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SpaceX F9 - 13th Reuse - SES-12 - SLC-40

Grendal

SpaceX Moderator
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Jan 31, 2012
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Launch Date: June 4, Monday
Launch Window: 0429-0829 GMT (12:29-4:29 a.m. EDT)
Launch site: SLC-40, Cape Canaveral Air Force Station, Florida
Booster Recovery: None expected - 2nd launch of a Block 4
Booster Type: B1040 - Block 4
Orbit: GTO 5,300 kg (11,700 lb)

A SpaceX Falcon 9 rocket will launch the SES 12 communications satellite for SES of Luxembourg. The SES 12 satellite will provide direct-to-home broadcast and other high-throughput communications services in the Middle East and the Asia-Pacific region, including rapidly growing markets such as India and Indonesia. The satellite was built by Airbus Defense and Space. The SES-12 spacecraft has arrived safely at the Cape Canaveral Air Force Station, Florida, on April 12th in preparation for launch. The B1040 booster was originally used to launch the OTV-5 X-37B spaceplane for the Air Force. The booster did a RTLS for that mission.

This will be a very early launch.

Satellite details:
Satellite | SES
SES-12 - Wikipedia
Satbeams - World Of Satellites at your fingertips
SES 12
 
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Grendal

SpaceX Moderator
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Jan 31, 2012
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Block 4 only gets reused once.

I am crossing my fingers that a Block 4 gets a third reuse with the In Flight Abort test for Commercial Crew. The TESS booster (B1045) landed on OSCILY in spectacular shape. It's next launch for CRS-15 will also be an easy RTLS recovery with minimal wear and tear as well. So I'm hoping that booster gets a third reuse with the In Flight Abort test.

The ongoing rumor is that they will reuse the KoreaSat 5A (B1043) booster for the In Flight Abort though.
 
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Fiver

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Apr 10, 2015
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Question about the time gap between the end of second stage burn two and when they release the satellite. After the second burn is over, why hold onto the satellite for so long if the second stage is done at that point? Why not release it shortly after the burn is over once everything checks out? If there aren’t any additional burns planned what’s the point of holding onto it for so long after?
 
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Grendal

SpaceX Moderator
Moderator
Jan 31, 2012
6,563
8,962
Santa Fe, New Mexico
Successful launch. Some drama over a lens flare after liftoff. Nothing fell off. Everything else went successful except some mylar shielding came loose on the second stage and flapped around. It didn't prevent the successful deployment of the satellite in the desired position.

Question about the time gap between the end of second stage burn two and when they release the satellite. After the second burn is over, why hold onto the satellite for so long if the second stage is done at that point? Why not release it shortly after the burn is over once everything checks out? If there aren’t any additional burns planned what’s the point of holding onto it for so long after?

They are waiting for a specific pre-arranged point in space to release. It may take a while to reach that point. Maybe there are some satellite checks that SES needs to do.

It's a good question and I am just speculating.
 

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