DocM Posted July 16, 2014 Share Posted July 16, 2014 Currently targeting August 3, 2014 Only 20 days after ORBCOMM, if it goes off on time they may try launching AsiaSat 6 before Dragon CRS-4 in early September.. Launch window: TBD, late evening EDT - early morning UTC. No landing attempt with this launch as it's a big honkin' GTO communications satellite leaving no propellant margins. AsiaSat 8 info, http://www.asiasat.com/asiasat/contentView.php?section=216〈=0 AsiaSat 8 The most powerful among AsiaSat satellites with multiple Ku beams AsiaSat 8 is designed to be co-located with AsiaSat 7 at the orbital location of 105.5 degrees East. This new satellite is a Space Systems/Loral 1300 series satellite, to be equipped with 24 Ku-band transponders and a Ka-band payload. Co-locating with AsiaSat 7, Asias most established satellite platform for Middle Eastern, European, Asian and international programming, AsiaSat 8 will provide exceptional power and additional Ku beam coverage with inter-beam switching capability for services including DTH television, private networks and broadband services. AsiaSat 8, planned to be launched in the first half of 2014, will be the most powerful member of AsiaSats fleet, with a payload power of about 8,500 watts. AsiaSat 8 Link to comment Share on other sites More sharing options...
DocM Posted July 17, 2014 Author Share Posted July 17, 2014 We have a date, Falcon 9 / ASIASAT-8 Launch: August 4, 2014 Locale: KSC LC-40 Window: 0125-0325 Local (EDT) Range Approved Link to comment Share on other sites More sharing options...
DocM Posted July 18, 2014 Author Share Posted July 18, 2014 Looks like both AsiaSat 8 and AsiaSat 6 have been ready to ship since March, perfect for an accelerated back-to-back campaign before Dragon CRS-4. Also found out the LS-1300 bus is larger than I thought. It's a total brick at ~6,700kg, depending on what they hang on it. http://spaceflightnow.com/falcon9/010/140421manifest/#.U8k-hXrD_qA AsiaSat 8 and AsiaSat 6 each passed a "pre-ship review" in early March, a milestone marking the completion of manufacturing and testing of a satellite before shipment to the launch site, according to Roger Tong, AsiaSat's vice president of engineering and operations. Link to comment Share on other sites More sharing options...
flyingskippy Posted July 18, 2014 Share Posted July 18, 2014 6700kg to GTO? SpaceX lists the F9 as being able to deliver only 4850kg to GTO. I know SES signed contracts for payloads 10% heavier, but 6700 is quite a bit more. Link to comment Share on other sites More sharing options...
DocM Posted July 18, 2014 Author Share Posted July 18, 2014 Yeah, that chassis is a brick. Two factors, 1) most all of F9's margins are going to be used. That pushes the F9's mass to all orbits WAY up. In this mode its LEO performance is almost 17,000 kg. Still short for the regular GTO orbit for a sat this size though. 2) the new AsiaSats have an ion drive, an electric space drive using Hall Effect ion thrusters. This allows options, one being the launcher to put it into a super-synchronous transfer orbit**, which the satellites propulsion can then circularize to GEO. A LOT of satellites are getting ion thrusters of various types, ranging from big Hall Effect or plasma thrusters to postage stamp size units for cubesats. These open up a lot of cheap launcher and deorbit (space junk mitigation) options. Sci-Fi fans know ion or plasma drives by another name: impulse drive, as in Star Trek but not as high powered. Trek uses a fusion pumped ion/plasma drive and guess what? That too is coming with 2 groups working on it. Try a Mars trip in under 40 days. ** a perigee of a few hundred kilometers, but an apogee of 90,000+ km. Paradoxically, this lowers the required launcher delta-v performance from 1800 km/s to only 1500 km/s. Link to comment Share on other sites More sharing options...
DocM Posted July 22, 2014 Author Share Posted July 22, 2014 Falcon 9 - AsiaSat 8 Local = EDT Static fire: July 29, 1300 Local Launch: August 4, 0125-0325 Local, 0525-0725 GMT (Range Approved) Alternate launch: August 5, 0125-0325 Local, 0525-0725 GMT Link to comment Share on other sites More sharing options...
ImUtrecht Posted July 24, 2014 Share Posted July 24, 2014 I know that F9v1.1 has an overcapacity. Almost 2000 kg more to geo is a lot. I suppose that they take measures to save weight like leaving the landing legs of the booster ? Link to comment Share on other sites More sharing options...
DocM Posted July 24, 2014 Author Share Posted July 24, 2014 Check 2 posrs above your post. The satellite has hypergolic thrusters that help with getting the extra 300 km/s of delta-v required (1500 to 1800) to go from the supersynchronous transfer orbit to GEO, then it uses an ion drive for station keeping in GEO. Link to comment Share on other sites More sharing options...
ImUtrecht Posted July 24, 2014 Share Posted July 24, 2014 I already did read those. So they keep the leg configuration. And two launches in one month, i hope they pull it off. Link to comment Share on other sites More sharing options...
DocM Posted July 24, 2014 Author Share Posted July 24, 2014 No legs on AsiaSats, not enough propellant. The next legs are CRS-4. Link to comment Share on other sites More sharing options...
ImUtrecht Posted July 27, 2014 Share Posted July 27, 2014 So i image they do everything to save weight on the booster. No legs, no fuel for the thrusters etc. i heard the upper stage has a fuel margin as well, are they going to top it off ? Cool the propellant for higher density ? 6700 kg to geo, arianespace must have bellyache... Link to comment Share on other sites More sharing options...
DocM Posted July 27, 2014 Author Share Posted July 27, 2014 And just think, a Falcon Heavy Reusable (FHR) will be able to do >7,000 kg to GTO without orbital shenanigans. FHR will be the default configuration from the get-go. Arianespace members are talking about a major restructuring because of competition from SpaceX, Blue Origin on a ramp up to their EELV class reusable booster and the expected Antares upgrade. Headaches all around. There's a possibility of a short slip in the AsiaSat 8 launch date. The problem isn't with SpaceX but with a Delta IV launch that has slipped 3 times (and counting). Next try Monday, maybe. Link to comment Share on other sites More sharing options...
DocM Posted July 29, 2014 Author Share Posted July 29, 2014 Delayed to August 5. Bumped by an Atlas V launch, which in turn was bumped several times by a Delta IV scrubbing. This is why they want the Texas spaceport so badly. @SCLAUNCH321 Range schedule change: falcon static fire 7/31 Atlas launch 8/1 2323-2341 Falcon launch 8/5 0125-0325 ** https://twitter.com/SCLAUNCH321/status/494183165276069890 Link to comment Share on other sites More sharing options...
DocM Posted July 31, 2014 Author Share Posted July 31, 2014 F9 is upright on the pad for the static fire test. Link to comment Share on other sites More sharing options...
DocM Posted August 4, 2014 Author Share Posted August 4, 2014 Weather is at 70% for an Aug. 5 0125-0325-Local launch. Hurricane Bertha is 550+ miles NorthEast and heading North. Link to comment Share on other sites More sharing options...
DocM Posted August 4, 2014 Author Share Posted August 4, 2014 LiveStream coverage at 1:25 AM EDT Tuesday August 5. http://new.livestream.com/spacex/AsiaSat8 Link to comment Share on other sites More sharing options...
DocM Posted August 5, 2014 Author Share Posted August 5, 2014 YouTube live event (something new) If you have a stream capable device (game box, ROKU, BR deck w/internet etc.) you may be able to put it on your TV. http://www.youtube.com/watch?v=B9sTMJJggZA Link to comment Share on other sites More sharing options...
DocM Posted August 5, 2014 Author Share Posted August 5, 2014 Prop load should have started. Link to comment Share on other sites More sharing options...
Beittil Posted August 5, 2014 Share Posted August 5, 2014 Well, another last moment abort... This is really the sort of thing they neer to get under control :( Link to comment Share on other sites More sharing options...
DocM Posted August 5, 2014 Author Share Posted August 5, 2014 Sensor picked up a slightly off hydraulic reading. Never know with those if it's the sensor or the system, so the computer is told to play it safe with that $100m payload. Recycling the count to T-20 minutes. Another attempt after 0300 Local. There's time as the launch window was extended a couple of days ago. Window closes at 0811 UTC (0611 EDT). Link to comment Share on other sites More sharing options...
DocM Posted August 5, 2014 Author Share Posted August 5, 2014 End of window is 0411 Eastern, not 0611. Typo. Link to comment Share on other sites More sharing options...
DocM Posted August 5, 2014 Author Share Posted August 5, 2014 Counting down for a T-0 of 0400 Eastern. Link to comment Share on other sites More sharing options...
DocM Posted August 5, 2014 Author Share Posted August 5, 2014 Liftoff!! MECO, stage 2 separation Steven P. 1 Share Link to comment Share on other sites More sharing options...
Beittil Posted August 5, 2014 Share Posted August 5, 2014 Nice and clean launch there :) Fairing sep was good also! Link to comment Share on other sites More sharing options...
DocM Posted August 5, 2014 Author Share Posted August 5, 2014 SECO-1, in orbit, orbital parameters good. GTO insertion burn later. Link to comment Share on other sites More sharing options...
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