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: 4/24/2025
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 -69.80, 95.18 126.20 05/03/2025 17:28:10 -69.72, 97.09 126.29 73.94 69
2 05/03/2025 18:17:35 69.16, -96.58 53.14 05/03/2025 18:18:48 69.12, -96.37 53.10 9.38 73
3 05/03/2025 19:08:17 -69.06, 70.87 126.97 05/03/2025 19:09:20 -69.02, 70.87 127.01 3.44 63
4 05/03/2025 19:59:02 69.00,-121.74 52.96 05/03/2025 19:59:47 69.01,-121.75 52.98 2.07 45
5 05/03/2025 20:49:46 -69.00, 45.57 127.05 05/03/2025 20:50:17 -69.02, 45.63 127.03 3.40 31
6 05/03/2025 21:40:31 68.94,-147.04 52.89 05/03/2025 21:40:45 68.96,-147.06 52.90 2.03 14
7 05/03/2025 22:31:15 -68.95, 20.27 127.12 05/03/2025 22:31:15 -68.97, 20.32 127.10 3.02 0
8 05/03/2025 23:22:00 68.89,-172.34 52.81 05/03/2025 23:21:43 68.91,-172.37 52.83 2.06 17
9 05/04/2025 00:12:44 -68.90, -5.03 127.20 05/04/2025 00:12:13 -68.91, -4.99 127.18 2.66 31
10 05/04/2025 01:03:29 68.84, 162.36 52.74 05/04/2025 01:02:41 68.85, 162.31 52.75 2.14 48
11 05/04/2025 01:54:13 -68.84, -30.33 127.27 05/04/2025 01:53:11 -68.86, -30.30 127.25 2.31 62
12 05/04/2025 02:44:55 68.62, 137.27 52.50 05/04/2025 02:43:42 68.63, 136.79 52.52 19.44 73
13 05/04/2025 03:35:30 -68.15, -54.80 127.99 05/04/2025 03:34:21 -68.16, -56.45 127.97 68.39 69

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 4/24/2025
SNOs_Map_NPP_GCOM-C_20250424.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 04/24/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C