Sentinel-3C & FLEX
Vega-C. Ariane Launch Area 1 (ELV), Guiana Space Centre, French Guiana.
Launch Successful
- Recovery
- None Reported
- Your Time
- UTC
- At the Pad
Sentinel-3C & FLEX
ESA/CNES/Arianespace
Mission
Earth Science, Sun-Synchronous Orbit
Sentinel-3C is the third satellite in the Sentinel-3 constellation, which provides high-accuracy optical, radar and altimetry data for marine and land services. The Fluorescence Explorer (FLEX) satellite is a part of ESA's Earth Explorer program. The satellite will map vegetation fluorescence to quantify photosynthetic activity.
Countdown Sequence
Planned offsets from T-0; confirmations link to their sources
Sequence Ended · Success
- T+00:00:00
- T+00:02:27
Stage 2 Separation
Separation of the second stage from the first
Planned Time Elapsed
- T+00:02:28
SES
Start of the second engine
Planned Time Elapsed
- T+00:04:32
Stage 3 Separation
Separation of the third stage from the second
Planned Time Elapsed
- T+00:04:39
Stage 3 Ignition
Third stage engine ignites.
Planned Time Elapsed
- T+00:04:44
Fairing Separation
Separation of the payload fairing
Planned Time Elapsed
- T+00:07:11
Kick Stage Separation
Separation of the kick stage from the previous stage
Planned Time Elapsed
- T+00:08:23
Kick Stage Ignition
Start of the kick stage engine
Planned Time Elapsed
- T+00:17:06
Kick Stage Cut-off
Cut-off of the kick stage engine
Planned Time Elapsed
- T+00:55:29
Kick Stage Ignition
Start of the kick stage engine
Planned Time Elapsed
- T+00:58:30
Kick Stage Cut-off
Cut-off of the kick stage engine
Planned Time Elapsed
- T+01:00:50
Payload Separation
Final deployment of the payload from the rocket
Planned Time Elapsed
- T+01:46:19
Kick Stage Ignition
Start of the kick stage engine
Planned Time Elapsed
- T+01:46:49
Kick Stage Cut-off
Cut-off of the kick stage engine
Planned Time Elapsed
- T+01:54:32
Kick Stage Ignition
Start of the kick stage engine
Planned Time Elapsed
- T+01:54:58
Kick Stage Cut-off
Cut-off of the kick stage engine
Planned Time Elapsed
- T+01:56:03
Payload Separation
Final deployment of the payload from the rocket
Planned Time Elapsed
- T+02:23:32
Kick Stage Ignition
Start of the kick stage engine
Planned Time Elapsed
- T+02:24:58
Kick Stage Cut-off
Cut-off of the kick stage engine
Planned Time Elapsed
Change Log
Detected changes and source updates
Both satellites successfully deployed and signals acquired from both.
Liftoff.
Official Webcast by Avio SpA has started
GO for launch on September 15 UTC.
NET September 11
NET September 9.
NET September 1st, together with FLEX.
NET October 2026
NET September 2026. (see 02:17:55 mark)
NET June 2026
NET 2026
NET Q1 2025.
Adding launch NET October 2024