Search found 660 matches
- 31 Mar 2024 23:09
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Japan's SLIM lander has survived the 2nd Lunar night. Must be having robust insulation and design margins for electronics, battery and cameras to survive -130 C and still wake up and send pictures. https://www.space.com/japan-slim-moon-lander-survives-second-lunar-night "According to the acquir...
- 26 Feb 2024 23:01
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
https://i0.wp.com/spacenews.com/wp-content/uploads/2024/01/20240125-4_01_LEV-2-JAXA-cr.jpg?resize=1024%2C648&ssl=1 SLIM lander has survived the lunar night. It responded to commands sent by mission control. My guess is, its upside down orientation with part of the body touching the lunar surfac...
- 23 Feb 2024 05:56
- Forum: Military Issues & History Forum
- Topic: International Aerospace Discussion - Jan 2018
- Replies: 2811
- Views: 1681744
Re: International Aerospace Discussion - Jan 2018
https://www.space.com/intuitive-machine ... r-payloads
IM's Odysseus has landed on rhe moon.
Signal received is weak, could be antenna orientation issu.e .
First US landing after apollo and first private lander on moon.
IM's Odysseus has landed on rhe moon.
Signal received is weak, could be antenna orientation issu.e .
First US landing after apollo and first private lander on moon.
- 06 Dec 2023 19:27
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Chandrayaan-3 Mission: Ch-3 's Propulsion Module (PM) takes a successful detour! In another unique experiment, the PM is brought from Lunar orbit to Earth’s orbit. Although orbiting earth, looks like apogee of PM is quite close to Moon's SoI (Sphere of influence). Interesting they didnt bring it cl...
- 05 Dec 2023 05:54
- Forum: Science, Economics & Technology Forum
- Topic: Indian Space Program: News & Discussion
- Replies: 1042
- Views: 765305
Re: Indian Space Program: News & Discussion
Excellent job ISRO for bringing back the PM. India becomes 4th country to demonstrate breaking free from lunar gravity to re enter earth orbit. My post on 22nd Aug 2023 in CY 3 thread. https://forums.bharat-rakshak.com/viewtopic.php?p=2598146#p2598146 I think the PM alone can be bought back. The Pro...
- 22 Sep 2023 21:30
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Thanks for posting.A Nandy wrote: ↑22 Sep 2023 11:55 https://www.youtube.com/watch?v=ewuV1xx_Nrk
Asianet News ‘Dialogues’ with ISRO Chairman S Somanath
Towards the end at around 35.17 there is mention of human landing on the moon.
The hop experiment was a baby step in that direction.
- 08 Sep 2023 08:58
- Forum: Military Issues & History Forum
- Topic: Artillery Corps: News & Discussion
- Replies: 3253
- Views: 2393918
Re: Artillery Corps: News & Discussion
So, how does ATAGS’s “shoot & scoot” ability compare with the Bofors in service with the IA? I remember it was a key criterion when Bofors was selected There are less than 200 of the original 400 Bofors guns left in service. For the first time we have multiple locally designed and produced alte...
- 05 Sep 2023 21:21
- Forum: Science, Economics & Technology Forum
- Topic: Aditya-L1 (आदित्य -L1): Launch and Discussions
- Replies: 119
- Views: 40546
Re: Aditya-L1 (आदित्य -L1): Launch and Discussions
^^^
Parker solar probe closest approach to sun will be 6.9 million km in 2025.
They will be able to shield the electronics even at such close proximity.
Parker solar probe closest approach to sun will be 6.9 million km in 2025.
They will be able to shield the electronics even at such close proximity.
- 04 Sep 2023 13:10
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Vikram soft-landed again! https://twitter.com/isro/status/1698570774385205621?t=NahcNIZWvh9syahBc5l6mg&s=19 Did we know this was planned? Wow! What a nice surprise. :D :D :D Its indeed a welcome surprise. Was able to lift up by 40 cm. Will give useful insight for thrust required for sample retu...
- 29 Aug 2023 08:24
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
^^^
Luna 25 weighs 1.8 tons with scientific payload of 30 kg.
Beyond earth it was propelled by Fregat space tug which was their equivalent of CH3 propulsion module.
Luna 25 weighs 1.8 tons with scientific payload of 30 kg.
Beyond earth it was propelled by Fregat space tug which was their equivalent of CH3 propulsion module.
- 27 Aug 2023 17:59
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
^^^ SSSalvi Sir, About RHU I dont think the news is credible. If it indeed carried one, the CH3PM needs to have the distinctive radiator fins. None of it was visible. DAE would have been involved from the very begining and safety measures would have different. Such things can't be done hush hush due...
- 23 Aug 2023 20:55
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
- 23 Aug 2023 18:04
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Congratulations ISRO!!!!!
- 23 Aug 2023 17:58
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Altitude is 1 km
- 22 Aug 2023 09:25
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Even more feul would have been left over, if we allowed the cryogenic stage to burn to depletion as was done during CY2. From Wikipedia Finally Chandrayaan-2 was launched on board the LVM3 M1 launch vehicle on 22 July 2019 at 09:13:12 UTC (14:43:12 IST) with a better-than-expected apogee as a result...
- 22 Aug 2023 08:58
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
SSS and other gurus, i was looking at dry mass and wet mass of CY-3, looks like there might be fuel left in PM, how i wish ISRO surprises us with Vikram taking off mating with PM and coming back to earth and crash burning. Hope CY-4 is already being planned for to-fro trip I think the PM alone can ...
- 21 Aug 2023 20:47
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
One side whole India is praying and is with ISRO and at other end is Actor like Prakash Raj mocking ISRO - see his tweet below :evil: While the actor did not specify the man in the cartoon, many social media users slammed the actor for making fun of former Indian Space Research Organisation chief K...
- 20 Aug 2023 17:25
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Regarding Luna 25, hope Kremlin acts professionally and supports Roscosmos to investigate, rectify and relaunch.
Kinzhal aftermath treason incidents shouldn't be repeated.
Kinzhal aftermath treason incidents shouldn't be repeated.
- 10 Aug 2023 11:10
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
^^^
ISRO's semi cryo is staged combustion cycle, which is far more difficult to master.
Agnikul might be using gas generator I guess. Their chamber pressure is only 10 bar
ISRO's semi cryo is staged combustion cycle, which is far more difficult to master.
Agnikul might be using gas generator I guess. Their chamber pressure is only 10 bar
- 30 Jul 2023 07:26
- Forum: Science, Economics & Technology Forum
- Topic: Indian Space Program: News & Discussion
- Replies: 1042
- Views: 765305
Re: Indian Space Program: News & Discussion
https://www.financialexpress.com/lifest ... s/3192307/
PSLV successfully launched DSSAR and other 6 satellites.
PSLV successfully launched DSSAR and other 6 satellites.
- 25 Jul 2023 16:05
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
5th orbit raising maneovure done
https://twitter.com/isro/status/1683767 ... gr%5Etweet
Orbit expected to be 127609 km x 236 km.
Aug 1 will be TLI firing
https://twitter.com/isro/status/1683767 ... gr%5Etweet
Orbit expected to be 127609 km x 236 km.
Aug 1 will be TLI firing
- 24 Jul 2023 07:29
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Amber G, the quoted part in your above post is written by sanman. SSSalvi missed the "quote" while quoting him so its seen as a continuos post.
- 22 Jul 2023 09:20
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
In case of Earth-Moon pair The L1 distance from earth centre is 323050 Kms.( 316672 kms above Earth. ) For TLI orbit Apogee is 362000 kms, way beyond L1. Moon is away when CH3 is in the Apogee. In fact the CH3 is moving away from Moon initially. But its speed is more so it comes towrds CH3. As time...
- 18 Jul 2023 18:57
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
- 18 Jul 2023 17:53
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
3rd orbit raising maneovure performed successfully as per ISRO.
https://twitter.com/isro/status/1681236 ... 74850?s=20
https://twitter.com/isro/status/1681236 ... 74850?s=20
- 16 Jul 2023 22:28
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
https://m.timesofindia.com/home/science ... 804633.cms
2nd orbit raising maneovure done.
Perigee at 220 km and will remain there for next three orbit maneovure.
2nd orbit raising maneovure done.
Perigee at 220 km and will remain there for next three orbit maneovure.
- 16 Jul 2023 07:25
- Forum: Military Issues & History Forum
- Topic: VayuSena Rafale: News and Discussions - 17 Oct 2016
- Replies: 4661
- Views: 1594598
Re: VayuSena Rafale: News and Discussions - 17 Oct 2016
^^^
Younger Ambani's streak of turning to dust anything he touches continues.....
Younger Ambani's streak of turning to dust anything he touches continues.....
- 15 Jul 2023 23:49
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
https://www.livemint.com/news/india/chandrayaan3-launch-live-updates-india-moon-mission-isro-sriharikota-news-isro-india-space-isro-live-11689296703954.html First orbit raising maneovure done. ISRO Scientists at the Indian Space Research Organisation have performed the first orbit raising manoeuvre ...
- 14 Jul 2023 15:12
- Forum: Science, Economics & Technology Forum
- Topic: Chandrayaan 3: Launch and Discussions
- Replies: 1355
- Views: 922160
Re: Chandrayaan 3: Launch and Discussions
Congratulations ISRO!!
- 26 May 2023 09:09
- Forum: Military Issues & History Forum
- Topic: International Aerospace Discussion - Jan 2018
- Replies: 2811
- Views: 1681744
Re: International Aerospace Discussion - Jan 2018
^^^ So the new owner of Cosmic girl B747 is Stratolaunch. They already own the six engined beast which can air launch heavier loads. $17 million is approx Rs 140 crores. Less than the cost of prime real estate govt owns in mumbai or delhi. We should have taken a shot at owning it considering it was ...
- 04 May 2023 22:38
- Forum: Military Issues & History Forum
- Topic: International Aerospace Discussion - Jan 2018
- Replies: 2811
- Views: 1681744
Re: International Aerospace Discussion - Jan 2018
https://spaceq.ca/ispace-provides-a-clue-on-fate-of-the-hakuto-r-mission-1-lunar-lander/ Some info on Hakuto lander final moments before crashing on the moon. ispace also stated that they “confirmed that the lander was in a vertical position as it carried out the final approach to the lunar surface....
- 30 Apr 2023 19:02
- Forum: Military Issues & History Forum
- Topic: Russian-Ukranian War: Geopolitical Fallout
- Replies: 2774
- Views: 706785
Re: Russian-Ukranian War: Geopolitical Fallout
^^^
They morphed Goddess Kali into a distasteful cartoon in
a mushroom cloud.
They morphed Goddess Kali into a distasteful cartoon in
a mushroom cloud.
- 26 Apr 2023 08:54
- Forum: Military Issues & History Forum
- Topic: International Aerospace Discussion - Jan 2018
- Replies: 2811
- Views: 1681744
Re: International Aerospace Discussion - Jan 2018
Japanese start up ispace has lost contact with Hakuto lander. Looks like it had a hard landing in its attempt to land yesterday. My guess is it could not get the transition from horizontal to vertical position correctly. Similar to what Vikram lander experienced. There is some trick of trade to get ...
- 25 Apr 2023 19:47
- Forum: Military Issues & History Forum
- Topic: International Aerospace Discussion - Jan 2018
- Replies: 2811
- Views: 1681744
Re: International Aerospace Discussion - Jan 2018
https://www.reuters.com/technology/space/japans-ispace-prepares-worlds-first-commercial-lunar-landing-2023-04-25/ TOKYO, April 25 (Reuters) - Japanese startup ispace inc (9348.T) is preparing to land its Hakuto-R Mission 1 (M1) spacecraft on the moon early on Wednesday, in what would be the world's ...
- 02 Apr 2023 13:06
- Forum: Science, Economics & Technology Forum
- Topic: Indian Space Program: News & Discussion
- Replies: 1042
- Views: 765305
Re: Indian Space Program: News & Discussion
Could be absence of shimy damper in nose wheel.Neela wrote:
Towards the end of the video , as the aircraft came to stop, there were balance issues after two distinct brake events c.
- 22 Mar 2023 20:48
- Forum: Military Issues & History Forum
- Topic: INS Vikrant: News and Discussion
- Replies: 3269
- Views: 842310
Re: INS Vikrant: News and Discussion
Nice, Mig 29 had earlier raced with Ferrari in Goa. It was covered in the 2018 issue of Auto car.
- 07 Mar 2023 13:43
- Forum: Science, Economics & Technology Forum
- Topic: Indian Space Program: News & Discussion
- Replies: 1042
- Views: 765305
Re: Indian Space Program: News & Discussion
^^^
Very informative. Thanks for sharing.
Good info on how IMU's were in the sixties.
Everything now is chip based and is far easier to configure.
More reliable than Mechanical gyroscopes that suffer from gimbal lock issues.
Very informative. Thanks for sharing.
Good info on how IMU's were in the sixties.
Everything now is chip based and is far easier to configure.
More reliable than Mechanical gyroscopes that suffer from gimbal lock issues.
- 01 Mar 2023 22:33
- Forum: Military Issues & History Forum
- Topic: Military Flight Safety
- Replies: 3363
- Views: 908545
Re: Military Flight Safety
https://swarajyamag.com/defence/mirage-2000-su-30-mki-mid-air-collision-initial-findings-of-investigation-into-the-accident-submitted-to-air-force The findings of the Court of Inquiry (CoI) of a mid-air collision between two Indian Air Force (IAF) fighter jets, a SU-30MKI and a Mirage-2000, will be ...
- 24 Feb 2023 07:10
- Forum: Military Issues & History Forum
- Topic: Project 75I - It Begins
- Replies: 1851
- Views: 601336
Re: Project 75I - It Begins
^^^ From the article, looks like South Korea's bid is facing a legal challenge from TKMS over design copy issue. Brilliant move to scuttle them in the final lap for re-entering the contest. Its close to 10 years since this thread started, even paperwork is not in place. Designing own submarine from ...
- 10 Feb 2023 09:46
- Forum: Science, Economics & Technology Forum
- Topic: Indian Space Program: News & Discussion
- Replies: 1042
- Views: 765305
Re: Indian Space Program: News & Discussion
All fixes worked as planned. Mission accomplished.