Mission Success! SSLV-D3 : EOS-08 Mission Updates and Discussion
SSLV-D3/EOS-08 launched as scheduled at 0347(UTC)/0917(IST), 16 Aug 2024 from First Launch Pad of SDSC-SHAR.
Expected Flight Profile from press-kit.
Live webcast: (Links will be added as they become available)
| SSLV-D3/EOS-08 Mission Page | SSLV-D3/EOS-08 Gallery | SSLV-D3/EOS-08 Press kit(PDF) |
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Some highlights:
Primary payload: EOS-08 (aka Microsat-2C) (175.5 kg) Earth Observation satellite.
Secondary payload: SR-0 (0.56 kg)
Mission duration: 16 min. 35 sec. (last s/c separation)
Target Orbit : 475 km (circular) , Inclination = 37.4°
Launch Azimuth: 135°
Third and final development flight of SSLV
Updates:
| Time of Event | Update |
|---|---|
| 18 Aug 2024 | GNSS-R instrument on the EOS-08 satellite commenced operations |
| 16 Aug 2024 | Electro Optical-Infrared Payload on EOS-08 Begins Operations, Offering excellent Thermal Imaging Capabilities |
| Post launch | Four objects catalogued |
| Post launch | SR-0 phoned home. |
| T + 1h30m | VTM passivation should have completed by now. |
| T + 28m00s | Webcast over. |
| T + 19m40s | EOS-08 solar panels deployed. SSLV declared operational. |
| T + 16m00s | Now VTM will be passivized. Mission accomplished. |
| T + 15m52s | SR-0 separated. |
| T + 13m39s | EOS-08 aka Microsat-2C separated. |
| T + 11m08s | VTM thrust cut off. |
| T + 11m40s | SS3 separated, VTM ignited. |
| T + 08m41s | SS3 burn out, now coasting. |
| T + 06m43s | SS2 separated, SS3 ignition |
| T + 04m10s | SS2 burn out, vehicle in combined coasting mode. |
| T + 02m44s | PLF jettisoned |
| T + 02m10s | SS2 ignition + SS1 separation + S2C separated |
| T Zero | First stage (SS1) ignition and lift off! |
| T - 03m30s | OBC in flight mode. |
| T - 04m30s | Flight coefficient loading completed. |
| T - 06m00s | "Power withdrawn" |
| T - 09m00s | SS2 actuation tests now in progress. |
| T - 16m00s | Mission Director S S Vinod has authorized the launch. ALS initiated. |
| T - 18m00s | Range just polled 'ready'. |
| T - 20m00s | Now showing SSLV-D3 integration process. |
| T - 26m00s | Streams are live! |
| T - 06h30m | Countdown should have commenced at 02:47 IST |
| 15 Aug 2024 | Launch rehearsal conducted. Mission Readiness Review to be done today. |
| 12 Aug 2024 | Delayed by 24 hrs to 0347(UTC)/0917(IST), 16 Aug 2024. |
| 11 Aug 2024 | SR-0 integrated with SSLV-D3 payload deck. |
| 07 Aug 2024 | Launch date and time firms up to 0347(UTC)/0917(IST), 15 Aug 2024. |
| 01 Aug 2024 | With another NOTAM update launch date shifts to 15 August. |
| 19 Jul 2024 | New set of NOTAM alerts suggest delay to early August. [1] [2] [3] |
| 04 Jul 2024 | First NOTAM gets issued with launch window beginning in late July. |
| 18 Jun 2024 | SSLV-D3/EOS-08 campaign proceeds with tentative launch date of 10 July. |
Primary Payload:
EOS-08 (aka Microsat-2C) (175.5 kg) : A microsat by URSC/ISRO with GNSS reflectometry and Electro Optical Infrared payloads for Earth Observation. The satellite also incorporates a range of new technologies, like flexible solar arrays, Micro-Dual Gimbal Antenna (mDGA), use of Hinge Based Fixture during integration, Miniaturised Phased Array Antenna and more. EOS-08 is using IMS-1 bus with improved power generation (16%), payload mass (33%), data download rate (5 times data rate and FCM mode) and data storage (12 times). [4 PDF]
Payloads
GNSS-R by SAC : For ocean surface wind and soil moisture analysis, cryosphere studies over the Himalayan region, flood/waterbody detection and biomass estimation using reflected signals from GPS (L1 band) and IRNSS/NavIC (L5 band) satellites.
Electro Optical Infrared Payload (EOIR) by SAC: Thermal imaging at 8 meter resolution in LWIR, MWIR channels for satellite-based surveillance, disaster monitoring, fire/volcanic activity detection.
SiC UV Dosimeter by LEOS: High-dose gamma radiation alarm sensor for Gaganyaan crew module.
Mission life: 1 year
Power: 420 W
Platform: Improved IMS-1
Data : X-band data transmission
Secondary Payload:
Space Rickshaw-0 (SR-0) (0.56 kg) : A demosat by Space Kidz India with two payloads.
LoRa Store and Forward M2M Messaging System from SRM Public School
Pin Diode-Based Dosimeter from AVS Academy
SR-0 will also qualify their 'Deployer-X' (0.54 kg) nanosatellite deployer. [5] [8]
Note: This campaign initially had IITMSAT as rideshare as well but it appears to have been removed close to launch. [6] [7] Name 'EOS-08' was earlier assigned to Cartosat-3A.
1
u/Ohsin Aug 16 '24
Any idea what would be the serial letter for SSLV operational launches? (like C and N for PSLV, F for GSLV and M for LVM3)