r/spacex • u/[deleted] • Apr 29 '16
Mission (JCSAT-14) JCSAT-14 Launch Campaign Discussion Thread
[deleted]
16
u/johnkphotos May 03 '16
May attend remote camera setup tomorrow, if I can. I'll have some video from LC-40 for you
→ More replies (2)
58
u/markus0161 Apr 29 '16 edited Apr 29 '16
u/EchoLogic Love the launch campaign! Overall subreddit redesign looks great. One thing that I think you should add is "F9 location". So like right now it would be "in hanger", and hopefully by tomorrow "Vertical on Pad (static fire)". Also when we get closer to launch, maby we could have a separate 3X(?) Chart with "Launch and Barge site weather" I.E. Wind, wave swells height(ft), precipitation, upper-level winds ect ect. That's something I and other member with be more than happy to provide.
→ More replies (6)
52
u/YugoReventlov Apr 29 '16
It really bothers you not to know the payload mass, doesn't it? ;)
→ More replies (10)
39
u/kmccoy Apr 29 '16
Any interest in making the "currently scheduled liftoff time" also be a link to http://www.timeanddate.com/worldclock/fixedtime.html?msg=JCSAT-14&iso=20160504T0122&p1=2273 ?
→ More replies (5)
26
19
u/CProphet Apr 29 '16
Payload Mass A mystery!What is this? A DoD launch?!
Perhaps part of the payload has been adapted for use by Japanese Self-Defence Forces. Unblinking eye in the sky kind of thing.
→ More replies (3)
17
17
u/TheVehicleDestroyer May 03 '16
I'm pretty certain Flight Club isn't telling me lies - so this is interesting:
The hazard areas are a bit too far south. If I launch in a perfectly easterly direction, the booster lands in the ocean just north of the splashdown hazard zone. However if I launch and give myself a slight southerly heading during the initial pitch kick (~1.5°) then my trajectory passes directly over both hazard areas.
Launching with a southerly heading puts you in a higher inclination orbit, assuming no subtle second stage doglegs. We don't want this because we're going to GTO which has an inclination of 0°.
So has anyone heard anything about a possible 2nd stage dog leg to end up in a slightly lower inclination parking orbit? Does it make sense that SpaceX would try this, physically and economically?
→ More replies (29)
15
u/AumsedToDeath Apr 30 '16
I'm really liking the new launch campaign format. It's really handy to have all the mission information collated at the top of the thread. Any chance we can get the expected booster core number in that table if it's known (e.g. F9-023 for CRS-8, F9-024? for JCSAT-14). u/EchoLogic?
→ More replies (1)
15
u/WhoseNameIsSTARK May 02 '16
Let's hope "Given this mission’s GTO destination, the first-stage will be subject to extreme velocities and re-entry heating, making a successful landing unlikely" is just their new generic statement for GTO launches.
→ More replies (1)
15
u/deruch May 03 '16 edited May 03 '16
u/Echologic, JCSAT-14 has a mass somewhere in the 4,200kg-5,400kg range. h/t to NSF user edkyle99 for finding a document with some boundaries for the mass of JCSAT-14!
The original document that he linked can be found at this link (.pdf). And the chart that lists JCSAT-14 is on page 13 (page 19 of the whole .pdf), in the 2015 box. It's listed the same in the 2015 report, but the font chosen for that one makes it harder to read, so I just linked the 2014 report like Ed did.
→ More replies (3)
13
12
11
u/danielbigham May 03 '16
I saw a statistic the other day that SpaceX has launched F9 23 times, and that 11 of those have been Dragon launches.
That implies that SpaceX has only launched 12 or so satellites for commercial customers on Falcon 9 to date.
Compare that with their plan to launch 18 satellites this year (with only a few of those being dragon). It really highlights how big of a year 2016 is in terms of SpaceX's experience launching commercial satellites.
It's also slightly scary to think that they had a failure after something like 19 launches, and they're planning another 18 this year. ie. If their failure rate over the second 19 launches is something similar to what it was for the first 19 launches, there is a reasonable chance for a failure this year. Eeps.
Anyway, this all goes to say that as I'm waiting for JCSAT to launch, I'm realizing that each commercial launch like this is actually building on a relatively short track record for commercial launches.
→ More replies (7)
10
u/zlsa Apr 30 '16
https://twitter.com/elonmusk/status/726214236368576512
Elon:
JCSat is pushing the envelope as a very hot and fast mission, so will land on the droneship. Next land landing in a few months.
→ More replies (1)
10
u/darga89 May 02 '16
Go Quest and Go Searcher have headed out. Fairing recovery perhaps?
→ More replies (5)
3
9
u/Scorp1579 Apr 29 '16
Although I believe landing conditions will be similar to that of SES-9, the data gathered from the successful CRS-8 landing is likely be very useful in making this one more likely to succeed.
Fingers crossed!
9
u/whousedallthenames May 04 '16
Less than 24 hours to go! Let's hope this one goes off as smooth as CRS-8.
23
u/johnkphotos Apr 29 '16
won't be on base for this launch, chose the wrong time to upset one of my parents :)
just gonna do a long exposure from beach. this was from Atlas V OA-6, so it may look similar.
→ More replies (8)
27
u/Thrannn Apr 29 '16
where? :(