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: 3/1/2025
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 03/12/2025 22:56:00 69.46,-166.72 72.36 03/12/2025 22:57:11 69.39,-165.89 72.27 32.88 71
2 03/12/2025 23:46:37 -69.12, 1.09 108.01 03/12/2025 23:47:46 -69.12, 1.10 108.01 0.87 69
3 03/13/2025 00:37:23 69.10, 168.42 71.96 03/13/2025 00:38:13 69.11, 168.47 71.96 2.61 50
4 03/13/2025 01:28:06 -69.08, -24.23 108.08 03/13/2025 01:28:44 -69.06, -24.23 108.11 2.26 38
5 03/13/2025 02:18:52 69.06, 143.11 71.89 03/13/2025 02:19:11 69.04, 143.15 71.87 1.92 19
6 03/13/2025 03:09:35 -69.04, -49.55 108.15 03/13/2025 03:09:41 -69.04, -49.48 108.15 2.74 6
7 03/13/2025 04:00:20 68.96, 117.87 71.76 03/13/2025 04:00:09 68.98, 117.82 71.78 2.73 11
8 03/13/2025 04:51:04 -68.99, -74.86 108.23 03/13/2025 04:50:39 -68.98, -74.81 108.24 2.82 25
9 03/13/2025 05:41:49 68.92, 92.55 71.69 03/13/2025 05:41:07 68.91, 92.49 71.69 2.58 42
10 03/13/2025 06:32:32 -68.90,-100.10 108.35 03/13/2025 06:31:37 -68.91,-100.13 108.33 1.77 55
11 03/13/2025 07:23:18 68.88, 67.23 71.62 03/13/2025 07:22:04 68.90, 67.24 71.64 2.27 74
12 03/13/2025 08:13:54 -68.48,-124.92 108.81 03/13/2025 08:12:42 -68.47,-125.96 108.79 42.41 72

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 3/1/2025
SNOs_Map_NPP_GCOM-C_20250301.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 03/01/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C