Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NPP and GCOM-C Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/26/2025
Index Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Date (GCOM-C) Time (GCOM-C) Lat,Lon (GCOM-C) SZA (GCOM-C ) Distance(km) Time Diff (sec)
1 05/03/2025 17:27:01 -69.81, 95.17 126.19 05/03/2025 17:28:09 -69.75, 97.14 126.26 76.17 68
2 05/03/2025 18:17:35 69.17, -96.60 53.15 05/03/2025 18:18:48 69.11, -96.39 53.09 10.47 73
3 05/03/2025 19:08:17 -69.07, 70.86 126.96 05/03/2025 19:09:19 -69.06, 70.92 126.97 2.55 62
4 05/03/2025 19:59:02 69.01,-121.75 52.97 05/03/2025 19:59:47 69.00,-121.78 52.96 1.41 45
5 05/03/2025 20:49:46 -69.01, 45.56 127.04 05/03/2025 20:50:17 -69.00, 45.61 127.05 2.28 31
6 05/03/2025 21:40:31 68.95,-147.05 52.89 05/03/2025 21:40:45 68.94,-147.09 52.88 1.85 14
7 05/03/2025 22:31:15 -68.96, 20.26 127.11 05/03/2025 22:31:15 -68.95, 20.30 127.12 2.08 0
8 05/03/2025 23:22:00 68.90,-172.35 52.82 05/03/2025 23:21:43 68.89,-172.40 52.81 2.27 17
9 05/04/2025 00:12:44 -68.91, -5.05 127.19 05/04/2025 00:12:13 -68.90, -5.01 127.20 1.96 31
10 05/04/2025 01:03:29 68.85, 162.34 52.75 05/04/2025 01:02:41 68.83, 162.29 52.73 2.67 48
11 05/04/2025 01:54:13 -68.86, -30.35 127.26 05/04/2025 01:53:11 -68.84, -30.32 127.27 1.94 62
12 05/04/2025 02:44:55 68.63, 137.26 52.51 05/04/2025 02:43:42 68.62, 136.77 52.50 20.01 73
13 05/04/2025 03:35:30 -68.16, -54.81 127.98 05/04/2025 03:34:20 -68.19, -56.40 127.93 66.01 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 4/26/2025
SNOs_Map_NPP_GCOM-C_20250426.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 04/26/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C