Author Topic: SpaceX F9 : Starlink v1.0 L18 : CCSFS SLC-40 : 4 Feb 2021 (0619 UTC)  (Read 48044 times)

Offline zubenelgenubi

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According to Next Spaceflight, this mission is going to launch NET February 1.

https://nextspaceflight.com/launches/details/2673

NET 1 February could be taken logically as = to NET February.  See:
Ben Cooper's Launch Photography launch viewing page, updated January 20; my bold:
Quote
FALCON 9

The next SpaceX Falcon 9 rocket from Cape Canaveral will launch the Transporter-1 small-satellite rideshare mission on January 22 at 9:24am EST. The launch window stretches 58 minutes to 10:22am EST. Then, a Falcon 9 from pad 39A will launch the eighteenth Starlink batch on January 27, around 8 or 8:30am EST. And a Falcon 9 will launch the nineteenth Starlink batch on February TBA. Other upcoming launches include Starlink missions in February TBA.

If SpaceX continues to alternate launches from LC-39A and SLC-40, then this launch would be from SLC-40, following tomorrow's scheduled Transporter-1 launch.  We'll see how quick a turn-around that SpaceX can do!

We'll also see how many Starlink flights will go before the Crew-2 and SXM-8 launches this spring!
« Last Edit: 01/21/2021 09:09 pm by zubenelgenubi »
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Offline Ken the Bin

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NET 1 February could be taken logically as = to NET February.  See:

Michael doesn't use that notation.  If it were just NET February, he would have it at the end of month (in the list at https://nextspaceflight.com/launches/) and it would say "NET February, 2021".  In fact that's what he has for L19, L20, and L21.

Edit: Added clarification.
« Last Edit: 01/21/2021 09:51 pm by Ken the Bin »

Offline Jansen

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If SpaceX continues to alternate launches from LC-39A and SLC-40, then this launch would be from SLC-40, following tomorrow's scheduled Transporter-1 launch.  We'll see how quick a turn-around that SpaceX can do!

9 day turnaround on SLC-40 has been done before several times. The primary constraint I see would be ASDS availability. The new 24 hour dock unloading turnaround will help a lot, but transit time is still an issue.
« Last Edit: 01/22/2021 02:18 am by Jansen »

Offline Jansen

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The most likely booster for this launch based on availability is B1059.6, with a 44 day turnaround from Dec 19 - Feb 01.

Alternatively B1063.2 if it is not on the west coast, with a 71 day turnaround from Nov21 - Feb 01.

Those are the only two boosters available in that timeframe.
« Last Edit: 01/22/2021 03:13 am by Jansen »

Offline Jansen

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Offline Jansen

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https://twitter.com/elonmusk/status/1353574169288396800

So no laser interlinks, which makes it doubtful that there are enough major differences to warrant a v1.1 at this time.

Possible, but unlikely. Hopefully more details as we approach launch date.
« Last Edit: 01/25/2021 03:32 pm by Jansen »

Offline zubenelgenubi

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Cross-post; confirmation of launch pad; my bold:
http://www.launchphotography.com/Launch_Viewing_Guide.html
Quote
FALCON 9

The next SpaceX Falcon 9 rocket from Cape Canaveral will launch the eighteenth Starlink batch from pad 39A on January 29 at around 8am EST. Then, a Falcon 9 will launch the nineteenth Starlink batch from pad 40 on February TBA. A Falcon 9 will launch the twentieth Starlink batch on February TBA. Upcoming launches include multiple Starlink missions on February TBA.
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Offline Jansen

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Offline Jansen

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The most likely booster for this launch based on availability is B1059.6, with a 44 day turnaround from Dec 19 - Feb 01.

Alternatively B1063.2 if it is not on the west coast, with a 71 day turnaround from Nov21 - Feb 01.

Those are the only two boosters available in that timeframe.

Still most likely to be B1059.6, with a 47 day turnaround from Dec 19 - Feb 04.

Offline Jansen

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Offline whitelancer64

The most likely booster for this launch based on availability is B1059.6, with a 44 day turnaround from Dec 19 - Feb 01.

Alternatively B1063.2 if it is not on the west coast, with a 71 day turnaround from Nov21 - Feb 01.

Those are the only two boosters available in that timeframe.

I'm pretty sure 63.2 is reserved for NASA's DART mission.
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Offline Jansen

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I'm pretty sure 63.2 is reserved for NASA's DART mission.

Not exclusively, in the same way B1058 was slated to fly CRS-21 for months, but still had other payloads in between.

Nonetheless, the point is that there are only two possibilities, with B1059.6 the most likely.
« Last Edit: 01/27/2021 11:53 pm by Jansen »

Offline Jansen

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Offline zubenelgenubi

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Cross-post; probable delay into beyond February 4; my bold:
http://www.launchphotography.com/Launch_Viewing_Guide.html
Quote
FALCON 9

The next SpaceX Falcon 9 rocket from Cape Canaveral will launch the eighteenth Starlink batch from pad 39A on February at ~6am EST. Launch times for Starlink launches get around 20-22 miutes earlier each day. Then, a Falcon 9 will launch the nineteenth Starlink batch from pad 40 on February 4 earliest at 1:19am EST. A Falcon 9 will launch the twentieth Starlink batch on February TBA. Upcoming launches include more Starlink missions on February TBA.

I think Ben is saying:
Because of the delay of Starlink v1.0 Flight 17 beyond February 1, Starlink v1.0 Flight 18 will also be delayed.

Each day's delay moves the launch time 20-22 minutes earlier.

February 4: 06:19 UTC,
February 5: ~06:00 UTC,
February 6: ~05:40 UTC, rounding up to ~06:00 UTC,
and so on.

We shall see.

Edited
« Last Edit: 01/30/2021 07:29 pm by zubenelgenubi »
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Offline Jansen

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The time has not changed for this launch yet. I think you got the mission numbers and timezones mixed up.
« Last Edit: 01/30/2021 06:58 pm by Jansen »

Offline Jansen

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Cross-post; probable delay into beyond February 4; my bold:
http://www.launchphotography.com/Launch_Viewing_Guide.html
Quote
FALCON 9

The next SpaceX Falcon 9 rocket from Cape Canaveral will launch the eighteenth Starlink batch from pad 39A on February at ~6am EST. Launch times for Starlink launches get around 20-22 miutes earlier each day. Then, a Falcon 9 will launch the nineteenth Starlink batch from pad 40 on February 4 earliest at 1:19am EST. A Falcon 9 will launch the twentieth Starlink batch on February TBA. Upcoming launches include more Starlink missions on February TBA.

I think Ben is saying:
Because of the delay of Starlink v1.0 Flight 17 beyond February 1, Starlink v1.0 Flight 18 will also be delayed.

Each day's delay moves the launch time 20-22 minutes earlier.

February 4: 06:19 UTC,
February 5: ~06:00 UTC,
February 6: ~05:40 UTC, rounding up to ~06:00 UTC,
and so on.

We shall see.

Edited

There is no delay to this launch yet. SpaceX can launch 2 F9s on the same day within a few hours.

The 6am EST launch time indicates a Feb 3 launch for Starlink v1.0 L17.

That is different from the 0619 UTC launch for Starlink v1.0 L18 a day later.

You had put a 0600 UTC time for this launch, which doesn’t make sense.
« Last Edit: 01/30/2021 07:41 pm by Jansen »

Online FutureSpaceTourist

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https://twitter.com/spacexfleet/status/1355683323033645063

Quote
Departure!

OCISLY droneship is outbound for SpaceX's 19th Starlink mission (V1 L18), NET Feb 4th.

Tug Lauren Foss is towing OCISLY ~633km downrange.

Via @NASASpaceflight Fleetcam

Offline Ken the Bin

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NGA notices:

Quote from: NGA
310356Z JAN 21
NAVAREA IV 94/21(11,26).
WESTERN NORTH ATLANTIC.
FLORIDA.
1. HAZARDOUS OPERATIONS, ROCKET LAUNCHING
   040604Z TO 040722Z, ALTERNATE
   050543Z TO 050701Z FEB
   IN AREAS BOUND BY:
   A. 28-40-02N 080-38-23W, 29-07-00N 080-03-00W,
      28-58-00N 079-57-00W, 28-33-00N 080-20-00W,
      28-30-06N 080-32-51W.
   B. 31-41-00N 077-09-00W, 33-17-00N 076-03-00W,
      33-31-00N 074-59-00W, 33-10-00N 074-36-00W,
      32-27-00N 074-46-00W, 31-25-00N 076-53-00W.
2. CANCEL THIS MSG 050801Z FEB 21.
Quote from: NGA
310415Z JAN 21
HYDROPAC 395/21(GEN).
INDIAN OCEAN.
WESTERN SOUTH PACIFIC.
1. HAZARDOUS OPERATIONS, SPACE DEBRIS
   040812Z TO 040907Z FEB, ALTERNATE
   050751Z TO 050846Z FEB IN AREA BOUND BY
   29-43S 060-07E, 24-55S 064-27E,
   38-45S 084-30E, 45-12S 099-45E,
   49-46S 119-13E, 50-42S 138-19E,
   48-50S 156-44E, 51-46S 158-08E,
   54-42S 148-32E, 56-20S 131-03E,
   55-52S 107-50E, 49-11S 085-05E,
   34-32S 064-13E.
2. CANCEL THIS MSG 080946Z FEB 21.

Offline Jansen

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OCISLY is being towed by Lauren Foss, ETA gives plenty of time before launch.
« Last Edit: 01/31/2021 07:43 am by Jansen »

Offline Elthiryel

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Next Spaceflight confirms that booster 1059.6 will be used for this mission, as expected. 47 days from the previous launch of 1059 (NROL-108) if the mission is not delayed.

https://nextspaceflight.com/launches/details/2673

GO for launch, GO for age of reflight

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