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: 9/26/2025
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 10/06/2025 06:54:52 -69.70,-106.13 105.17 10/06/2025 06:56:00 -69.62,-104.21 105.23 74.89 68
2 10/06/2025 07:45:26 69.08, 62.06 74.23 10/06/2025 07:46:38 69.03, 62.35 74.19 12.65 72
3 10/06/2025 08:36:07 -68.91,-130.38 105.93 10/06/2025 08:37:10 -68.93,-130.42 105.91 2.73 63
4 10/06/2025 09:26:53 68.92, 36.91 74.10 10/06/2025 09:27:37 68.92, 36.97 74.11 2.19 44
5 10/06/2025 10:17:36 -68.85,-155.68 105.96 10/06/2025 10:18:08 -68.87,-155.73 105.94 2.85 32
6 10/06/2025 11:08:22 68.87, 11.61 74.08 10/06/2025 11:08:35 68.87, 11.66 74.08 1.81 13
7 10/06/2025 11:59:05 -68.80, 179.02 105.98 10/06/2025 11:59:06 -68.82, 178.96 105.97 3.00 1
8 10/06/2025 12:49:50 68.82, -13.69 74.05 10/06/2025 12:49:32 68.81, -13.66 74.05 1.48 18
9 10/06/2025 13:40:33 -68.75, 153.72 106.01 10/06/2025 13:40:03 -68.76, 153.65 106.00 3.16 30
10 10/06/2025 14:31:19 68.76, -38.99 74.03 10/06/2025 14:30:30 68.76, -38.97 74.02 1.22 49
11 10/06/2025 15:22:03 -68.75, 128.34 105.98 10/06/2025 15:21:00 -68.76, 128.41 105.97 3.10 63
12 10/06/2025 16:12:44 68.49, -64.01 73.79 10/06/2025 16:11:31 68.54, -64.49 73.82 20.13 73
13 10/06/2025 17:03:20 -68.05, 103.88 106.64 10/06/2025 17:02:10 -68.06, 102.27 106.66 66.80 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 9/26/2025
SNOs_Map_NPP_GCOM-C_20250927.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 09/26/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C