H-2A/GPM launch visibility

From: C. Bassa <cgbsat_at_gmail.com>
Date: Thu, 27 Feb 2014 11:47:27 +0100
The GPM Core satellite will be launched aboard a H-2A from Tanegashima
between 18:37 and 19:37UT today.


The target orbit is listed as 407 km circular with an inclination of
65 degrees. Impact areas for the SRBs, fairing and first stage suggest
that a dogleg trajectory is used during launch:

With this trajectory the satellite, and possibly the last stage, will
overfly Europe about an hour after launch.

Based on the limited amount of information available I estimate the
following elements assuming an on time launch at 18:37UT.

1 85010U 14900A   14058.77569444  .00000000  00000-0  50000-4 0    01
2 85010  65.0000  56.0000 0001000   0.0000  115.0000 15.53335272   04

Note that these elements are a guess. The dogleg trajectory makes it
hard to estimate the RAAN. Even when launched on time, it could well
be early or late by a few minutes and off by a few degrees.

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Received on Thu Feb 27 2014 - 10:47:46 UTC

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