SpaceX Falcon 9 : SXM-7 : CC SLC-40 : December 13, 2020 (17:30 UTC)

[FutureSpaceTourist]

https://twitter.com/spacex/status/1337392480581382144

Falcon 9 and SXM-7 on pad 40. Today’s one-hour and 59-minute launch window opens at 11:21 a.m. EST, and weather is 90% favorable for liftoff → spacex.com/launches

[FutureSpaceTourist]

Great graphic showing reuse info for this flight:

https://twitter.com/spaceintellige3/status/1337401517012344832

[soltasto]

By the way, I'm pretty sure they posted the wrong flight profile picture on the website, it shows a boostback burn, which doesn't make much sense for a 7000 kg GTO flight (but scroochy did it right ).

That has now been corrected.

I still see the boostback burn in the image at https://www.spacex.com/launches/

[Jansen]

By the way, I'm pretty sure they posted the wrong flight profile picture on the website, it shows a boostback burn, which doesn't make much sense for a 7000 kg GTO flight (but scroochy did it right ).

That has now been corrected.

I still see the boostback burn in the image at https://www.spacex.com/launches/

Try clearing your cache.

[Jansen]

https://twitter.com/SpaceX/status/1337418003399364614

New launch time

[TJL]

https://twitter.com/SpaceX/status/1337418003399364614

New launch time

Was reason given for delay?

[Steven Pietrobon]

NSF coverage has started.

[Steven Pietrobon]

T-1 hour 30 minutes.

[Steven Pietrobon]

T-1 hour 15 minutes. NSF team will be upgrading to standard audio gear in the future.

[Jansen]

https://twitter.com/SpaceX/status/1337418003399364614

New launch time

Was reason given for delay?

No, but it could be several things. Even something like cloud cover or winds, given the two hour window.

[Steven Pietrobon]

T-1 hour.

[Jansen]

https://twitter.com/SpaceX/status/1337434224849158145

Now targeting 12:55 p.m. EST for Falcon 9 launch of SXM-7; team is monitoring upper-level winds

[Steven Pietrobon]

T-1 hour 25 minutes. 35 minute delay as watching upper level winds.

[zubenelgenubi]

Recall that upper-level winds and wind shear are not included in the "regular" launch weather forecasts.  The weather forecasters also monitor them.

I forget why they are not included in the usual weather forecasts.

L-1 launch weather forecast is now 90% GO

Now targeting 12:55 p.m. EST for Falcon 9 launch of SXM-7; team is monitoring upper-level winds.

[Steven Pietrobon]

T-1 hour 15 minutes.

[Jansen]

Recall that upper-level winds and wind shear are not included in the launch weather forecasts.  They are monitored separately.

L-1 launch weather forecast is now 90% GO

Now targeting 12:55 p.m. EST for Falcon 9 launch of SXM-7; team is monitoring upper-level winds

Upper level wind shear is listed under “additional risk criteria”, but I don’t think they are used for the launch probability calculation.

It’s one of those “day of launch” conditions that is tough to quantify or predict, like booster recovery weather.

[Steven Pietrobon]

T-1 hour.

[Steven Pietrobon]

T-50 minutes.

[Jansen]

Coming up soon:

T-00:38:00   SpaceX Launch Director verifies go for propellant load

[Steven Pietrobon]

T-38 minutes. The SpaceX Launch Director should be verifying go for propellant load about now.