RE: NOSS 2-1 (E) catalog number

From: Ted Molczan (
Date: Thu Aug 17 2006 - 08:19:41 EDT

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    Ahmadi asked:
    > In the NOSS satellite page of SATOBS 
    >   ((
    > the catalog number for NOSS 2-1 (E) is 20642.
    > But when I use this number in Heavens-Above, it
    > reports the satellite as "Titan 45K-4 Stage 2". 
    > I am almost sure that both Whole Sky Chart and
    > Detailed Star Chart of HA are the same as what one
    > will see in the sky. But the name is not correct.
    > Anybody can help?
    For some of the NOSS, the hobbyist designations differ from the official
    designations. Heavens-Above uses hobbyist NOSS elements, but probably is using
    official designations of the satellites, so some of the designations do not
    As long as you use the designations from the above web page, Heavens-Above will
    provide accurate predictions, despite the differences in designations.
    Ted Molczan
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