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: 10/13/2025
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, 97.92 79.48 10/19/2025 05:21:04 69.43, 99.31 79.42 54.93 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 7.30 73
3 10/19/2025 07:01:13 68.93, 73.37 78.93 10/19/2025 07:02:10 68.94, 73.39 78.95 1.67 57
4 10/19/2025 07:51:57 -68.92,-119.31 101.07 10/19/2025 07:52:40 -68.93,-119.24 101.05 3.17 43
5 10/19/2025 08:42:42 68.87, 48.07 78.90 10/19/2025 08:43:08 68.88, 48.08 78.91 0.98 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 2.61 12
7 10/19/2025 10:24:11 68.82, 22.76 78.88 10/19/2025 10:24:06 68.82, 22.77 78.88 0.31 5
8 10/19/2025 11:14:55 -68.82,-169.91 101.12 10/19/2025 11:14:36 -68.82,-169.86 101.12 2.13 19
9 10/19/2025 12:05:40 68.77, -2.54 78.85 10/19/2025 12:05:04 68.77, -2.55 78.85 0.37 36
10 10/19/2025 12:56:24 -68.77, 164.78 101.14 10/19/2025 12:55:34 -68.76, 164.83 101.15 1.79 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 1.02 67
12 10/19/2025 14:37:49 -68.50, 139.76 101.38 10/19/2025 14:36:36 -68.49, 139.23 101.40 21.63 73
13 10/19/2025 15:28:23 67.86, -52.11 78.01 10/19/2025 15:27:15 67.84, -54.20 77.95 87.75 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 10/13/2025
SNOs_Map_NPP_GCOM-C_20251014.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 10/13/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C