SpaceX F9 : Starlink group 6-86 : KSC LC-39A : 1 December 2025 (07:44 UTC)

[Galactic Penguin SST]

Thread for the Starlink Group 6-86 launch.

Launch 1 December 2025, at 07:44:10 UTC (2:44 am EST), from KSC LC-39A, on booster 1095-4. The first stage has landed aboard Just Read The Instructions.

Payload 29 Starlink V2.0 Mini satellites, to a 43.00 degrees inclination orbit on a southeastern trajectory.  Initial orbit 258 x 269 km.

Please use the Starlink Discussion Thread for all general discussion on Starlink.

Check the Starlink Index Thread for links to more Starlink information.


L2 SpaceX: https://forum.nasaspaceflight.com/index.php?board=60.0

[Galactic Penguin SST]

From CADENA OIS: (KSC is written in the attached document as the launch site)

Primary Launch Day NOV 30 2011Z-0054Z Backup Launch Day DEC 01 1945Z-0028Z Backup Launch Day DEC 02 1919Z-0002Z Backup Launch Day DEC 03 1853Z-2336Z Backup Launch Day DEC 04 1827Z-2310Z Backup Launch Day DEC 05 1801Z-2244Z Backup Launch Day DEC 06 1735Z-2218Z

[AndrewM]

Ben Cooper is also showing this as 39A as of November 22.

The next SpaceX Falcon 9 rocket will launch a Starlink batch from pad 39A on November 30 at 3:11-7:11 p.m. EST.

It's also on the FAA advisory now.

[Galactic Penguin SST]

Per CADENA OIS, this launch has switched to a post-midnight launch window:

Primary Launch Day DEC 01 0500Z-0943Z Backup Launch Day DEC 02 0500Z-0943Z Backup Launch Day DEC 03 0500Z-0943Z Backup Launch Day DEC 04 0500Z-0943Z Backup Launch Day DEC 05 0500Z-0943Z Backup Launch Day DEC 06 0500Z-0943Z Backup Launch Day DEC 07 0500Z-0943Z

[Galactic Penguin SST]

https://www.spacex.com/launches/sl-6-86

SpaceX’s Falcon 9 is targeting the launch of 29 Starlink satellites to low-Earth orbit from Launch Complex 39A (LC-39A) at NASA's Kennedy Space Center in Florida.

A live webcast of this mission will begin about five minutes prior to liftoff, which you can watch here and on X @SpaceX. You can also watch the webcast on the X TV app.

This will be the fourth flight for the first stage booster supporting this mission, which previously launched three Starlink missions. Following stage separation, the first stage will land on the Just Read the Instructions droneship, which will be stationed in the Atlantic Ocean.

[Steven Pietrobon]

PDF of online press kit.

[zubenelgenubi]

https://celestrak.org/NORAD/elements/supplemental/
Supplemental GP Element Sets
Current as of 2025 Nov 28 06:47:20 UTC (Day 332)

Starlink G6-86 Pre-Launch   
Derived from a pre-launch Starlink-G6-86 state vector, provided by SpaceX. SupGP data is provided for the entire stack, as well as one for a single satellite.

Launch: 2025-12-01 05:00:30 UTC.
Deploy: 2025-12-01 06:05:32.880 UTC.
Launch window: 2025-12-01 05:00:30 UTC to 2025-12-01 05:03:09 UTC.

Backup Launch Opportunity #1   
Launch: 2025-12-01 05:03:10 UTC.
Deploy: 2025-12-01 06:08:12.880 UTC.
Launch window: 2025-12-01 05:03:10 UTC to 2025-12-01 05:17:19 UTC.

Backup Launch Opportunity #2   
Launch: 2025-12-01 05:17:20 UTC.
Deploy: 2025-12-01 06:22:22.880 UTC.
Launch window: 2025-12-01 05:17:20 UTC to 2025-12-01 05:31:19 UTC.

Backup Launch Opportunity #3   
Launch: 2025-12-01 06:09:10 UTC.
Deploy: 2025-12-01 07:14:12.880 UTC.
Launch window: 2025-12-01 06:09:10 UTC to 2025-12-01 06:10:59 UTC.

Backup Launch Opportunity #4   
Launch: 2025-12-01 06:17:50 UTC.
Deploy: 2025-12-01 07:22:52.880 UTC.
Launch window: 2025-12-01 06:17:50 UTC to 2025-12-01 06:19:09 UTC.

Backup Launch Opportunity #5   
Launch: 2025-12-01 06:36:00 UTC.
Deploy: 2025-12-01 07:41:02.880 UTC.
Launch window: 2025-12-01 06:36:00 UTC to 2025-12-01 06:42:59 UTC.

Backup Launch Opportunity #6   
Launch: 2025-12-01 06:43:00 UTC.
Deploy: 2025-12-01 07:48:02.880 UTC.
Launch window: 2025-12-01 06:43:00 UTC to 2025-12-01 06:57:19 UTC.

Backup Launch Opportunity #7   
Launch: 2025-12-01 06:57:20 UTC.
Deploy: 2025-12-01 08:02:22.880 UTC.
Launch window: 2025-12-01 06:57:20 UTC to 2025-12-01 07:02:59 UTC.

Backup Launch Opportunity #8   
Launch: 2025-12-01 07:09:00 UTC.
Deploy: 2025-12-01 08:14:02.880 UTC.
Launch window: 2025-12-01 07:09:00 UTC to 2025-12-01 07:09:29 UTC.

Backup Launch Opportunity #9   
Launch: 2025-12-01 07:44:10 UTC.
Deploy: 2025-12-01 08:49:12.880 UTC.
Launch window: 2025-12-01 07:44:10 UTC to 2025-12-01 07:46:19 UTC.

Backup Launch Opportunity #10   
Launch: 2025-12-01 07:51:50 UTC.
Deploy: 2025-12-01 08:56:52.880 UTC.
Launch window: 2025-12-01 07:51:50 UTC to 2025-12-01 07:54:29 UTC.

Backup Launch Opportunity #11   
Launch: 2025-12-01 07:54:30 UTC.
Deploy: 2025-12-01 08:59:32.880 UTC.
Launch window: 2025-12-01 07:54:30 UTC to 2025-12-01 07:56:39 UTC.

Backup Launch Opportunity #12   
Launch: 2025-12-01 08:12:40 UTC.
Deploy: 2025-12-01 09:17:42.880 UTC.
Launch window: 2025-12-01 08:12:40 UTC to 2025-12-01 08:22:59 UTC.

Backup Launch Opportunity #13   
Launch: 2025-12-01 08:23:00 UTC.
Deploy: 2025-12-01 09:28:02.880 UTC.
Launch window: 2025-12-01 08:23:00 UTC to 2025-12-01 08:36:49 UTC.

Backup Launch Opportunity #14   
Launch: 2025-12-01 08:42:40 UTC.
Deploy: 2025-12-01 09:47:42.880 UTC.
Launch window: 2025-12-01 08:42:40 UTC to 2025-12-01 08:46:09 UTC.

https://celestrak.org/NORAD/elements/supplemental/table.php?FILE=starlink-g6-86&FORMAT=tle
Pre-Launch Derived Orbit:
258 km x 269 km x 43.00 deg

[catdlr]

NSF provided a stream link

Here is a consolidated post of available video links for this launch:

SpaceX's direct live broadcast on
Website: https://www.spacex.com/launches/sl-6-86
 Twitter:  https://x.com/i/broadcasts/1yNxabknEvRKj

NSF Live Coverage:  https://youtube.com/watch?v=xc23FchmmTQ

SpaceX Re-broadcast alternatives on YouTube:
Space Affairs:  https://youtube.com/watch?v=GU_QjtGn8b8

Replay supplied by The Space Devs (15 min after the broadcast end):  https://youtube.com/@thespacedevs/videos

Summary Video provided by SciNews (15 min after the broadcast ends):  https://youtube.com/@SciNewsRo/videos

Post Launch Extras:

CelesTrak has ephemeris-based SupGP data: https://celestrak.org/NORAD/elements/supplemental/
Max-Qproductions by Pete Carstens: https://www.youtube.com/@maxqproductions1

[catdlr]

We are currently at:

Backup Launch Opportunity #9   
Launch: 2025-12-01 07:44:10 UTC.
Deploy: 2025-12-01 08:49:12.880 UTC.
Launch window: 2025-12-01 07:44:10 UTC to 2025-12-01 07:46:19 UTC.

[catdlr]

NSF has started its launch coverage

https://twitter.com/i/broadcasts/1lPKqvnqjjWGb

https://youtube.com/watch?v=xc23FchmmTQ

[catdlr]

Booster Information

[catdlr]

Under T-52 min, very little wind, some fog.  There is no published Weather Probability Notice issued.

[catdlr]

Current Timeline for this flight

[catdlr]

The LD should have given the go-ahead to load propellants.

[catdlr]

Launch Trajectory

[catdlr]

Booster Flight History

[catdlr]

Big Vent has started - LOX Chill down.

[catdlr]

Biog Vent has ended - LOX Loading has started.

[catdlr]

Payload Facts

[catdlr]

https://x.com/BoosterTracker/status/1995394728263905497

Booster Tracker
@BoosterTracker

Starlink Group 6-86 will mark SpaceX's fastest turnaround of B1095 to date at 45 days, 22 hours, and 17 minutes and 200th consecutive landing of a Falcon booster.