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: 10/20/2025
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 11/01/2025 05:26:23 -69.46, -83.58 96.13 11/01/2025 05:27:33 -69.42, -82.28 96.15 51.19 70
2 11/01/2025 06:16:59 68.93, 84.47 83.37 11/01/2025 06:18:09 68.93, 84.43 83.37 1.65 70
3 11/01/2025 07:07:43 -68.93,-108.21 96.63 11/01/2025 07:08:39 -68.94,-108.18 96.62 1.41 56
4 11/01/2025 07:58:28 68.88, 59.17 83.34 11/01/2025 07:59:07 68.88, 59.13 83.34 1.71 39
5 11/01/2025 08:49:12 -68.88,-133.52 96.65 11/01/2025 08:49:37 -68.89,-133.48 96.65 1.38 25
6 11/01/2025 09:39:57 68.83, 33.86 83.31 11/01/2025 09:40:05 68.83, 33.82 83.31 1.75 8
7 11/01/2025 10:30:41 -68.83,-158.82 96.68 11/01/2025 10:30:35 -68.84,-158.79 96.68 1.38 6
8 11/01/2025 11:21:26 68.78, 8.56 83.29 11/01/2025 11:21:03 68.77, 8.52 83.28 1.78 23
9 11/01/2025 12:12:10 -68.78, 175.87 96.71 11/01/2025 12:11:33 -68.78, 175.90 96.71 1.41 37
10 11/01/2025 13:02:55 68.73, -16.75 83.26 11/01/2025 13:02:01 68.72, -16.79 83.25 1.78 54
11 11/01/2025 13:53:39 -68.73, 150.56 96.73 11/01/2025 13:52:31 -68.73, 150.60 96.74 1.46 68
12 11/01/2025 14:44:17 68.30, -41.56 82.86 11/01/2025 14:43:06 68.29, -42.59 82.83 42.14 71
13 11/01/2025 15:34:52 -67.83, 126.36 97.59 11/01/2025 15:33:44 -67.87, 124.26 97.59 88.14 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 10/20/2025
SNOs_Map_NPP_GCOM-C_20251020.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 10/20/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C