Offline FutureSpaceTourist

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https://twitter.com/chethan_dash/status/1740668328522534949

Quote
#Update #Space #India

India’s space activity in 2024 is expected to start with a launch on the first day, with @isro having begun last leg of pre-launch preparations to put into space #XPoSat on a #PSLV, whose last stage will host 10 other payloads after injecting main sat. 1/n

Multiple Isro officials confirmed to TOI that the launch is scheduled for January 1 as on date. With XPoSat, India is on the verge of a groundbreaking leap in space-based X-Ray astronomy. 2/n

Unlike previous missions that focused predominantly on imaging, time-domain studies, and spectroscopy, XPoSat aims to explore the polarisation of intense X-Ray sources, introducing a novel dimension to X-Ray astronomy, the space agency said. 3/n

“The mission's objectives include measuring X-Ray polarisation and conducting long-term spectral and temporal studies of cosmic X-Ray sources,” Isro said, adding that the anticipated mission life is around 5 years. 4/n

Scheduled for observation from Low Earth Orbit (LEO) at an altitude of approximately 650km and a low inclination of around 6°, XPoSat carries two payloads. These payloads enable simultaneous studies of temporal, spectral & polarisation features of bright X-Ray sources. 5/n

“The primary payload, POLIX (Polarimeter Instrument in X-rays), developed by
@RRI_Bangalore
 focuses on measuring polarimetry parameters in the medium X-ray energy range. It comprises a collimator, scatterer, and four X-ray proportional counter detectors,” Isro said. 6/n

“XSPECT (X-ray Spectroscopy and Timing), developed by UR Rao Satellite Centre, offers fast timing & excellent spectroscopic resolution in soft X-rays. It's capable of observing various sources, including X-ray pulsars, black hole binaries &active galactic nuclei,” Isro added. 7/n

Isro said XPoSat’s significance lies in its ability to act as a diagnostic tool for examining the radiation mechanism and geometry of celestial sources. 8/n

“By analysing X-Ray polarisation signatures, scientists can measure the mass and spin of accreting black holes, explore accretion flow, outflow, and jets, estimate strong magnetic fields & unveil the radiation zone and particle acceleration processes in pulsars,” Isro said. 9/n

10 Other Payloads On POEM: Aside from #XPoSAT, the main satellite, the PSLV will carry 10 more instruments to Space on its last stage — the PSLV Orbital Experimental Module or POEM. 10/n

They are; Radiation Shielding Experimental Module (RSEM)” to evaluate Tantalum coating effectiveness, by TakeMe2Space, Hyderabad; Women Engineered Satellite (WESAT)  to compare Solar Irradiance and UV Index, by LBS Institute of Technology for Women… 11/n

…BeliefSat-0, an amateur radio satellite by KJ Somaiya Institute of Technology; Green Impulse TrAnsmitter (GITA), a green bipropellant CubeSat propulsion unit  by Inspecity Space Labs Private Limited… 12/n

…Launching Expeditions for Aspiring Technologies - Technology Demonstrator  (LEAP-TD) for demonstration of subsystems of microsatellite by space startup Dhruva Space.” 13/n

The other five include, two instruments from Bengaluru based firm Bellatrix Aerospace — “RUDRA 0.3 HPGP” the green monopropellant thruster and “ARKA-200”, a heater less hollow cathode for Hall thrusters — two payloads by VSSC and one  PRL. 14/n

The two VSSC instruments are “Fuel Cell Power System (FCPS)” for demonstration of fuel cell and Silicon-based high energy cell, while the PRL payload, the Dust Experiment (DEX) will measure interplanetary dust count. n/n


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Launch stream:


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https://twitter.com/isrospaceflight/status/1741084993768845369

Quote
Video of integration of PSLV-DL for the PSLV-C58/#XPoSat mission! 🚀 #ISRO
Credit: @sdhrthmp

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news from you tube

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https://twitter.com/isro/status/1741351777277214993

Quote
🚀 PSLV-C58/ 🛰️ XPoSat Mission:
The launch of the X-Ray Polarimeter Satellite (XPoSat) is set for January 1, 2024, at 09:10 Hrs. IST from the first launch-pad, SDSC-SHAR, Sriharikota.

isro.gov.in/XPoSat.html

The launch can be viewed LIVE
from 08:40 Hrs. IST on
YouTube:
youtube.com/live/H10igyNHs…
isro.gov.in
facebook.com/ISRO
and @DDNational @RRI_Bangalore
#XPoSat

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Depending where you live, it's either the last launch of 2023 or the first launch of 2024.


« Last Edit: 01/01/2024 12:49 am by catdlr »
Tony De La Rosa, ...I'm no Feline Dealer!! I move mountains.  but I'm better known for "I think it's highly sexual." Japanese to English Translation.

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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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T-30 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Vehicle on the pad and 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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T-22 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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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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Mission Director (MD) authorising launch.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Automatic launch sequence initiated.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T-14 minutes.

Crowd watching launch.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Announcer talking over countdown net.  Hate that... T-5:00
« Last Edit: 01/01/2024 02:36 am by jimvela »

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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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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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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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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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Liftoff!
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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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Strap on separation.

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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T+3 minutes. Fairing separation.
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T+4 minutes. 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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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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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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Third stage cutoff. Coast for 200 s.

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

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Event times.

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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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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Third stage separation.

T+10 minutes. Coast for 425 seconds.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+11 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+12 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+14 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+15 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+16 minutes. Coming up to ignition.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Ignition.

T+17 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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T+18 minutes. Fourth stage 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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T+19 minutes.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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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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T+21 minutes. Cutoff. Good orbit.
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Separated!
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Video of separation.

POEM orbit lowering will be performed out of ground contact.
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Good start of 2024. 
Thanks for the coverage, Steven!

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ISRO Chairman. Solar panels have deployed.
« Last Edit: 01/01/2024 03:06 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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Mission Director.
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Satellite Director.
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VSSC Director.
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LPSC Director. Celebrating 60 years of first sounding rocket launch in November 1963.
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URSC Director. India celebrates New Year with the world's biggest skyrocket!
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SDSC SHAR Director.
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ISTRAC Director.
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IISU Director. 0.001 degree precision.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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Do we know the time of the PS4 restart burns?
-----------------------------

Jonathan McDowell
http://planet4589.org

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The third stage (PS3) I estimate to be in a -530 x 650 km x 17 deg orbit, with impact around 0427 UTC in the Pacific near 120W 15S.
The PS4 stage makes quite a big inclination change to 6 deg, and then for burns 2 and 3 back up to 9.6 deg.
-----------------------------

Jonathan McDowell
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ISRO Director wrapping up. POEM 3 being lowered to 350 km so as to not create orbital debris. Experiments should be completed in about a month. 2024 year of Gaganyaan. Two more test vehicle flights. PSLV, GSLV and SSLV missions.
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End of webcast. Congratulations to ISRO for the successful launch!
« Last Edit: 01/01/2024 03:34 am by Steven Pietrobon »
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New Year's congratulations to the entire ISRO launch campaign team!  First orbital launch of 2024 UTC for planet Earth!  🌏

Thank you Stephen, for today's launch thread coverage!

🎊🎉🍾🎈🥳🚀🛰
Support your local planetarium! (COVID-panic and forward: Now more than ever.) My current avatar is saying "i wants to go uppies!" Yes, there are God-given rights. Do you wish to gainsay the Declaration of Independence?

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Do we know the time of the PS4 restart burns?

According to an announcement after satellite separation, the first burn takes place during non-visibility period and second burn during a visible period. The non-visibility period is about 4500 s (75 minutes).
« Last Edit: 01/01/2024 03:36 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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Here are some screen grabs of the integration video I took previously, but failed to upload.
« Last Edit: 01/01/2024 03:41 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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The rest of the integration video screen grabs.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

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« Last Edit: 01/01/2024 04:11 am by catdlr »
Tony De La Rosa, ...I'm no Feline Dealer!! I move mountains.  but I'm better known for "I think it's highly sexual." Japanese to English Translation.

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Quote
2024 lifted off majestically. 📸

XPoSat health is normal.
Power generation has commenced.

https://twitter.com/isro/status/1741709142967070725

Quote
PSLV-C58/XPoSat Mission:

The PS4 stage is successfully brought down to a 350 km orbit.

Here are the PSLV-C58 tracking images
« Last Edit: 01/01/2024 06:35 am by FutureSpaceTourist »

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https://twitter.com/narendramodi/status/1741730593946423567

Quote
A great start to 2024 thanks to our scientists! This launch is wonderful news for the space sector and will enhance India's prowess in this field. Best wishes to our scientists at @isro and the entire space fraternity in taking India to unprecedented heights.

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https://www.nasaspaceflight.com/2023/12/india-xposat/

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India to kick off 2024 with X-ray astronomy satellite launch
written by William Graham December 31, 2023

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https://twitter.com/isro/status/1741763165065756902

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PSLV-C58 on board camera views.
#XPoSat
« Last Edit: 01/01/2024 09:23 am by FutureSpaceTourist »

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Tony De La Rosa, ...I'm no Feline Dealer!! I move mountains.  but I'm better known for "I think it's highly sexual." Japanese to English Translation.

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COMMENT    "GENERATED VIA SPACE-TRACK.ORG API"
ORIGINATOR    "18 SPCS"

OBJECT_ID    "2024-001A"
EPOCH    "2024-01-01T16:25:56.544672"
INCLINATION    "5.9870"
RA_OF_ASC_NODE    "115.4463"
ARG_OF_PERICENTER    "359.8378"
NORAD_CAT_ID    "58694"
PERIOD    "97.638"
APOAPSIS    "653.032"
PERIAPSIS    "638.299"
 
OBJECT_ID    "2024-001B"
EPOCH    "2024-01-02T14:25:28.598016"
INCLINATION    "9.6648"
RA_OF_ASC_NODE    "90.3195"
ARG_OF_PERICENTER    "348.5622"
NORAD_CAT_ID    "58695"
PERIOD    "91.484"
APOAPSIS    "352.627"
PERIAPSIS    "342.076"

 

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