Author Topic: SpaceX F9 : Starlink group 15-4 : VSFB SLC-4E : 12/13 May 2025 (01:15 UTC) (Read 5269 times)

Galactic Penguin SST · « **on:** 05/01/2025 07:21 pm »

Thread for the Starlink Group 15-4 launch.

Launch NET 13 May 2025, at 01:15:10 UTC (12 May 6:15 pm PDT), from Vandenberg SLC-4E, on booster 1088-6. The first stage successfully landed aboard Of Course I Still Love You.

Payload 26 Starlink V2.0 Mini satellites, to a 70.01 degree inclination orbit on a southeastern trajectory. Initial orbit 267 x 279 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 · « **Reply #1 on:** 05/01/2025 07:22 pm »

Marine navigation warnings from https://www.navcen.uscg.gov/msi:

Sector Los Angeles, Territorial Sea - San Nicolas Island / General / Safety Zones / Space Launches & Recovery DISTRICT: 11 TITLE: Sector Los Angeles, Territorial Sea - San Nicolas Island / General / Safety Zones / Space Launches & Recovery SUB CATEGORY: Safety Zones TYPE: Space Launches & Recovery WATERWAY NAME: San Nicolas Island DESCRIPTION: Hazardous operations will be conducted for Space X g15-4 launch operations from 5:38PM (PDT) on 09 May, 2025 until 9:38PM (PDT) on 15 May, 2025. Hazardous operation areas are bounded by the following coordinates: Hazard Area A: 34.65000 N, -120.65000 W 34.53333 N, -120.63333 W 33.28333 N, -119.56666 W 32.75000 N, -119.26666 W 32.43333 N, -119.01666 W 32.43333 N, -118.98333 W 33.31666 N, -119.45000 W 34.68333 N, -120.40000 W 34.65000 N, -120.65000 W (TO BEGINNING) Hazard Area B: 29.06666 N, -117.45000 W 29.40000 N, -117.80000 W 30.41666 N, -117.93333 W 29.73333 N, -117.05000 W 29.25000 N, -116.98333 W 29.06666 N, -117.45000 W (TO BEGINNING) Mariners are requested to remain clear of these areas for the duration of operations. For more details or comments contact Space-X at [email protected] or on VHF-FM Chan, 6 or 16. DECIMAL LONGITUDE: null DECIMAL LATITUDE: null

Galactic Penguin SST · « **Reply #2 on:** 05/03/2025 03:35 am »

And in NOTAMs:

B0658/25 NOTAMN Q) MMFR/QRDCA/IV/BO/W/000/999/ A) MMFR B) 2505100038 C) 2505160428 D) 10 0038-0506, 11 0024-0452, 12 0010-0438, 13-16 0000-0428 E) DANGEROUS AREA FOR REENTRY OF ROCKET STARLINK 15-4 STAGE 1 LATERAL LIMIT AREA FORMED BY THE UNION OF THE FLW POINTS: 29 04N 117 27W 29 24N 117 48W 30 25N 117 56W 29 44N 117 03W 29 15N 116 59W 29 04N 117 27W MMFR F) SFC G) UNL

A0557/25 NOTAMN Q) NTTT/QRDCA/IV/BO/W/000/999/2900S12122W100 A) NTTT B) 2505100225 C) 2505160625 D) 10 0225-0703, 11 0211-0649, 12 0157-0635, 13 0147-0625, 14 0147-0625, 15 0147-0625, 16 0147-0625 E) TEMPORARY DANGEROUS AREA DUE TO ATMOSPHERIC RE-ENTRY SPACEX STARLINK 15-4 UPPER STAGE IN TAHITI FIR WITHIN AN AREA BOUNDED BY FOLLOWING POINTS: 2759S 12244W - 2709S 12043W - 2843S 12000W - 3000S 12000W - 3000S 12153W - 2759S 12244W THIS ACTIVITY IMPACTS KZAK, MMFO, SCIZ AND NO FIR AS WELL. AIRSPACE USERS ARE ADVISED OF THE PARTICULARLY DANGEROUS NATURE OF THE ACTIVITY AND ARE STRONGLY INVITED TO AVOID THE AREA DURING THE ACTIVITY TIME SLOT. OPERATORS ARE INVITED TO FILE THEIR FLIGHT PLAN WITH A TRAJECTORY THAT ENSURES THAT THE AREA IS CIRCUMNAVIGATED. THE FRENCH VERSION OF THIS NOTAM IS C1059/25. F) SFC G) UNL

zubenelgenubi · « **Reply #3 on:** 05/04/2025 07:42 am »

Near-term SLC-4E schedule, UTC date:

NROL-145 Apr 20 OCISLY ✅️

Starlink 11-9 Apr 28 OCISLY ✅️

Starlink 15-3 May 4 10 OCISLY

Starlink 15-4 May 10 TBD OCISLY

NROL-48 may launch in May. Otherwise, it's successive Starlink launches.

Falcon 9 first stages are now cleared for use up to forty times for non-human spaceflight missions, although that number is apparently more restricted for Cargo Dragon and Cygnus than these other payloads.

Available first stages, with UTC date of most recent recovery:
1075.18 Feb 1
~~1081.14 Mar 15~~ Starlink 15-3
1088.6 Apr 4
1093.2 Apr 7
1071.25 Apr 12
1082.13 Apr 20
1063.26 Apr 28

Edit May 12: It's B1088.6, skipping B1075.18.

Edited

zubenelgenubi · « **Reply #4 on:** 05/04/2025 04:09 pm »

The Starlink 15-3 delay dislodges Starlink 15-4 from its schedule slot. Launch is now TBD.

Quote from: Galactic Penguin SST on 05/04/2025 03:06 pm

Well it has been pushed way down to NET May 10 UTC by now:
R0129/25 NOTAMN Q) SCIZ/QRDCA/IV/BO/W/000/999/4000S11000W715 A) SCIZ B) 2505100147 C) 2505150625 D) MAY 10-15 DLY BTN 0147-0625 E) ZONE ...D... SECT WEST PACIFIC DUE TO RE-ENTRY SPACEX STARLINK 15-3 STAGE 2 REENTRY ACTIVITY. THE AREA IS BOUNDED BY GEO COORD: 3000S / 12153W 3000S / 12000W 2843S / 12000W 5909S / 09534W 5958S / 09905W 3000S / 12153W INSTRUCTIONS: SANTIAGO OCEANIC CONTROL 10024 KHZ FANS 1A EQUIPPED ACFT LOG ON SCEZ F) SFC G) UNL

GewoonLukas_ · « **Reply #5 on:** 05/06/2025 04:53 pm »

Rescheduled for NET May 12th local / May 13th UTC:

Quote

B0681/25 NOTAMR B0658/25
Q) MMFR/QRDCA/IV/BO/W/000/999/
A) MMFR
B) 2505130000
C) 2505190301
D) 13-15 0000-0428, 16 0000-0428 2301-0329, 17 2247-0315, 18 2233-0301
E) DANGEROUS AREA FOR REENTRY OF ROCKET STARLINK 15-4 STAGE 1
LATERAL LIMIT AREA FORMED BY THE UNION OF THE FLW POINTS:
29 04N 117 27W
29 24N 117 48W
30 25N 117 56W
29 44N 117 03W
29 15N 116 59W
29 04N 117 27W
MMFR
F) SFC
G) UNL

randomname · « **Reply #6 on:** 05/08/2025 11:47 am »

First NGA notice for this launch.

Quote from: NGA

080737Z MAY 25
HYDROPAC 1176/25(22,83).
EASTERN SOUTH PACIFIC.
DNC 06, DNC 07.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
0147Z TO 0625Z DAILY 13 THRU 16 MAY,
170048Z TO 170526Z, 180034Z TO 180512Z
AND 190020Z TO 190458Z MAY
IN AREA BOUND BY
59-58.00S 099-05.00W, 59-09.00S 095-34.00W,
27-09.00S 120-43.00W, 27-59.00S 122-44.00W.
2. CANCEL THIS MSG 190558Z MAY 25.//

randomname · « **Reply #7 on:** 05/09/2025 02:59 pm »

Another NGA notice for this launch. This notice cancels NAVAREA XII 265/25, a notice for the 9th that I had thought was for 15-3.

Quote from: NGA

090258Z MAY 25
NAVAREA XII 268/25(18,21).
EASTERN NORTH PACIFIC.
CALIFORNIA.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
A. 130001Z TO 130433Z MAY, ALTERNATE
0001Z TO 0433Z DAILY 14 THRU 16 MAY,
162301Z TO 170334Z, 172247Z TO 180320Z AND
182233Z TO 190306Z MAY IN AREA BOUND BY
34-39.00N 120-39.00W, 34-32.00N 120-38.00W,
33-17.00N 119-34.00W, 32-45.00N 119-16.00W,
32-26.00N 119-01.00W, 32-26.00N 118-59.00W,
33-19.00N 119-27.00W, 34-41.00N 120-24.00W.
B. 130001Z TO 130438Z MAY, ALTERNATE
0001Z TO 0438Z DAILY 14 THRU 16 MAY,
162301Z TO 170339Z, 172247Z TO 180325Z AND
182233Z TO 190311Z MAY IN AREA BOUND BY
29-04.00N 117-27.00W, 29-04.00N 117-48.00W,
30-25.00N 117-56.00W, 29-44.00N 117-03.00W,
29-15.00N 116-59.00W.
2. CANCEL NAVAREA XII 265/25.
3. CANCEL THIS MSG 190411Z MAY 25.//

zubenelgenubi · « **Reply #8 on:** 05/10/2025 05:01 am »

https://celestrak.org/NORAD/elements/supplemental/
Supplemental GP Element Sets
Current as of 2025 May 10 04:46:27 UTC (Day 130)

Quote

Starlink G15-4 Pre-Launch
Derived from a pre-launch Starlink-G15-4 state vector, provided by SpaceX. SupGP data is provided for the entire stack, as well as one for a single satellite.

Launch: 2025-05-13 00:00:00 UTC.
Deploy: 2025-05-13 01:01:27.980 UTC.
Launch window: 2025-05-13 00:00:00 UTC to 2025-05-13 04:00:00 UTC.

And, https://celestrak.org/NORAD/elements/supplemental/table.php?FILE=starlink-g15-4&FORMAT=tle
Pre-Launch Derived Orbit: 267 km x 279 km x 70.01 deg

zubenelgenubi · « **Reply #9 on:** 05/11/2025 10:50 pm »

https://celestrak.org/NORAD/elements/supplemental/
Supplemental GP Element Sets
Current as of 2025 May 11 22:17:02 UTC (Day 131)

Quote

Starlink G15-4 Pre-Launch
Derived from a pre-launch Starlink-G15-4 state vector, provided by SpaceX. SupGP data is provided for the entire stack, as well as one for a single satellite.

Launch: 2025-05-13 01:15:10 UTC.
Deploy: 2025-05-13 02:16:37.980 UTC.
Launch window: 2025-05-13 01:15:10 UTC to 2025-05-13 01:22:19 UTC.

Backup Launch Opportunity #1
Launch: 2025-05-13 01:35:50 UTC.
Deploy: 2025-05-13 02:37:17.980 UTC.
Launch window: 2025-05-13 01:35:50 UTC to 2025-05-13 01:41:29 UTC.

Backup Launch Opportunity #2
Launch: 2025-05-13 01:42:10 UTC.
Deploy: 2025-05-13 02:43:37.980 UTC.
Launch window: 2025-05-13 01:42:10 UTC to 2025-05-13 01:42:59 UTC.

Backup Launch Opportunity #3
Launch: 2025-05-13 01:44:40 UTC.
Deploy: 2025-05-13 02:46:07.980 UTC.
Launch window: 2025-05-13 01:44:40 UTC to 2025-05-13 01:48:59 UTC.

Backup Launch Opportunity #4
Launch: 2025-05-13 02:08:00 UTC.
Deploy: 2025-05-13 03:09:27.980 UTC.
Launch window: 2025-05-13 02:08:00 UTC to 2025-05-13 02:20:39 UTC.

GewoonLukas_ · « **Reply #10 on:** 05/12/2025 05:44 pm »

Booster B1088-6

Quote

SpaceX is targeting Monday, May 12 for a Falcon 9 launch of 26 Starlink satellites to low-Earth orbit from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. Liftoff is targeted for 6:15 p.m. PT, with backup opportunities available until 7:08 p.m. PT. If needed, additional launch opportunities are also available on Tuesday, May 13 starting at 6:13 p.m. PT.

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 new X TV app.

This will be the sixth flight for the first stage booster supporting this mission, which previously launched NROL-126, Transporter-12, SPHEREx, NROL-57, and one Starlink mission. Following stage separation, the first stage will land on the Of Course I Still Love You droneship, which will be stationed in the Pacific Ocean.

There is the possibility that residents of Santa Barbara, San Luis Obispo, and Ventura counties may hear one or more sonic booms during the launch, but what residents experience will depend on weather and other conditions.

https://www.spacex.com/launches/mission/?missionId=sl-15-4

Twitter/X Webcast: https://x.com/i/broadcasts/1OdKrDyawNyJX

catdlr · « **Reply #11 on:** 05/12/2025 05:49 pm »

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

SpaceX direct live broadcast on Twitter: https://x.com/i/broadcasts/1OdKrDyawNyJX

SpaceX Re-broadcast alternatives on YouTube:
Space Affairs: https://youtube.com/watch?v=yZAHE88UfCU

There is no planned NSF Live coverage

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

Launch Ground Video (from local resident in Santa Barbara - I'll post if available)

Fleet Booster Number: https://twitter.com/BoosterSpX

Steven Pietrobon · « **Reply #12 on:** 05/12/2025 10:39 pm »

PDF of online press kit.

raptorx2 · « **Reply #13 on:** 05/13/2025 12:17 am »

For the current launch window. This would equate to a 4-E pad/ ASDS turn around time of 3 days, 1 hour, 18 minutes.

That has to be close to a record.

Galactic Penguin SST · « **Reply #14 on:** 05/13/2025 01:29 am »

Quote from: raptorx2 on 05/13/2025 12:17 am

For the current launch window. This would equate to a 4-E pad/ ASDS turn around time of 3 days, 1 hour, 18 minutes.

That has to be close to a record.

Seems to be 2nd fastest per forum member randomname - current record was set between January 21-24 this year between Starlink Group 11-8 and 11-6, 2 days, 22 hours, and 21 minutes.

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