Correction: Yearly SSR achieved orbit/catalog count

From: John Gardner (gardjw@juno.com)
Date: Mon Mar 06 2000 - 19:18:51 PST

  • Next message: nixj@bellsouth.net: "Obs Mar 7"

    Hello All,
    
    An off topic item...correction and withdrawal.
    
    Corrected yeary orbiting achieved count and last yearly cataloged object.
    Please see note at bottom of message for explaination.  Also note SSR
    errors found for years I was able to review.
    
     
    ===========================================================================
    
    Based on OIG/GSFC Satellite Situation Report vol 41 #2 released Mar 3,
    2000
    count of objects achieving orbit each of the past 43 years.
    
    Fourth number (unknowns) on each line below is
    non-earth/determined/released
    count of objects. Currently about 133 objects of the 627 unknowns have
    been
    _published_ as being non-earth orbit.  The rest, no info known or
    classified
    objects.
    
     SSR          #objects
    report  year  orbiting  unknowns   last NORAD cataloged object each year
    
     41.2   2000    8772      627      26097   to Feb 29 (SSR v41#2)  agrees
    
     40.12  1999    9159      625      26051   <>  26045 v40#12 Dec 31 1999
                                                    ( missed 26046-26051 )
     39.12  1998    9117      600      25604   <>  25603 v39#12 Dec 31 1998
                                                      ( missed 25604 )
     38.12  1997    9057      585      25130              agrees
     37.12  1996    8878      572      24710   <>  24703 v37#12 Dec 31 1996
                                                    ( missed 24704-24710 )
     36.12  1995    8111      542      23761   <>  23777 v36#12 Dec 31 1995
                                                  ( has 17 1996 cat items )
    
     35      --      --        -         -   SSR volumn label skipped by OIG
    
     34.12  1994    7999      521      23460   <>  23477 v34#12 Dec 31 1994
                                                  ( has 17 1995 cat items )
     33.4   1993    7726      434      22956   <>  22971 v33#4  Dec 31 1993
                                                  ( has 15 1994 cat items )
            1992    7440      418      22306
            1991    7537      398      21843
     30.4   1990    7303      388      21046   <>  21063 v30#4 Dec 31 1990
                                                 ( has 17 1991 cat items )
    
     29.4   1989    7733      358      20400             v29#4 12/31/89
     28     1988    8035      334      19748
            1987    7663      322      18747
            1986    6751      309      17289
            1985    6368      301      16446
            1984    5965      287      15463
            1983    5620      264      14610
            1982    5341      242      13756
            1981    5548      236      13321
            1980    4927      226      12129
    
            1979    5081      214      11651
            1978    5193      204      11228
            1977    5050      188      10553
            1976    4828      160       9657
            1975    4186      133       8529
            1974    3625      118       7603
            1973    3663      112       7093
            1972    3267       96       6332
            1971    3029       88       5763
            1970    2400       71       4844
    
            1869    2181       67       4291
            1968    1835       55       3641
            1967    1621       49       3090
            1966    1683       41       2638
            1965    1352       27       1902
            1964     642       19        967
            1963     491       13        726
            1962     425       12        520
            1961     185        4        220
            1960      57        1         69
    
            1959      21        -         26
            1958       9        -         10
            1957       3        -          3
    
    The program correctly read the data from the SSR, but, and thanks to
    point raised by, Jay Respler, I remembered most debris cospars are not
    associated with the _actual_ launch year of the parent object.  Or to
    put it another way: The SSR has a 'limitation' for me (Ha!) in publishing
    the parent launch date for a debris item in lieu of the actual
    _discovery_
    date of the object. Granted the item was indeed launch as stated, but not
    separated until later.  No problem with the actual cospar...its essential
    as is and must _not_ be changed!
    
    Program has been corrected (v3.0) but withdrawn due to requirement of
    yearly updates. :-(   Should OIG decide to change the policy.... :-)
    
    Program has ability to filter out invalid re-cataloged objects. Objects
    having cospars associated with a NORAD number that existed prior to
    year it was "launched".  I'll provide a list soon.
    
    John Gardner
    
    gardj@sprynet.com
    
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