Re: Payload D (?); Intelsat 512; re: missing numbers

From: Vitek, Antonin (avitek@LIB.CAS.CZ)
Date: Sat Dec 28 2002 - 20:28:14 EST

  • Next message: David Brierley: "DMB Obs Dec 27"

    Ed Cannon wrote:
    > 
    > On Dec. 25 UTC I had a prediction for and seem to have
    > observed "Payload D" (27608, 02-058D).  It was tumbling
    > and flashing, including one flash of at least +1 if not
    > brighter at about 1:14:02 (from San Antonio, Texas,
    > 29.40N, 98.66W, 200m).  I wonder about its true identity,
    > as my understanding is that most of the payloads on that
    > launch were microsatellites.  Here are two elsets, the
    > one for that night and a more recent one:
    > 
    > PAYLOAD D                                        667 x 636
    > 1 27608U 02058D   02357.55206756  .00002169  00000-0  35645-3 0    86
    > 2 27608  64.5615  10.3438 0022440 134.5032 225.7908 14.72948985   427
    > Payload D (Saudisat 2?)                          668 x 636 km
    > 1 27608U 02058D   02361.55783605  .00001644  00000-0  27529-3 0   117
    > 2 27608  64.5605 358.1534 0022435 132.4793 227.8209 14.72961730  1017
    > 
    > A while ago I observed Intelsat 512 (85-087A, 16101) from
    > about 7:14:44.7 until 7:26:51.5, with a 128.27-second gap
    > around the phase shift, when it was too faint for my 10x50
    > binocs.  This was from right outside my apartment (30.309N,
    > 97.728W, 150m), which is very light-polluted, so I did not
    > try to see it without binoculars, although the brightest
    > flashes might have been bright enough, at least under
    > somewhat better circumstances.  (A while before that, I
    > saw Superbird A from San Antonio, about 147 km from my
    > apartment in Austin.  I wonder how often satellites are
    > observed by one person from two cities in one night....)
    
    > Object 27405 was later identified as something else:
    > 
    > Internatnl
    > Designator   CatNo Common Name               Source LaunchDate
    > ------------ ----- ------------------------- ------ ----------
    > 1990-065W    27405 CRRES DEB (CANISTER)      US     1990/07/25
    > 
    > That's from http://satobs.org/seesat/Apr-2002/0241.html .
    >
    
    Yes, but it is interesting, that no TLEs are displayed for this object.
    I did'nt catched on OIG message about the decay of 27405 (in the last
    Satellite Status Repost I downloaded [dated 2002-11-01] is included as
    orbiting  P = 486.7 min, Hp = 487 km, Ha = 27949 km, i = 18.0 deg.). I
    am on holidays at home now, with rather slow I-net access (via phone
    line), therefore I'l wait with the downloading new SSR till Jan 6th. 
    
    Cf. http://www.lib.cas.cz/www/space.40/1990/I065.HTM
    
    then click on "Start" (ie. Launch) button. 27405 is almost on the bottom
    of the page. The headings in the table:
    
    COSPAR 		COSPAR Id.
    SSC 		Catalogue No.
    Zem		Country (owned by, three letter ISO code)
    Zánik 		Decay or landing date (if applicable)
    D		Object status  (G means in geocentric orbit, X decayed, or deorbited,
    or landed) 
    Název objektu 	Object common name (mostly used, or description for
    non-functional objects)
    
    I am sorry, that I was unable to make English version of tables yet, as
    I promised some time ago. But .... (add reasons please yourselves).
    
    
    Furthermore, no entry for 27406 and 27407 exists in the same SSR issue.
    
    -- 
    Mgr. Antonin Vitek, CSc.
    Office: Main Library, Academy of Sciences of the Czech Republic
      Narodni 3, CZ-11522 Praha 1 - Phone: +420/221 403 255, fax +420/224
    240 611
    Home: Kytin 127, CZ-25210 Mnisek p. B., Czech Republic
    Phone: +420/318 592 865, cell +420/603 148 201 - Coord.: 14.2194 deg E,
    49.8488 deg N, 442 m ASL
    My satellite home page: http://www.lib.cas.cz/www/space.40/index.html
    
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