Author Topic: SpaceX F9 : Starlink v1.0 L27 : CCSFS SLC-40 : 09 May 2021 (0642 UTC) (Read 40450 times)

Jansen · « **Reply #60 on:** 05/09/2021 07:39 am »

I believe it was an expected LOS, so no reason to panic. At least the people at Hawthorne don’t seem to be.

EspenU · « **Reply #61 on:** 05/09/2021 07:39 am »

At T+46:49 the map jumped to the location from around T+23.

Edit: jumped back to correct location at T+58:51

Craftyatom · « **Reply #62 on:** 05/09/2021 07:40 am »

Quote from: Jansen on 05/09/2021 07:31 am

NO confirmation of SES-2 or orbital insertion.

Worth noting that the displayed telemetry showed speed increasing by 121 km/h over about a second, around the time SES-2 was expected. This is exactly the same as was seen on the Starlink v1.0 L25 launch stream.

Jansen · « **Reply #63 on:** 05/09/2021 07:43 am »

AOS Tasmania

Jansen · « **Reply #64 on:** 05/09/2021 07:44 am »

Video of 2nd stage is on the feed, but still no word on orbit.

Elthiryel · « **Reply #65 on:** 05/09/2021 07:46 am »

Speed and altitude are very similar to the previous Starlink mission with the same time elapsed, so most likely it's a good orbit.

FutureSpaceTourist · « **Reply #66 on:** 05/09/2021 07:46 am »

https://twitter.com/nasaspaceflight/status/1391297339109806083

https://twitter.com/nasaspaceflight/status/1391297816824328196

Jansen · « **Reply #67 on:** 05/09/2021 07:47 am »

Confirmation of SES-2 and good orbit

FutureSpaceTourist · « **Reply #68 on:** 05/09/2021 07:48 am »

https://twitter.com/spacex/status/1391298872895414272

Jansen · « **Reply #69 on:** 05/09/2021 07:48 am »

Payload deployed

Looks more separated than usual

Craftyatom · « **Reply #70 on:** 05/09/2021 07:56 am »

Host signs off by thanking mothers, in reference to Mother's Day, which is observed on May 9th this year (second Sunday of May) in the U.S. and many other countries.

(I say that specifically because my U.K. and U.S. relatives sometimes confuse each other by observing it on different days.)

erv · « **Reply #71 on:** 05/09/2021 09:41 am »

Quote from: Jansen on 05/09/2021 07:48 am

Payload deployed

Looks more separated than usual

I haven't tried to estimate angular speed before payload sep so it might be just me but looked like somewhat faster than before. That could explain more separation.
That said, its not always easy to estimate when sep is at night or otherwise lacking points of reference - in this case we had sun in view.

Star One · « **Reply #72 on:** 05/09/2021 10:39 am »

Archived mission video from Space X:

FutureSpaceTourist · « **Reply #73 on:** 05/09/2021 12:21 pm »

SpaceX launch photos from website

RedLineTrain · « **Reply #74 on:** 05/09/2021 05:51 pm »

Note that this was the first orbital launch webcast in 4K. Very smooth. Good job, SpaceX.

mn · « **Reply #75 on:** 05/09/2021 06:03 pm »

So how do they get telemetry showing the speed increase during the burn but not know if the burn happened and if orbit insertion was good until later?

Was there a disconnect between the control room and the broadcast host? Also no announcement on the net, despite apparently live telemetry? Just odd any way you slice it.

thirtyone · « **Reply #76 on:** 05/09/2021 06:21 pm »

Quote from: mn on 05/09/2021 06:03 pm

So how do they get telemetry showing the speed increase during the burn but not know if the burn happened and if orbit insertion was good until later?

Was there a disconnect between the control room and the broadcast host? Also no announcement on the net, despite apparently live telemetry? Just odd any way you slice it.

I don't think so actually, I saw the jump when they got telemetry again. Guessing the burn didn't actually complete until after telemetry was lost. Note 26893/265 is stuck on the frame for quite some time (these sound like pre-burn numbers) starting T+46:50ish and then the correct ones show up again around T+58:50. You see similar behavior in previous webcasts so I'm thinking SES-2 tends to happen close to the edge of one of the ground station coverage areas. Just a matter of whether or not enough data gets recovered in the final few packets to know it's good. I'm sure the sudden acceleration messes a bit with tracking the signal as well.

cpushack · « **Reply #77 on:** 05/09/2021 07:03 pm »

Quote from: thirtyone on 05/09/2021 06:21 pm

<snip>You see similar behavior in previous webcasts so I'm thinking SES-2 tends to happen close to the edge of one of the ground station coverage areas. Just a matter of whether or not enough data gets recovered in the final few packets to know it's good. I'm sure the sudden acceleration messes a bit with tracking the signal as well.

yah thats usually right on the edge of Diego Garcia LOS, and then AOS Tasmania 10 minutes later

zubenelgenubi: Fixed quote.

SMS · « **Reply #78 on:** 05/09/2021 08:59 pm »

https://twitter.com/TSKelso/status/1391482231714050048

FutureSpaceTourist · « **Reply #79 on:** 05/10/2021 06:39 am »

https://twitter.com/johnkrausphotos/status/1391380539035242499

Quote

𝙏𝙀𝙉 𝙁𝙇𝙄𝙂𝙃𝙏𝙎

Nine Merlin 1D engines power Falcon 9 B1051 to space this morning for its record-breaking tenth flight

https://twitter.com/rdanglephoto/status/1391424417616568320

Quote

Lift off of B1051 on its tenth flight to deliver another batch of #Starlink satellites to orbit! Curious to see how many flights #SpaceX can get out of this #Falcon9!

Covered for @Teslarati

https://twitter.com/star_shattered/status/1391406281659981829

Quote

Sunday morning 2:42AM EDT #SpaceX Successfully Launched and landed their #Falcon9 booster B1051-10 for the 10th time! An incredible milestone for reusability! #Starlink

📷:Me for @gospacelaunch