Welcome to the c/spaceflight Gaganyaan TV-D1 In-flight Abort Test Official Launch Discussion & Updates Thread!
| Scheduled for (UTC) | 2023-10-21 04:30 |
|---|---|
| Scheduled for (local) | 2023-10-21 10:00 (IST) |
| Launch site | First Launch Pad, Satish Dhawan Space Centre, India |
| Launch vehicle | modified GSLV L40 |
| Payload | Gaganyaan Test Vehicle |
| Mission success criteria | Successful test of crew escape system and splashdown of capsule |
Livestreams
| Stream | Link |
|---|---|
| ISRO | https://www.youtube.com/watch?v=To9_pBpLyP0 |
| Gareeb Scientist | https://www.youtube.com/watch?v=mU6k5fsGkLw |
Stats
☑️ 3rd launch of a Gaganyaan test vehicle
☑️ 1st Gaganyaan launch this year
☑️ 8th ISRO launch this year
Mission Info
Official ISRO page
Next Spaceflight
India’s ISRO will conduct an in-flight abort test of its future Gaganyaan crew spacecraft, boosted by a modified GSLV Mk. II liquid fuel booster. The test will ensure that the capsule can safely carry crew away from the launch vehicle in the event of an anomaly.
NSF article
For this flight, an uncrewed Gaganyaan test capsule is to be mounted atop a single L40 booster, derived from the strap-on boosters used on the GSLV Mk. 2 launch vehicle. The rocket carrying the capsule is scheduled to fly to an altitude of around 11 – 17 kilometers before a test abort is called.
Afterward, the launch escape system will be tested, and if all goes as planned, the unpressurized capsule will descend under parachutes to a splashdown in the Bay of Bengal, 10 kilometers from the Sriharikota launch site. This flight will be the first test flight before a crewed launch, with the immediate next step being another abort test, followed by an uncrewed flight of the full vehicle, in the coming months.
| Target apogee | 17 km |
|---|---|
| Splashdown location | Bay of Bengal |
| Payload mass | 4520 kg |
Please post small launch updates, discussions, and questions here! Also feel free to leave feedback or suggestions for the mod team. We’re still a relatively small sub, so feedback from the community is very valuable!
Ignition… and hold. :(
Edit: The engines lit, but no liftoff took place.
Edit2: Vehicle is safe. Onboard launch computer triggered the hold. Cause is currently unknown. They will review the data and try again
at a later date.Edit3: Or they will try again the same day!
Wow, that was fast!
https://nitter.net/isro/status/1715580002601996288#m
Reason for the launch hold is identified and corrected.
The launch is planned at 10:00 Hrs. today.
They’re going to try again! New T-0 is 04:30 UTC (10:00 IST).
Test vehicle separation confirmed!
Drogue chutes deployed!
Liftoff!
Finally found a stream! https://www.youtube.com/watch?v=mU6k5fsGkLw
T-1 minute, but still no official webcast from ISRO…
Crew module separation!
Main chutes deployed!
Splashdown!
Total mission success: https://nitter.net/isro/status/1715590345340432519#m
Mission Gaganyaan
TV D1 Test Flight is accomplished.
Crew Escape System performed as intended.
Mission Gaganyaan gets off on a successful note.
Update on previous hold provided by Sreedhara Somanath:
[paraphrased] The previous hold was issued by the ground computer which detected a “non-conformance” which triggered engine shutdown. This was due to a “monitoring anomaly” which was identified and corrected.
The wide capsule on a skinny booster is giving me Ares I vibes…
T-2 minutes.
Webcast is live! https://www.youtube.com/watch?v=BMig6ZpqrIs
https://nitter.net/isro/status/1715559655600996416#m
The countdown is held at -30 minutes.
Will update once it is released.
They are holding the launch countdown at T-30 minutes.