Success
BlueBird Block 2 #1
Communications
Indian Space Research Organization(ISRO)Government
Launch Vehicle Mark-3 (GSLV Mk III)
LEOorbit
AST SpaceMobile’s Block 2 BlueBird satellites are designed to deliver up to 10 times the bandwidth capacity of the BlueBird Block 1 satellites, required to achieve 24/7 continuous cellular broadband service coverage in the United States, with beams designed to support a capacity of up to 40 MHz, enabling peak data transmission speeds up to 120 Mbps, supporting voice, full data and video applications. The Block 2 BlueBirds, featuring as large as 2400 square foot communications arrays, will be the largest satellites ever commercially deployed in Low Earth orbit once launched. This launch will feature a single satellite.
Wednesday, December 24, 2025 at 3:25 AM
Replay
Flight Timeline
- T+00:00Booster Ignition
- T+01:46Ignition
- T+02:12SRB Separation
- T+02:54Fairing Separation
- T+05:02Stage 2 Separation
- T+05:04SES
- T+15:39SECO
- T+15:43Payload Separation
Links
Mission details
Orbital Attempt
#7,167
ISRO Mission
#98
Pad Launch
#32
Location Launch
#102
Designator
2025-309
Launch Window
NET
Dec 24, 2025, 3:25 AM
Precision
Second
Schedule Changes
1 update
Launch Vehicle Mark-3 (GSLV Mk III) Specs
The Launch Vehicle Mark-3 (LVM-3), previously called Geosynchronous Satellite Launch Vehicle Mark III (GSLV Mk III), is a three-stage medium-lift launch vehicle developed by the Indian Space Research Organisation (ISRO). It is designed to launch satellites into geostationary orbit, and is intended as a launch vehicle for crewed missions under the Indian Human Spaceflight Programme.
Length
43.4 m
Diameter
4 m
Launch Mass
629 t
Thrust
11,898 kN
LEO Capacity
10,000 kg
GTO Capacity
5,000 kg
Launch Cost
$46M
Reusable
No
Maiden Flight
2014
Fastest Turnaround
1mo 21d
Total Launches
9
Successful
9
Failed
0
Consecutive Success
9
Maiden flight: Dec 18, 2014
Social Flight Log
- Dec 24, 2025, 5:22 AM
Satellite in contact.
Source - Dec 24, 2025, 3:43 AM
Spacecraft separation.
Source - Dec 24, 2025, 3:26 AM
Official Webcast by ISRO Official has started
Source - Dec 24, 2025, 3:25 AM
Liftoff.
Source - Dec 24, 2025, 2:55 AM
Official Webcast by ISRO Official has started
Source - Dec 24, 2025, 1:24 AM
Tweaked T-0.
Source - Dec 18, 2025, 12:34 PM
Adding T-0 and setting GO
Source - Dec 16, 2025, 3:11 AM
Delayed to NET December 24.
Source - Dec 13, 2025, 9:45 PM
Delayed to December 21.
Source - Dec 8, 2025, 2:27 PM
Rescheduled for NET December 20 per new NOTAMs.
Source - Nov 26, 2025, 1:51 PM
Added tentative launch window.
Source - Nov 21, 2025, 1:13 PM
NET December 15.
Source - Oct 23, 2025, 1:38 PM
NET early December.
Source - Aug 1, 2025, 6:20 PM
NET Q4 2025.
Source - Jul 2, 2025, 10:51 AM
NET August.
Source - Apr 18, 2025, 4:08 PM
NET July.
Source - Mar 18, 2025, 10:06 PM
NET May.
Source - Feb 21, 2025, 7:49 AM
NET Q2.
Source - Jan 10, 2025, 10:02 AM
NET March.
Source - Nov 15, 2024, 1:26 PM
Fixed rocket variant.
Source - Nov 15, 2024, 7:19 AM
Added launch.
Source
Satish Dhawan Space Centre Second Launch Pad
The second launch pad was built between 1999 and 2003. It became functional in 2005 and has since been used for various rockets. This launch pad supports missions by PSLV, GSLV, LVM3 rockets and is even envisioned for India's future crewed spaceflight.
Total Launches
32
Orbital Attempts
31
Fastest Turnaround
1mo 1d
Indian Space Research Organization
The Indian Space Research Organisation (ISRO) is the space agency of the Government of India headquartered in the city of Bangalore. Its vision is to "harness space technology for national development while pursuing space science research and planetary exploration."
Founded
1969
Administrator
Chairman: V. Narayanan
Total Launches
99
Successful
84
Failed
15
Pending
17
Consecutive Success
0
Satish Dhawan Space Centre, India
Satish Dhawan Space Centre – SDSC (formerly Sriharikota Range – SHAR),[1] is the primary spaceport of the Indian Space Research Organisation (ISRO), located in Sriharikota, Andhra Pradesh.
Timezone
Asia/Kolkata
Local Launch Time
Dec 24, 2025, 8:55 AM
Total Launches
103
Total Landings
0
Coordinates
13.7200, 80.2300