Author Topic: SpaceX F9 : RCM (RADARSAT) : Vandenberg : June 12, 2019 - DISCUSSION (Read 103649 times)

DaveJes1979 · « **Reply #140 on:** 06/12/2019 06:25 am »

Quote from: hootowls on 06/11/2019 09:47 pm

It's the second mission of its type and, same as the first, the boostback and reentry occur over land. Any description of it being over the water is only true of a different profile at another range. The other thing to keep in mind is the altitude involved; if you were a passenger on stage 1, you'd receive astronaut wings from any country in the world that has such an award. This is about failure at high altitudes not about landing area goofs.

I'm sorry but this has just gotten out-of-hand. No, no way a sun synchronous launch from Vandenberg has a boost back phase over land. Just stop. Its not even a close call

Kabloona · « **Reply #141 on:** 06/12/2019 12:42 pm »

Quote

It's the second mission of its type and, same as the first, the boostback and reentry occur over land.

You may have seen some badly scaled diagrams made by people in KSP, etc, showing how boostback works, and the scale is so bad that is looks like boostback occurs near land, when in fact it happens far out to sea.

The hazard map illustrates clearly why no part of the boostback burn will occur over land. The launch azimuth is south-south-west-ish, directly over water, and the booster will fly back along the same path. The boostback burn will occur in the green corridor showing the flight path.

https://tinyurl.com/y3do88f2 (Thanks to Raul for the hazard map.)

This SpaceX graphic below has a better scale, showing the boostback burn well downrange, over water. (Ignore the right side of the graphic showing landing on the barge, which won't happen on this mission.)

Draggendrop · « **Reply #142 on:** 06/12/2019 01:27 pm »

https://twitter.com/Astro_DavidS/status/1138790809262743552

Yellowstone10 · « **Reply #143 on:** 06/12/2019 02:10 pm »

SpaceX providing useful information in their stream - lower right corner...

"LIVE PAD VIEWS"

"FALCON 9 IS VERTICAL. PROMISE."

edkyle99 · « **Reply #144 on:** 06/12/2019 02:46 pm »

Marine fog is a common thing at VAFB. Many rockets have punched through the fog on their way up over the years, but this is likely the first time a rocket has punched back through returning to VAFB for landing. (There may have been one or two that came back unplanned, out of control!)

- Ed Kyle

Draggendrop · « **Reply #145 on:** 06/12/2019 02:49 pm »

https://twitter.com/TheFavoritist/status/1138818616231702529

Draggendrop · « **Reply #146 on:** 06/12/2019 03:06 pm »

https://twitter.com/SSC_CA/status/1138810165036277767

Draggendrop · « **Reply #147 on:** 06/12/2019 03:23 pm »

https://twitter.com/cbs_spacenews/status/1138828317082214400

Steven Pietrobon · « **Reply #148 on:** 06/12/2019 03:26 pm »

Congratulations to SpaceX and CSA for the successful launch!

Nice shot of Falcon 9 blasting through the fog.

Draggendrop · « **Reply #149 on:** 06/12/2019 03:26 pm »

https://twitter.com/MDA_maxar/status/1138829162813296640

Draggendrop · « **Reply #150 on:** 06/12/2019 03:38 pm »

https://twitter.com/_TomCross_/status/1138830281266229248

sonic boom...and a fog replay.

Draggendrop · « **Reply #151 on:** 06/12/2019 03:43 pm »

https://twitter.com/NOAASatellites/status/1138833364583034881

Joffan · « **Reply #152 on:** 06/12/2019 03:50 pm »

Quote from: Draggendrop on 06/12/2019 03:43 pm

Quote from: NOAA Satellites
In this #GOESWest view, you can see the streak @SpaceX's Falcon 9 rocket left behind as it hoisted three Canadian satellites into orbit from Vandenberg Air Force Base in California this morning. More imagery: http://go.usa.gov/xmJQ9

Since that's clearly not the direction the rocket takes off, I'm guessing that's the hot fog from the first 10-20 seconds drifting inland?

Draggendrop · « **Reply #153 on:** 06/12/2019 03:55 pm »

I missed this image from yesterday...

https://twitter.com/MDA_maxar/status/1138573379806617601

DaveJes1979 · « **Reply #154 on:** 06/12/2019 04:45 pm »

Glad to see the launch went smoothly. Did anyone go out and try to see it on Ocean Ave? I'd be interested if there was any visibility, and confirm that the roadblock was at Floradale.

edkyle99 · « **Reply #155 on:** 06/12/2019 04:46 pm »

Quote from: Joffan on 06/12/2019 03:50 pm

Quote from: Draggendrop on 06/12/2019 03:43 pm

Quote from: NOAA Satellites
In this #GOESWest view, you can see the streak @SpaceX's Falcon 9 rocket left behind as it hoisted three Canadian satellites into orbit from Vandenberg Air Force Base in California this morning. More imagery: http://go.usa.gov/xmJQ9

Since that's clearly not the direction the rocket takes off, I'm guessing that's the hot fog from the first 10-20 seconds drifting inland?

That's the launch. It is an oblique angle view that places land behind the launch vehicle during its early climb.

- Ed Kyle

JonathanD · « **Reply #156 on:** 06/12/2019 05:08 pm »

Quote from: mme on 06/10/2019 04:04 pm

I'm thinking of trying Providence Landing Park. It won't be as sonically awesome given the distance, but you can almost see the pad from there.

699 Mercury Ave, Lompoc, CA 93436

Curious if you or anyone else gave this a whirl and what the experience was like?

Thanks!

DaveJes1979 · « **Reply #157 on:** 06/12/2019 06:05 pm »

https://twitter.com/AlteredJamie/status/1138829273026965504

Helodriver · « **Reply #158 on:** 06/12/2019 06:21 pm »

Not the greatest images, having been shot from nearly 16 miles away from the pad as the Falcon flies. But unlike everyone on base, on the coast, along Ocean Avenue, or on Harris Grade Road I at least got to see everything from T+20 seconds to L-20 seconds as the booster cleared and descended back in the strong coastal marine layer.

ZachS09 · « **Reply #159 on:** 06/12/2019 06:32 pm »

Is there a source that tells what the mass of the dispenser is? I know the total payload mass is more than 4,290 kilograms.