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SpaceX F9 - JCSAT 18/Kacific 1 - SLC-40

e-FTW

New electron smell
Aug 23, 2015
3,336
3,214
San Francisco, CA
Launch Date: Dec 16th-17th
Launch Window: 0010-0138 GMT on Dec 17th (7:10-8:38 p.m. EST on Dec 16th)
Launch site: SLC-40 Cape Canaveral
Booster Recovery: ASDS
Booster: B1056.3
Fairings: The Go's are heading out for recovery
Mass: 6956 kg (15,355 lbs)
Orbit: GTO

A SpaceX Falcon 9 rocket will launch the JCSAT 18/Kacific 1 communications satellite jointly owned by SKY Perfect JSAT Corp. of Japan and Kacific Broadband Satellites of Singapore. Built by Boeing, the JCSAT 18/Kacific 1 communications satellite will provide mobile and broadband services across the Asia-Pacific region.

At 6800 kg, this one is extremely heavy.

From NASASpaceflight article:
The mission set for launch Monday will mark SpaceX’s 13th flight of the year, and the second in 11 days from the same launch pad at Cape Canaveral Air Force Station. If the Falcon 9 takes off Monday night, it would mark the fastest turnaround between SpaceX missions from the same launch pad.

JCSat 18 / Kacific 1
 
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Grendal

SpaceX Moderator
Jan 31, 2012
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e-FTW

New electron smell
Aug 23, 2015
3,336
3,214
San Francisco, CA
No details I can find on where the Falcon will place the satellite or whether there will be a recovery. It ends up in GEO though.
This satellite is heavier than Arabsat 6A - which used a FH to get it where it needed to go.
That said, Telstar 18V was heavier and the booster was recovered.
Kacific1 satellite arrives at SpaceX launch site in Cape Canaveral, Florida - Kacific
Right on about Telstar 18V, 7060kg to GTO, with ASDS landing.
I was going by Teslarati speculation:
“Although Falcon 9 has been significantly upgraded since 2017, launching a 6.8-ton satellite to a full geostationary transfer orbit (GTO) is still out of the question, meaning that Kacific-1 will either require expendable Falcon 9 performance or be launched to a subsynchronous transfer orbit. The latter is significantly more likely, as the opportunity cost of expending a Falcon 9 Block 5 booster is large enough to encourage SpaceX to avoid it if at all possible.”
 
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Grendal

SpaceX Moderator
Jan 31, 2012
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Early weather report for the launch. 90% positive. We had 90% for CRS-19 and was still delayed for a day. So even 90% is not a sure thing... :)
79367030_2577747248988596_14054133719891968_n.jpg
 
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Nikxice

Active Member
Oct 31, 2014
1,138
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Hudson, NH
SpaceXNow currently shows this launch is scheduled for 4:10PM Pacific Time on Dec 16, tomorrow. Is that correct?
That's affirmative. It appears Grendal has recently edited the correct date/time at the top of this page. Backup window is on Tuesday, exactly 24 hours later. Still looking at 90% Monday. The primary concern is launching with some cumulus clouds in the area, upper level winds 55kts. Tuesday down to 50% with with upper level winds at 75kts, generating more concern for possible wind shear. OCISLY is being towed into position by tugboat Hawk and both Go ships are a go for individual attempts to catch a fairing.
 
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Cosmacelf

Well-Known Member
Mar 6, 2013
8,779
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San Diego
I'm watching this launch broadcast and when listening to the customer clips, I can't help but think that Starlink is going to completely obsolete these satellites and operators...
 

Cosmacelf

Well-Known Member
Mar 6, 2013
8,779
22,251
San Diego
I mean, all good tech companies will obsolete their own products as they innovate, but SpaceX is taking this to a new level. They are obsoleting their customer's products.
 
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SMAlset

Well-Known Member
Mar 4, 2017
9,198
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SF Bay Area
OMG that Stage 1 landing in the dark was spectacular!

D31E5216-AC0D-424B-BD22-3EB24DAEA33C.png


036426B0-A251-48B9-BCEC-BD1385ABFC19.png


0A9D8CD4-5D23-46EC-B0D9-0C46E38D8F9A.png


Way to go!

Very eerie launch at night but the above has to be the highlight for me...so far...unless they catch both halves of the fairing in the dark!
 
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Grendal

SpaceX Moderator
Jan 31, 2012
6,036
7,668
Santa Fe, New Mexico
Great launch and booster has been recovered. Awaiting satellite separation and possibly fairing recovery.

No fairing catch but recovery from the ocean.
 
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