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: 3/15/2025
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 03/25/2025 21:20:40 -69.98, 36.41 112.23 03/25/2025 21:21:47 -69.95, 38.80 112.32 90.84 67
2 03/25/2025 22:11:14 69.32,-155.31 67.07 03/25/2025 22:12:26 69.29,-154.77 67.02 21.41 72
3 03/25/2025 23:01:53 -69.09, 12.33 113.18 03/25/2025 23:03:00 -69.08, 12.32 113.20 1.35 67
4 03/25/2025 23:52:39 69.07, 179.67 66.78 03/25/2025 23:53:27 69.06, 179.68 66.77 0.81 48
5 03/26/2025 00:43:22 -69.05, -12.99 113.25 03/26/2025 00:43:57 -69.07, -12.94 113.24 2.83 35
6 03/26/2025 01:34:08 69.03, 154.36 66.71 03/26/2025 01:34:24 69.05, 154.42 66.73 3.50 16
7 03/26/2025 02:24:51 -69.01, -38.30 113.32 03/26/2025 02:24:55 -69.01, -38.26 113.33 1.89 4
8 03/26/2025 03:15:37 68.99, 129.04 66.64 03/26/2025 03:15:22 68.98, 129.10 66.64 2.23 15
9 03/26/2025 04:06:19 -68.92, -63.55 113.45 03/26/2025 04:05:53 -68.94, -63.59 113.42 2.80 26
10 03/26/2025 04:57:05 68.89, 103.80 66.52 03/26/2025 04:56:20 68.92, 103.77 66.55 2.93 45
11 03/26/2025 05:47:48 -68.88, -88.87 113.52 03/26/2025 05:46:51 -68.87, -88.91 113.51 1.92 57
12 03/26/2025 06:38:32 68.80, 78.55 66.39 03/26/2025 06:37:18 68.79, 78.37 66.40 7.24 74
13 03/26/2025 07:29:07 -68.36,-113.55 114.08 03/26/2025 07:27:56 -68.38,-114.80 114.02 51.60 71

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 3/15/2025
SNOs_Map_NPP_GCOM-C_20250315.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 03/15/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C