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Temperature telemetry



Hello,
     My name is Brad Eacker KB6FED.  I decided to see if I could take
a stab at understanding the 'Mystery Effect' that has been discussed.
To that end, I have been taking a look at the telemetry that has been
gathered to date.  Something popped out at me when I started decoding
the telemetry associated with the temperatures on the 6 solar panels.

     I've included at the bottom about an hour's worth of data from
the telemetry in orbit #339.  What confuses me is the temperature
variations from panel to panel.  With a consistent spin wouldn't the
expectation be that all the panels are of a like temperature?  This
would be based upon my belief that during a rotation each panel would
be exposed to the sun for a consistent amount of time.

     Or am I being too simplistic in my model of satellite, spin, and
sun illumination?
                Brad Eacker (beacker@misc.com)
                KB6FED

2001-07-26  02:10:44, -8.4,  2.8,  2.1,  1.5,  1.5, -7.8
2001-07-26  02:11:38, -8.4,  2.8,  2.1,  1.5,  1.5, -7.8
2001-07-26  02:12:04, -8.4,  2.8,  2.1,  1.5,  0.8, -7.8
2001-07-26  02:12:32, -8.4,  2.1,  2.1,  1.5,  0.8, -7.8
2001-07-26  02:12:58, -8.4,  2.1,  2.1,  1.5,  0.8, -7.8
2001-07-26  02:13:26, -8.4,  2.1,  1.5,  1.5,  0.8, -7.8
2001-07-26  02:13:52, -8.4,  2.1,  1.5,  0.8,  0.8, -7.8
2001-07-26  02:14:20, -8.4,  2.1,  1.5,  0.8,  0.8, -7.8
2001-07-26  02:14:46, -8.4,  2.1,  1.5,  0.8,  0.8, -7.8
2001-07-26  02:15:13, -8.4,  2.1,  1.5,  0.8,  0.8, -7.8
2001-07-26  02:15:40, -8.4,  2.1,  1.5,  0.8,  0.8, -7.8
2001-07-26  02:15:53, -8.4,  2.1,  1.5,  0.8,  0.8, -7.8
2001-07-26  02:16:20, -8.4,  2.1,  1.5,  0.8,  0.8, -7.8
2001-07-26  02:16:46, -8.4,  2.1,  1.5,  0.8,  0.2, -7.8
2001-07-26  02:17:13, -8.4,  1.5,  1.5,  0.8,  0.2, -7.8
2001-07-26  02:17:40, -8.4,  1.5,  1.5,  0.8,  0.2, -7.8
2001-07-26  02:18:07, -8.4,  1.5,  0.8,  0.8,  0.2, -7.8
2001-07-26  02:18:34, -8.4,  1.5,  0.8,  0.8,  0.2, -7.8
2001-07-26  02:19:01, -8.4,  1.5,  0.8,  0.2,  0.2, -7.8
2001-07-26  02:19:27, -8.4,  1.5,  0.8,  0.2,  0.2, -7.8
2001-07-26  02:19:55, -8.4,  1.5,  0.8,  0.2,  0.2, -7.8
2001-07-26  02:20:21, -8.4,  1.5,  0.8,  0.2,  0.2, -7.8
2001-07-26  02:20:49, -8.4,  1.5,  0.8,  0.2,  0.2, -7.8
2001-07-26  02:21:15, -8.4,  1.5,  0.8,  0.2,  0.2, -7.8
2001-07-26  02:21:29, -8.4,  1.5,  0.8,  0.2,  0.2, -7.8
2001-07-26  02:21:42, -9.1,  1.5,  0.8,  0.2,  0.2, -7.8
2001-07-26  02:21:56, -8.4,  1.5,  0.8,  0.2, -0.5, -7.8
2001-07-26  02:22:10, -9.1,  1.5,  0.8,  0.2, -0.5, -7.8
2001-07-26  02:22:23, -9.1,  1.5,  0.8,  0.2, -0.5, -7.8
2001-07-26  02:22:37, -9.1,  1.5,  0.8,  0.2, -0.5, -7.8
2001-07-26  02:22:51, -9.1,  1.5,  0.8,  0.2, -0.5, -7.8
2001-07-26  02:23:04, -9.1,  0.8,  0.8,  0.2, -0.5, -7.8
2001-07-26  02:23:18, -9.1,  0.8,  0.8,  0.2, -0.5, -7.8
2001-07-26  02:23:32, -9.1,  0.8,  0.8,  0.2, -0.5, -7.8
2001-07-26  02:23:45, -9.1,  0.8,  0.8,  0.2, -0.5, -7.8
2001-07-26  02:23:59, -9.1,  0.8,  0.2,  0.2, -0.5, -7.8
2001-07-26  02:24:13, -9.1,  0.8,  0.2,  0.2, -0.5, -7.8
2001-07-26  02:24:26, -9.1,  0.8,  0.2,  0.2, -0.5, -7.8
2001-07-26  02:24:40, -9.1,  0.8,  0.2,  0.2, -0.5, -7.8
2001-07-26  02:24:54, -9.1,  0.8,  0.2,  0.2, -0.5, -8.4
2001-07-26  02:25:07, -9.1,  0.8,  0.2, -0.5, -0.5, -7.8
2001-07-26  02:25:21, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:25:48, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:26:02, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:26:16, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:26:29, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:26:43, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:26:57, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:27:10, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:27:24, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:27:38, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:27:51, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:28:07, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:28:21, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:28:35, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:28:48, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:29:02, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:29:16, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:29:43, -9.1,  0.8,  0.2, -0.5, -0.5, -8.4
2001-07-26  02:29:57, -9.1,  0.8,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:30:10, -9.1,  0.8,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:30:24, -9.1,  0.8,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:30:50, -9.1,  0.8,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:31:04, -9.1,  0.8,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:31:18, -9.1,  0.8,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:31:31, -9.1,  0.2,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:31:45, -9.1,  0.8,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:31:59, -9.1,  0.2,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:32:12, -9.1,  0.2,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:32:26, -9.1,  0.2,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:32:40, -9.1,  0.2,  0.2, -0.5, -1.2, -8.4
2001-07-26  02:32:53, -9.1,  0.2, -0.5, -0.5, -1.2, -8.4
2001-07-26  02:33:07, -9.1,  0.2, -0.5, -0.5, -1.2, -8.4
2001-07-26  02:33:21, -9.1,  0.2, -0.5, -0.5, -1.2, -8.4
2001-07-26  02:33:34, -9.1,  0.2, -0.5, -0.5, -1.2, -8.4
2001-07-26  02:33:48, -9.1,  0.2, -0.5, -0.5, -1.2, -8.4
2001-07-26  02:34:02, -9.1,  0.2, -0.5, -0.5, -1.2, -8.4
2001-07-26  02:34:15, -9.1,  0.2, -0.5, -0.5, -1.2, -8.4
2001-07-26  02:54:40, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:55:08, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:55:21, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:55:35, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:55:49, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:56:02, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:56:16, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:56:30, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:56:43, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:56:57, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:57:11, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:57:24, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:57:38, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:57:52, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4
2001-07-26  02:58:05, -9.7,  0.2, -0.5, -1.2, -1.8, -8.4

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