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: 5/5/2025
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 69.58, -86.10 50.20 05/16/2025 17:34:42 69.48, -84.79 50.10 52.08 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 4.17 73
3 05/16/2025 19:14:51 68.99,-110.65 49.59 05/16/2025 19:15:48 69.00,-110.70 49.60 2.30 57
4 05/16/2025 20:05:35 -68.98, 56.68 130.43 05/16/2025 20:06:18 -69.01, 56.69 130.40 3.45 43
5 05/16/2025 20:56:20 68.94,-135.95 49.52 05/16/2025 20:56:46 68.95,-136.00 49.54 2.46 26
6 05/16/2025 21:47:04 -68.93, 31.38 130.50 05/16/2025 21:47:17 -68.91, 31.31 130.52 3.59 13
7 05/16/2025 22:37:49 68.89,-161.26 49.46 05/16/2025 22:37:44 68.91,-161.31 49.47 2.61 5
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 3.46 18
9 05/17/2025 00:19:18 68.84, 173.44 49.39 05/17/2025 00:18:42 68.86, 173.39 49.41 2.74 36
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 3.32 49
11 05/17/2025 02:00:47 68.79, 148.13 49.32 05/17/2025 01:59:40 68.81, 148.08 49.34 2.87 67
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 23.34 73
13 05/17/2025 03:42:01 67.93, 123.87 48.44 05/17/2025 03:40:53 67.94, 121.74 48.47 89.28 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 5/5/2025
SNOs_Map_NPP_GCOM-C_20250505.jpg

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

Historial Predications of SNOs between NPP and GCOM-C