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#20 by vyoma on 13 Aug, 2021 02:50
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Venus Ionospheric Plasma wavE detectoR (VIPER) prototype realized at SPL/VSSC:
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#21 by zubenelgenubi on 21 Dec, 2021 07:26
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Cross-post:
https://timesofindia.indiatimes.com/india/gaganyaan-to-be-launched-in-2023-indias-first-space-station-by-2030-jitendra-singh/articleshow/88231964.cms'
Time Line update
L1 Aditya and Chandrayaan-3 2022-2023
Space Station in 2030s
Venus mission 2023 -
#22 by vyoma on 27 Apr, 2022 17:25
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#23 by vyoma on 04 May, 2022 16:12
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https://www.hindustantimes.com/science/isro-plans-mission-to-venus-eyes-dec-2024-launch-window-101651664769670.htmlQuote
ISRO plans mission to Venus, eyes Dec 2024 launch window
Addressing a day-long meeting on Venusian science, Indian Space Research Organisation (ISRO) Chairman S Somnath said the Venus mission has been conceived, a project report made and "money identified".QuoteThe space agency is targeting a launch date in December 2024, with orbital manoeuvres scheduled for the following year, when the earth and Venus will be in such close proximity that the spacecraft can be placed in Venus' orbit with the least amount of propellant. The next similar window would be available in 2031.
Launch window moved to Dec 2024. Need to update thread title
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#24 by vyoma on 04 May, 2022 20:23
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https://timesofindia.indiatimes.com/india/aim-is-to-find-unique-outcome-from-venus-mission-isro-chief-somanath/articleshow/91318633.cmsQuote
As per initial plans, Isro’s spacecraft is expected to be injected into a 500km×60,000km orbit around Venus, which will be reduced to 300×300km science orbit via aerobraking, which may take 100 to 150 orbits around Venus, that is six to eight months here, as per Nigar Shaji, the study director of the proposed mission.
QuoteT Maria Antonita from Isro Space Science Programme Office, elaborated on the various objectives of the mission, which can be put under three broad categories each of which have further sub-objectives.
The key objectives are: Investigation of surface process and shallow subsurface stratigraphy; study of the structure, composition and dynamics of the atmosphere and the third, investigation of Solar wind interaction with Venusian ionosphere.
Under these, Isro will study active volcanism, occurrence of lightning, craters, presence of Oxygen, Venus’ geology, etc. -
#25 by vyoma on 04 May, 2022 21:45
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One-day National Meet on Venusian Science:
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#26 by vyoma on 04 May, 2022 22:16
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#27 by vyoma on 06 May, 2022 04:52
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https://www.isro.gov.in/update/05-may-2022/isro-synergises-national-efforts-to-study-planet-venusQuote
May 05, 2022
ISRO SYNERGISES NATIONAL EFFORTS TO STUDY PLANET VENUS
Inaugural session of the one-day national meet on Venus science; Seen in this picture Dr. Somanath S, Chairman, ISRO / Secretary, DOS (middle), Dr. Shantanu Bhatawdekar, Scientific Secretary, ISRO (right), Dr. Tirtha Pratim Das, Director, Science Programme Office, ISRO HQ (second from left) and Dr. Maria Antonitta, Programme manager, Science Programme Office, ISRO HQ (left)
On May 4, 2022, ISRO had organized a single-day National meeting on Venus science, in virtual mode, with the theme ‘Outstanding Scientific Problems on Venus: Need for Space-based Studies’, to brainstorm on the scientific contexts and possibilities of the Venusian science. The event witnessed active participation from several academic and research institutes, that included eleven scientific lectures from IIT-Delhi; IIT-Bombay; IIT-Roorkee; IIA, Bangalore; IISER, Kolkata; IIG, Mumbai; CUSAT, Kochi; SPPU, Pune; Amity University, Noida, and more; and four lectures from ISRO/DOS.
The event was inaugurated by Shri Somanath S., Chairman, ISRO / Secretary, DOS, in the presence of Shri Shantanu Bhatawdekar, Scientific Secretary, ISRO, and Dr. Tirtha Pratim Das, Director, Science Programme Office, ISRO Headquarters. During the inaugural address, Chairman, ISRO / Secretary, DOS mentioned that ISRO has conceptualized an orbiter mission to Venus, with a set of scientific instruments to study the Venus system science. He emphasized the need for the synergy between the academicians, scientists and engineers to ensure effective scientific planning for the country’s Venusian endeavor. He stressed bringing out unique scientific results from the proposed Venus mission and urged the scientists, and academicians of the Nation to invest their intellect and efforts to bring out the best scientific outcome. Shri Shantanu Bhatawdekar, Scientific Secretary, ISRO, mentioned that this meeting would provide a platform for the sustained association between the academia/institutes and the scientists and engineers of ISRO/DOS.
This national meet comprised three sessions. The first session was dedicated to the scientific context of the Venus exploration, and the mission challenges. The second session focused on the science expected from the space-based experiments from the proposed Venus mission, on the facets of the Sun-Venus connection, Venusian atmosphere and ionosphere, and Venusian surface and subsurface. The third session, titled ‘Opportunities for the User Community’ was dedicated to opening up the opportunities to establish an association between ISRO/DOS scientists and the scientists/academicians from the academic institutes. This session aimed at laying the plan for synergizing the experience, wisdom and expertise of the scientists of the country, to build an effective Venus science community, to take the flag of the future Venus missions forward.
During the third session of the meet, scientists from ISRO/DOS spoke about the scientific experiments envisaged to perform from the proposed Venus orbiter. They highlighted the domains and specific problems in which contributions from academia / institutes are solicited. Dr. Tirtha Pratim Das concluded the meeting seeking proposals from the scientists from academia and institutes to work jointly with ISRO/DOS towards the Venusian endeavor.
The event was live-streamed to the ISRO website, and the ISRO social media platforms. The recording of the meet can be viewed on Youtube/ISRO Official. -
#28 by vyoma on 13 Jul, 2022 08:41
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From "Space Research in India" 2020-2021 report here:Quote
PRL has proposed the following instruments for proposed Venus Orbiter Mission.
• Narrow band oxygen Airglow detection in Venusian Atmosphere (NAVA)
• Venus Orbit Dust Experiment (VODEX)
• Lightning Instrument for Venus (LIVE)
• Venus Radiation environment monitor (VeRad)
• Venus Solar Soft x-ray Spectrometer (VS3) -
#29 by vyoma on 13 Jul, 2022 08:46
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From "Space Research in India" 2020-2021 report here:Quote
Payloads under development for future missions:
o Venus Cloud Dynamics and Meteorology Experiment (VEDAM): VEDAM is a meteorological suite with additional local imaging, wind velocity and particle size measurements.
o Miniature Neutral Mass spectrometer (MNMS): This instrument would determine in- situ abundances of neutral species in the upper troposphere, Search for the presence of Sulphur and Chlorine compounds and Study of dynamics of the middle atmosphere of Venus clouds and their formation of different layers.
o Development Gamma-Ray Spectrometer for planetary Mission using scintillation detector: Knowledge of elements such as Si, O, Ca, Mg, Al, Fe, Na, K, Th help in deciphering the origin and evolution of various solar system objects such as planets, satellites, and asteroids. A Gamma-ray spectrometer (GRS) is being developed to be flown on a future missions for such measurements.
Looks like PRL has already started working on payloads for Venus mission. -
#30 by vyoma on 09 Aug, 2022 16:55
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https://www.spsmai.com/experts-speak/?id=1179&q=Indias-Venus-Mission [05 June 2022]Quote
S. Somnath, Chairman of the Indian Space and Research Organisation (ISRO) stated on May 4, 2022, that ISRO is ready to co-sign an orbiter to Earth's twin sister planet Venus to study the Venusian atmosphere and that ISRO is set to construct and launch a mission to discover Venus as the capability to build and launch a mission to the planet exists with India. Somnath was speaking at a one-day conclave; National Meet on Venus Science with the theme ‘Outstanding scientific problems on Venus: Need for space-based studies’.
Somnath said, "Work has been going on for years. Currently, the Venus mission is conceived, the project report is made, overall plans are ready, money is identified and that the entire thing is done. Building and putting a mission on Venus is possible for India in a very short space of time, as the capability today exists with India," ...QuoteISRO is eyeing the December 2024 window for its Venus launch with orbital maneuvers planned for the following year when the Earth and Venus would be so aligned that the spacecraft could be put in the planet’s orbit using propellant. ISRO is yet to release an official timeline for the Venus mission but the next similar window will then be available only in 2031.
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#31 by vyoma on 13 Aug, 2022 15:52
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"Venus Infrared Atmospheric Gases Linker" (VIRAL) payload being developed for ISRO's Venus Orbiter Mission (Shukrayaan) is in trouble. This payload is being jointly developed by Russia (Roscosmos) and France (LATMOS, CNES): https://tass.com/science/1493057 [12 Aug 2022]Quote
France refuses to work with Russia on device for India's Venus mission — Space Institute
The device is intended to study the atmosphere of Venus by spectroscopy
MOSCOW, August 13. /TASS/. France has abandoned plans to create, together with Russia, a device for the orbiter that India plans to launch to Venus, Oleg Korablev, deputy director of the Space Research Institute of the Russian Academy of Sciences for the ExoMars project, head of the Planetary Physics department of the Space Research Institute of the Russian Academy of Sciences, told TASS.QuoteThe key element, the detector, will be Russian-made. "In principle, there is also a Chinese analogue, but now we want to use a Russian one," Korablev said.
According to him, the French side initially planned to pay for the purchase of the detector. "Roscosmos approached the whole thing with understanding, with aspiration," Korablev added, "We agreed on new estimates, the costs; Russia itself will buy these components. And, accordingly, not of French manufacture".QuoteThe start of the Indian mission was scheduled for December 2024, the exit station to the Venusian orbit is planned for 2025, when the Earth and Venus will be close to each other ...
QuoteAccording to Korablev, there is no exact information at this time on whether India's first mission to Venus will take place. "It depends on the Indian partners, so far they haven't fully decided when. And whether it will happen at all. The mission has not been finally approved," he said.
Quote"Because Roscosmos is not financing us yet as the Indian project is not confirmed. We are waiting for this moment, but time is running out. Perhaps, India can make devices in a year, but we cannot. Since the requirements to Russian devices and components are very high, there is the so-called certification of components, which is not so easy to procure. This is why our cycle is longer. So, because of this, we are a bit at odds with this launch date, if it is respected, of course."
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#32 by sanman on 18 Oct, 2022 04:25
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One of the slides (2:23:46) in ISRO Chairman S Somanath's recent talk at the Indian National Academy of Engineering covers ISRO Science Missions, and it seems to mention a possible orbiter+lander combo for Venus:Quote
Mission to Venus
* Orbiter & lander
* Higher resolution surface-topography
* Profiles of sub-surface features
* Solar X-ray spectrum
* International payloads
So while aerocapture may be considered doable for Venus given its relatively thick atmosphere, a lander would however seem much more challenging, due to the high temperature environment on the surface. How would sub-surface mapping be done? Some kind of radar?
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#33 by zubenelgenubi on 31 Jan, 2023 18:36
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Cross-post:
https://twitter.com/sdhrthmp/status/1619543335416532993
QuoteChandrayaan-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
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#34 by vyoma on 22 Jul, 2023 02:35
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From June 2023 monthly report: https://www.isro.gov.in/media_isro/pdf/Monthly_summary/Monthly_Summary_June2023_Eng.pdfQuote
Extensive three-dimensional simulations of the distribution of solar occultation tangent points and their spatial coverage as a function of various satellite orbital parameters and seasons were conducted for Venus.
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#35 by vyoma on 23 Aug, 2023 18:40
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PRL's proposal for payloads for Venus mission: https://www.prl.res.in/~pids/VENUS.htmlQuote
PRL has proposed the following instruments for Venus Orbiter Mission. These instrument have been reviewed by the expert committee and also by the APEX. The following instruments are shortlisted to be flown fly in Venus Orbiter mission.
Venus Orbit Dust Experiment (VODEX)
It is proposed to understand the interplanetary dust flux at Venus and its possible distribution around Venus. There are no measurements of Interplanetary Dust Particles (IDPs) at Venus. The instrument can detect particles of size from few hundreds nm to few µm, travelling at hypervelocity (> 1 km/s). The outcomes can help explain the dust flux at Venus and whether there is any ring around Venus. The study of dust can help explain the RO experiment results.
Lightning Instrument for Venus (LIVE)
This experiment will measure the lightning spectrum and its frequency of occurrence on Venus. There are few measurements which indicate the presence of lightning on Venus however, they are controversial. The lightning gives energy to the atmosphere and the chemistry may be modified.
Venus Radiation environment monitor (VeRad)
To measure the high energy particles entering in to the Venus atmosphere in the energy range of 100 keV to 100 MeV and to study their effects in the enhancement of ionization rates on the Venus atmosphere. This is the first time such measurement will be carried out in the close vicinity. This instrument also aims at measuring the radiation levels en-route to the Venus. The wide dynamic range will be covered will be covered with stack of Si PIN detectors and Scintillator detectors.
Venus Solar Soft x-ray Spectrometer (VS3)
To study the effect of solar X-rays on the Venus atmosphere in the energy range of 1 to 15 keV with high energy resolution and high cadence measurements. No simultaneous measurement of Solar X-ray flux and the electron density has been attempted.
Retarding Potential Analyser (RPA)
In situ investigation of ion densities (O2+, O+, CO2+ and H+) and the plasma temperature of the upper atmospheres. This instrument is being developed by IIST and PRL is responsible for data analysis and science.
Venus Neutral and Ion Mass Analyzer (VENIMA)
To measure the composition, structure, variability and the thermal state of the Venus atmosphere and its dynamics by measuring the ions and neutrals with mass resolution of >100 from the orbiter satellite. Discussion with SPL/VSSC is underway to explore the facility of combining the developments both at PRL and SPL. -
#36 by sanman on 16 Dec, 2023 04:32
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