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: 10/8/2025
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 69.42, 99.29 79.41 54.94 70
2 10/19/2025 06:10:29 -69.02, -94.07 100.99 10/19/2025 06:11:42 -68.99, -93.93 101.02 7.11 73
3 10/19/2025 07:01:13 68.93, 73.37 78.93 10/19/2025 07:02:10 68.93, 73.38 78.94 0.75 57
4 10/19/2025 07:51:57 -68.92,-119.30 101.07 10/19/2025 07:52:40 -68.93,-119.24 101.06 2.77 43
5 10/19/2025 08:42:42 68.88, 48.06 78.91 10/19/2025 08:43:08 68.87, 48.07 78.90 0.80 26
6 10/19/2025 09:33:26 -68.87,-144.61 101.10 10/19/2025 09:33:38 -68.87,-144.55 101.09 2.20 12
7 10/19/2025 10:24:11 68.83, 22.76 78.88 10/19/2025 10:24:06 68.81, 22.76 78.87 1.31 5
8 10/19/2025 11:14:55 -68.81,-169.91 101.12 10/19/2025 11:14:36 -68.82,-169.87 101.12 1.74 19
9 10/19/2025 12:05:40 68.77, -2.55 78.86 10/19/2025 12:05:04 68.76, -2.56 78.84 1.92 36
10 10/19/2025 12:56:24 -68.76, 164.79 101.15 10/19/2025 12:55:34 -68.76, 164.82 101.16 1.46 50
11 10/19/2025 13:47:09 68.72, -27.85 78.83 10/19/2025 13:46:02 68.70, -27.87 78.80 2.56 67
12 10/19/2025 14:37:49 -68.50, 139.77 101.38 10/19/2025 14:36:36 -68.49, 139.23 101.41 22.02 73
13 10/19/2025 15:28:22 67.81, -52.05 77.96 10/19/2025 15:27:15 67.83, -54.21 77.94 90.97 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 10/8/2025
SNOs_Map_NPP_GCOM-C_20251008.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 10/08/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C