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: 10/23/2025
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 05:26:24 -69.47, -83.60 96.12 11/01/2025 05:27:34 -69.42, -82.27 96.14 52.18 70
2 11/01/2025 06:17:00 68.94, 84.46 83.38 11/01/2025 06:18:10 68.94, 84.44 83.38 0.73 70
3 11/01/2025 07:07:44 -68.95,-108.23 96.61 11/01/2025 07:08:40 -68.94,-108.17 96.61 2.31 56
4 11/01/2025 07:58:29 68.89, 59.15 83.35 11/01/2025 07:59:08 68.89, 59.14 83.35 0.78 39
5 11/01/2025 08:49:13 -68.90,-133.54 96.64 11/01/2025 08:49:38 -68.89,-133.48 96.64 2.30 25
6 11/01/2025 09:39:58 68.84, 33.85 83.32 11/01/2025 09:40:06 68.84, 33.83 83.32 0.82 8
7 11/01/2025 10:30:42 -68.85,-158.84 96.67 11/01/2025 10:30:36 -68.84,-158.79 96.67 2.32 6
8 11/01/2025 11:21:27 68.79, 8.54 83.29 11/01/2025 11:21:04 68.78, 8.53 83.29 0.83 23
9 11/01/2025 12:12:11 -68.79, 175.85 96.69 11/01/2025 12:11:34 -68.79, 175.91 96.70 2.36 37
10 11/01/2025 13:02:56 68.74, -16.76 83.27 11/01/2025 13:02:02 68.73, -16.78 83.26 0.83 54
11 11/01/2025 13:53:40 -68.74, 150.55 96.72 11/01/2025 13:52:32 -68.74, 150.61 96.73 2.42 68
12 11/01/2025 14:44:18 68.31, -41.57 82.87 11/01/2025 14:43:07 68.30, -42.57 82.84 41.17 71
13 11/01/2025 15:34:53 -67.84, 126.35 97.58 11/01/2025 15:33:45 -67.88, 124.27 97.59 87.20 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 10/23/2025
SNOs_Map_NPP_GCOM-C_20251023.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 10/23/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C