orbit epoch 00:18 00:18 02:16 02:16 04:13 04:13 06:10 06:10 08:07 08:07 10:04 10:04 12:02 12:02 13:59 13:59 15:56 15:56 17:53 17:53 19:50 19:50 21:48 21:48 23:45 23:45