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: 5/11/2025
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 05/16/2025 17:33:32 69.57, -86.10 50.20 05/16/2025 17:34:42 69.49, -84.79 50.10 51.94 70
2 05/16/2025 18:24:07 -69.09, 81.91 130.31 05/16/2025 18:25:20 -69.06, 81.99 130.34 4.56 73
3 05/16/2025 19:14:51 68.99,-110.65 49.59 05/16/2025 19:15:48 69.01,-110.69 49.61 2.92 57
4 05/16/2025 20:05:35 -68.98, 56.68 130.43 05/16/2025 20:06:18 -69.01, 56.68 130.40 3.04 43
5 05/16/2025 20:56:20 68.94,-135.95 49.52 05/16/2025 20:56:46 68.96,-136.00 49.54 3.16 26
6 05/16/2025 21:47:04 -68.93, 31.37 130.50 05/16/2025 21:47:16 -68.96, 31.38 130.47 3.32 12
7 05/16/2025 22:37:50 68.94,-161.33 49.50 05/16/2025 22:37:44 68.91,-161.30 49.48 3.33 6
8 05/16/2025 23:28:33 -68.88, 6.07 130.57 05/16/2025 23:28:15 -68.86, 6.00 130.59 3.56 18
9 05/17/2025 00:19:19 68.89, 173.37 49.44 05/17/2025 00:18:42 68.86, 173.39 49.41 3.07 37
10 05/17/2025 01:10:02 -68.83, -19.23 130.64 05/17/2025 01:09:13 -68.81, -19.30 130.65 3.37 49
11 05/17/2025 02:00:48 68.83, 148.07 49.37 05/17/2025 01:59:40 68.81, 148.09 49.35 2.82 68
12 05/17/2025 02:51:27 -68.56, -44.25 130.92 05/17/2025 02:50:14 -68.60, -44.82 130.88 23.23 73
13 05/17/2025 03:42:01 67.92, 123.88 48.43 05/17/2025 03:40:53 67.95, 121.74 48.48 89.28 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 5/11/2025
SNOs_Map_NPP_GCOM-C_20250511.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 05/11/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C