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: 10/12/2025
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 69.50, 97.94 79.47 10/19/2025 05:21:04 69.44, 99.32 79.43 54.46 70
2 10/19/2025 06:10:29 -69.01, -94.06 101.00 10/19/2025 06:11:42 -69.00, -93.91 101.01 6.18 73
3 10/19/2025 07:01:13 68.91, 73.39 78.92 10/19/2025 07:02:11 68.90, 73.34 78.90 2.87 58
4 10/19/2025 07:51:57 -68.91,-119.29 101.08 10/19/2025 07:52:41 -68.89,-119.29 101.09 1.64 44
5 10/19/2025 08:42:42 68.86, 48.08 78.89 10/19/2025 08:43:08 68.89, 48.10 78.92 3.41 26
6 10/19/2025 09:33:26 -68.86,-144.59 101.11 10/19/2025 09:33:39 -68.84,-144.60 101.13 2.24 13
7 10/19/2025 10:24:11 68.81, 22.78 78.87 10/19/2025 10:24:06 68.84, 22.78 78.89 2.82 5
8 10/19/2025 11:14:55 -68.80,-169.90 101.13 10/19/2025 11:14:37 -68.78,-169.92 101.16 2.85 18
9 10/19/2025 12:05:40 68.76, -2.52 78.84 10/19/2025 12:05:04 68.78, -2.53 78.86 2.27 36
10 10/19/2025 12:56:24 -68.75, 164.80 101.16 10/19/2025 12:55:34 -68.78, 164.84 101.14 3.21 50
11 10/19/2025 13:47:09 68.71, -27.83 78.82 10/19/2025 13:46:02 68.72, -27.84 78.82 1.79 67
12 10/19/2025 14:37:49 -68.49, 139.78 101.39 10/19/2025 14:36:36 -68.50, 139.25 101.39 21.77 73
13 10/19/2025 15:28:23 67.85, -52.09 78.00 10/19/2025 15:27:15 67.85, -54.19 77.96 87.81 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 10/12/2025
SNOs_Map_NPP_GCOM-C_20251013.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 10/12/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C