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: 11/25/2025
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 11/27/2025 03:07:18 69.49, 131.26 90.54 11/27/2025 03:08:28 69.44, 132.61 90.51 53.11 70
2 11/27/2025 03:57:53 -69.06, -60.80 89.89 11/27/2025 03:59:06 -69.01, -60.61 89.94 9.29 73
3 11/27/2025 04:48:38 68.95, 106.64 90.02 11/27/2025 04:49:34 68.96, 106.71 90.02 2.47 56
4 11/27/2025 05:39:20 -68.89, -85.95 90.04 11/27/2025 05:40:05 -68.90, -86.00 90.03 1.92 45
5 11/27/2025 06:30:07 68.90, 81.35 89.97 11/27/2025 06:30:32 68.90, 81.39 89.98 1.93 25
6 11/27/2025 07:20:49 -68.84,-111.25 90.09 11/27/2025 07:21:03 -68.85,-111.31 90.08 2.55 14
7 11/27/2025 08:11:36 68.84, 56.05 89.93 11/27/2025 08:11:30 68.85, 56.08 89.94 1.53 6
8 11/27/2025 09:02:18 -68.78,-136.55 90.13 11/27/2025 09:02:01 -68.79,-136.62 90.12 3.16 17
9 11/27/2025 09:53:05 68.78, 30.75 89.89 11/27/2025 09:52:28 68.79, 30.77 89.89 1.33 37
10 11/27/2025 10:43:48 -68.77,-161.92 90.12 11/27/2025 10:42:58 -68.79,-161.85 90.11 2.99 50
11 11/27/2025 11:34:34 68.72, 5.46 89.84 11/27/2025 11:33:26 68.74, 5.46 89.85 1.41 68
12 11/27/2025 12:25:13 -68.50, 173.07 90.38 11/27/2025 12:24:00 -68.52, 172.55 90.37 21.23 73
13 11/27/2025 13:15:47 67.81, -18.73 88.95 11/27/2025 13:14:40 67.81, -20.95 88.93 93.11 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 11/25/2025
SNOs_Map_NPP_GCOM-C_20251125.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 11/25/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C