Author Topic: SpaceX F9 : Starlink group 6-15 : VSFB SLC-4E : 20 July 2023 (04:09 UTC)  (Read 26919 times)

Offline zubenelgenubi

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Thread for the Starlink 6-15 group launch.

NSF Threads for Starlink 6-15: Discussion

Launch 20 July 2023, 04:09:30 UTC (19 July 9:09 pm PDT), from Vandenberg SLC-4E, on booster 1071-10.  First stage successfully landed aboard Of Course I Still Love You.

Payload: 15 Starlink V2 Mini satellites to 43 degree inclination on a southeastern trajectory, with a substantial dogleg.  Initial orbit 285 x 315 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
« Last Edit: 07/20/2023 01:25 pm by zubenelgenubi »
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Offline zubenelgenubi

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Cross-posts:
1015-EX-ST-2023   Mission 1874 Starlink Group 6-15
[Operation Start Date: May 31]
ASDS North  29  41  52   West  116  41  19

SpaceX refiled four of the flights from Vandy with a different ASDS position.

Mission 1874  Starlink 6-15 (dogleg trajectory option)
ASDS     North  28  51  6   West  119  3  37
NET late June
Launch NET mid July, after Starlink 5-13 (NET July 2) and before SDA T&TL Tranche 0B (NET late June).
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Offline zubenelgenubi

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Launch NET mid July, after Starlink 5-13 (NET July 2) and before SDA T&TL Tranche 0B (NET late June).
Starlink 5-13 launched July 7.
Launches July ~17 and July ~27?

Is Starlink 6-15 the next Vandenberg Falcon 9 launch?

How many V2 Mini satellites will it carry? 🛰
22?  Or, how many less than 22, trading payload for a substantial dogleg trajectory?

If this is the next launch, which first stage will be used for it?  (semi-rhetorical question)

The May 16 press briefing revealed Falcon 9 first stages are now cleared for use up to twenty times for Starlink launches.  This will include 1061.16, if it lands successfully after its next launch.

Available first stages, with date of most recent recovery:
1061.15   May 31
1071.10   Jun 12
1075.5     Jun 22 (maybe)

Edit July 17: It's B1071.10, skipping B1061.15.

Edited
« Last Edit: 07/19/2023 03:07 am by zubenelgenubi »
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Offline Ken the Bin

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The FAA ATCSCC Current Operations Plan Advisory has the following new information:

Quote from: FAA
SPACE X STARLINK 06-15 VANDENBERG SFB, CA
PRIMARY:    07/19/23    0229Z-0843Z
BACKUP:     07/20/23    0203Z-0818Z
            07/21/23    0138Z-0753Z
            07/22/23    0113Z-0728Z
            07/23/23    0048Z-0703Z
            07/24/23    0022Z-0637Z
            07/24/23    2357Z-0229Z

As always, this information is advisory, not official. It may or may not be correct and complete.

In this particular case it does appear to be complete. And it is internally consistent. If the Primary Day is correct, then the Backup Days should be correct also.

Offline ZachS09

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Per Next Spaceflight, launch is scheduled for July 19th at 02:29 UTC (7:29 PM Pacific on the 18th).

https://nextspaceflight.com/launches/details/7183
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Offline Ken the Bin

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NGA Space Debris notice.

Quote from: NGA
132111Z JUL 23
NAVAREA XII 437/23(21).
EASTERN NORTH PACIFIC.
MEXICO.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
   190430Z TO 190623Z JUL, 200404Z TO 200558Z JUL,
   210339Z TO 210532Z JUL, 220314Z TO 220507Z JUL,
   230249Z TO 230442Z JUL, 240223Z TO 240417Z JUL,
   250158Z TO 250352Z JUL IN AREA BOUND BY
   28-08.00N 119-04.00W, 28-14.00N 118-37.00W,
   29-00.00N 118-38.00W, 29-30.00N 119-06.00W,
   29-27.00N 119-18.00W, 28-45.00N 119-19.00W.
2. CANCEL THIS MSG 240452Z JUL 23.

Offline OneSpeed

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NGA Space Debris notice.

This notice defines an area well to the west of the previous SLC-4e launch to a 43° inclination, Starlink 5-13.

Rather, it is closer to the area for a 70° inclination. However, if 6-15 really is to 43°, then the ground track might look like in the map below. At least it might avoid overflight of the Baja California Sur. The dogleg would also be earlier in the S2 burn, so less expensive per degree.
« Last Edit: 07/14/2023 12:47 am by OneSpeed »

Online Alexphysics

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NGA Space Debris notice.

This notice defines an area well to the west of the previous SLC-4e launch to a 43° inclination, Starlink 5-13.

Rather, it is closer to the area for a 70° inclination. However, if 6-15 really is to 43°, then the ground track might look like in the map below. At least it might avoid overflight of the Baja California Sur. The dogleg would also be earlier in the S2 burn, so less expensive per degree.

This would mean Starlink 6-15 is using the "dogleg option" of their FCC permit. It would still be 43º but with quite a noticeable dogleg.

Offline ZachS09

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https://nextspaceflight.com/launches/details/7183

Launch time has changed to 02:59 UTC (7:59 PM Pacific on July 18th).
« Last Edit: 07/15/2023 09:58 pm by ZachS09 »
Liftoff for St. Jude's! Go Dragon, Go Falcon, Godspeed Inspiration4!

Offline VLN

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Quote from: NGA
132111Z JUL 23
NAVAREA XII 437/23(21).
EASTERN NORTH PACIFIC.
MEXICO.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
   190430Z TO 190623Z JUL, ...

Why would NextSpaceFlight still favor a launch time before 0430Z?

Offline VLN

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And the drone ship Of Course I Still Love You has left the Port of Long Beach for the recovery zone

Offline Ken the Bin

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Quote from: NGA
132111Z JUL 23
NAVAREA XII 437/23(21).
EASTERN NORTH PACIFIC.
MEXICO.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
   190430Z TO 190623Z JUL, ...

Why would NextSpaceFlight still favor a launch time before 0430Z?

I have no idea.

I used the Space Debris hazard period start times for the schedule information (Primary Day and six Backup Days) that I posted in the Ars Technica forums and on Mastodon.

Usually I add an offset to the Rocket Launching hazard period start times to get what I think the launch times may be, but in this particular case because it was a Space Debris notice I used an offset of zero.

Offline VLN

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I used the Space Debris hazard period start times for the schedule information (Primary Day and six Backup Days) that I posted in the Ars Technica forums and on Mastodon.

Usually I add an offset to the Rocket Launching hazard period start times to get what I think the launch times may be, but in this particular case because it was a Space Debris notice I used an offset of zero.
Yes, that’s just how I interpret the information. I used to figure the launch would be between 10 and 30 min after the start of the NGA or USCG hazard warning period. Or the overlap of the two periods, if they differ.

But as we recently found, we can’t always trust that the warning periods we know about will enclose the actual launch time.

Online FutureSpaceTourist

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https://twitter.com/spaceoffshore/status/1680928336283942912

Quote
Of Course I Still Love You droneship and support ship GO Beyond are underway from the Port of Long Beach to support the upcoming Starlink 6-15 mission!

Scorpius + OCISLY departed PoLB on July 15 sometime before 7pm PT (10pm ET)

Offline Ken the Bin

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An NGA Space Debris that looks like it might be for this launch.

Quote from: NGA
171943Z JUL 23
NAVAREA XII 445/23(GEN).
EASTERN NORTH PACIFIC.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
   0330Z TO 0739Z DAILY 19 THRU 25 JUL
   IN AREA BOUND BY
   02-55S 105-33W, 01-31S 104-15W,
   25-07N 133-04W, 23-41N 134-25W.
2. CANCEL THIS MSG 250839Z JUL 23.

Online FutureSpaceTourist

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Online FutureSpaceTourist

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https://www.spacex.com/launches/mission/?missionId=sl-6-15

Quote
SpaceX is targeting Tuesday, July 18 at 9:40 p.m. PT (04:40 UTC on July 19) for a Falcon 9 launch of 15 Starlink satellites to low-Earth orbit from Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. If needed, an additional launch opportunity is also available at 10:30 p.m. PT (05:30 UTC on July 19). Backup opportunities are also available on Wednesday, July 19 at 9:14 p.m. PT (04:14 UTC on July 20) and 10:05 p.m. PT (05:05 UTC on July 20).

This is the 10th flight for the first stage booster supporting this mission, which previously launched NROL-87, NROL-85, SARah-1, SWOT, Transporter-8, and four Starlink missions. 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.

A live webcast of this mission will begin about five minutes prior to liftoff.

Quote
Falcon 9 launch of 15 Starlink satellites to low-Earth orbit

Wow, only 15 V2 minis, they are being quite conservative with this first batch it seems. That puts the total mass at around 12 tons assuming about 800kg per sat, almost 3 tons less then the 48 V1.5's they recently launched to the same 43 deg inclination. Hopefully they tack on 2-3 more sats per launch for future missions like this out of vandy.

Offline soltasto

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"Press kit" capture with OCR

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