Re: Falcon 9 R/B Identified

From: Dr. T.S. Kelso (TS.Kelso@celestrak.com)
Date: Sat Oct 05 2013 - 22:52:02 UTC

  • Next message: Kevin Fetter: "off topic = 2 upcoming bright star lunar occultation for north america"

    Sound good, Greg. And I'll check out your FB page next.
    
    As promised, here are the latest supplemental TLEs produced from the 
    SpaceX deployment state vectors and CASSIOPE GPS data. The data used for 
    each TLE is shown in brackets after the name. The TLEs are based on data 
    for Oct 6 @ 0000 UTC to Oct 7 @ 0000 UTC and agree with the numerically 
    propagated orbits to about 1 km over that time.
    
    Note that the GPS-derived position for CASSIOPE is currently about 90 km 
    **behind** the position based on its SpaceX deployment state vector, 
    which might suggest that all of the SpaceX-based TLEs should be shifted 
    12 seconds in track, as well. This could be due to differences in 
    atmospheric drag or the small deployment velocities. In other words, you 
    need to be prepared to search along track 12-15 seconds to find these 
    objects.
    
    I am also providing the latest TLEs for OBJECT B and G. It might be 
    prudent to look there, as well, to see what, if anything, is visible.
    
    2013-055B
    
    1 39266U 13055B   13277.72822065  .00014819  00000-0 46837-3 0   155
    
    2 39266  81.0122 310.0473 0803021 144.4731 221.2714 13.96972458 719
    
    FALCON 9 R/B
    
    1 39271U 13055G   13278.73100874  .00007483  00000-0 23458-3 0    63
    
    2 39271 081.0126 309.0546 0803440 141.6624 224.4263 13.96983786   858
    
    CASSIOPE [GPS]
    
    1 80001U          13279.50000000 .00008363  00000-0  28830-3 0 00036
    
    2 80001 080.9946 308.4601 0796880 139.5295 120.8316 13.96519087000089
    
    DANDE [SpaceX]
    
    1 80002U 13279.50000000  .00007307  00000-0  25223-3 0 00037
    
    2 80002 080.9954 308.4597 0796807 139.5466 120.8037 13.96506237000085
    
    CUSAT [SpaceX]
    
    1 80003U 13279.50000000  .00010823  00000-0  37343-3 0 00031
    
    2 80003 080.9954 308.4591 0796496 139.5418 122.0702 13.96580803000085
    
    POPACS-1 [SpaceX]
    
    1 80004U 13279.50000000  .00013471  00000-0  46485-3 0 00031
    
    2 80004 080.9954 308.4591 0796424 139.5487 121.9660 13.96594234000087
    
    POPACS-2 [SpaceX]
    
    1 80005U 13279.50000000  .00009499  00000-0  32785-3 0 00035
    
    2 80005 080.9954 308.4594 0796646 139.5497 121.3115 13.96541459000088
    
    POPACS-3 [SpaceX]
    
    1 80006U 13279.50000000  .00007509  00000-0  25920-3 0 00039
    
    2 80006 080.9954 308.4595 0796757 139.5502 120.9835 13.96515014000082
    
    
    Happy hunting!  - TS
    
    Dr. T.S. Kelso
    CelesTrak, http://celestrak.com
    E-Mail: TS.Kelso@celestrak.com
    
    On 2013-10-05 12:01, Greg Roberts wrote:
    > Hi Tom
    >
    > Thanks for the posting - makes me happy as I wouldnt be able to 
    > seperate 2-3km seperation with the aperture resolution I was using. Im 
    > not too happy with the CASSIOPE situation though - I basically found 
    > one very bright object - the rocket, one object at about mag 7-8 and 
    > two at about magnitude +10, so Im inclined to say that the 7th 
    > magnitude object was CASSIOPE - Mike called it OBJECT T in my posting 
    > to SeeSat - (I originally called it OBJECT F ). I can send you some 
    > images if you dont have access to my FACEBOOK page where I have posted 
    > what images I found in my search for the FALCON 9 objects. Ill do 
    > another search later in the week- first want to get the JUNO flyby out 
    > the way on Oct 9 and can then change my optics to something more 
    > suitable for faint object - ie use larger aperture.
    > Cheers
    > Greg
    >
    >
    >
    
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