Quote from: input~2 on 09/30/2013 06:43 amUsing the latest TLEs for the 20 objects now in the catalog (A to T):- perigee altitudes range from 235 km (F) to 444 km (M)- apogee altitudes range from 1350 km (A) to 1590 km (S)- inclinations range from 80.961° (A) to 81.035° (K)So that's confirmation that it disintegrated?
Using the latest TLEs for the 20 objects now in the catalog (A to T):- perigee altitudes range from 235 km (F) to 444 km (M)- apogee altitudes range from 1350 km (A) to 1590 km (S)- inclinations range from 80.961° (A) to 81.035° (K)
Does that count of 20 include CASSIOPE and the secondary payloads, or does it exclude it?
It's worth posting this video taken from the ground, as it shows the first stage firing in puffs shortly after stage separation - our first look at the first stage deceleration burns! (from 4:00 onwards)
Thanks. I didn't know about the DANDE adapter (is there a paper or something that describes this?)
Quote from: Star One on 09/30/2013 06:54 amQuote from: input~2 on 09/30/2013 06:43 amUsing the latest TLEs for the 20 objects now in the catalog (A to T):- perigee altitudes range from 235 km (F) to 444 km (M)- apogee altitudes range from 1350 km (A) to 1590 km (S)- inclinations range from 80.961° (A) to 81.035° (K)So that's confirmation that it disintegrated?20 objects is much too few for a stage breakup event. 6 nanosats, upper stage, and CASSIOPE takes care of 8 objects.Edit: Another object appeared, so thats now 21. This is getting odd.Edit2: NVM, appears to be related to ASTRA 2E.
There was a sighting of the upper stage over southern Africa. Not sure if this adds any evidence for or against the hypothesis that there might have been an energetic breakup but it is still pretty cool. It reminds me of the sighting over Australia of a previous Falcon upper stage. http://www.nbcnews.com/science/ufo-over-indian-ocean-spacex-falcon-9-rocket-sparks-sightings-4B11297922
Elon Musk@DebbieViviers @SpaceX Yes, upper stage venting of liquid oxygen created a fast moving fuzzy white sphere in space over SA
I'm of the mind that those mystery puffs we are seeing in that video are not first stage related, but are rapidly expanding gas from the exhaust of the MVac on the second stage. Based on when the call over countdown net referenced the relight of the first stage engines, that happened much later than this.
Quote from: Silmfeanor on 09/30/2013 12:36 amAnd one of the passengers, DANDE, has TLE's and has seen spacecraft beacons.http://spacegrant.colorado.edu/boulderstudents/boulderprojects/dandeDANDE1 99999U 00000U 13272.68162153 .00000351 00000-0 12139-4 0 000042 99999 080.9969 315.2113 0796928 158.5047 042.9913 13.96429132000014I get a 328 x 1493 km x 80.97 deg orbit, close to the planned 324 x 1,500 km x 80 deg. The biggest divergence is inclination. - Ed Kyle
And one of the passengers, DANDE, has TLE's and has seen spacecraft beacons.http://spacegrant.colorado.edu/boulderstudents/boulderprojects/dandeDANDE1 99999U 00000U 13272.68162153 .00000351 00000-0 12139-4 0 000042 99999 080.9969 315.2113 0796928 158.5047 042.9913 13.96429132000014
How do you do this actually? Is there a quick and dirty calculation that can be performed?
Quote from: edkyle99 on 09/30/2013 02:31 amQuote from: Silmfeanor on 09/30/2013 12:36 amAnd one of the passengers, DANDE, has TLE's and has seen spacecraft beacons.http://spacegrant.colorado.edu/boulderstudents/boulderprojects/dandeDANDE1 99999U 00000U 13272.68162153 .00000351 00000-0 12139-4 0 000042 99999 080.9969 315.2113 0796928 158.5047 042.9913 13.96429132000014I get a 328 x 1493 km x 80.97 deg orbit, close to the planned 324 x 1,500 km x 80 deg. The biggest divergence is inclination. - Ed KyleHow do you do this actually? Is there a quick and dirty calculation that can be performed?