RE: Japansese First Military Sat

From: Ted Molczan (molczan@rogers.com)
Date: Thu Mar 27 2003 - 21:16:13 EST

  • Next message: moriboo@jcom.home.ne.jp: "Japanese IGS Launched" 

    Spaceflight Now reports that the satellites have been launched.

I find two different orbits that roughly fit the stated/implied criteria:

- sun-synchronous

- 400 to 500 km

- circular

- ground track repeats after 4 days

1 72000U          03087.06528000  .00010000  00000-0  39104-3 0    02
2 72000  97.3694 157.9000 0000100   0.0000 150.0000 15.25890000    08

1 72000U          03087.06528000  .00050000  00000-0  39005-3 0    06
2 72000  97.0943 157.7000 0000100   0.0000 150.0000 15.50850000    04

My guess is that both payloads will be in the first of the above.

I based these orbits in part on the launches of JERS 1 and Adeos 1, so they
should be reasonably predictive.

Though the satellites are considered classified by Japan, I believe that the
U.S.A. will issue elements for them.

Ted Molczan


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