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: 10/11/2025
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 10/19/2025 05:19:54 69.51, 97.91 79.48 10/19/2025 05:21:04 69.43, 99.31 79.42 55.19 70
2 10/19/2025 06:10:29 -69.03, -94.08 100.99 10/19/2025 06:11:42 -68.99, -93.92 101.02 7.29 73
3 10/19/2025 07:01:13 68.93, 73.36 78.93 10/19/2025 07:02:10 68.94, 73.39 78.95 1.56 57
4 10/19/2025 07:51:56 -68.87,-119.23 101.12 10/19/2025 07:52:41 -68.88,-119.30 101.10 3.31 45
5 10/19/2025 08:42:42 68.88, 48.06 78.91 10/19/2025 08:43:08 68.88, 48.08 78.91 0.93 26
6 10/19/2025 09:33:26 -68.87,-144.61 101.09 10/19/2025 09:33:38 -68.88,-144.55 101.08 2.90 12
7 10/19/2025 10:24:11 68.83, 22.76 78.88 10/19/2025 10:24:06 68.83, 22.77 78.88 0.42 5
8 10/19/2025 11:14:55 -68.82,-169.91 101.12 10/19/2025 11:14:36 -68.82,-169.86 101.11 2.39 19
9 10/19/2025 12:05:40 68.77, -2.55 78.86 10/19/2025 12:05:04 68.77, -2.54 78.85 0.59 36
10 10/19/2025 12:56:24 -68.77, 164.78 101.14 10/19/2025 12:55:34 -68.77, 164.83 101.15 1.96 50
11 10/19/2025 13:47:09 68.72, -27.85 78.83 10/19/2025 13:46:02 68.71, -27.86 78.81 1.15 67
12 10/19/2025 14:37:49 -68.50, 139.76 101.38 10/19/2025 14:36:36 -68.50, 139.24 101.40 21.45 73
13 10/19/2025 15:28:23 67.86, -52.11 78.02 10/19/2025 15:27:15 67.84, -54.20 77.95 87.56 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 10/11/2025
SNOs_Map_NPP_GCOM-C_20251011.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 10/11/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C