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: 11/21/2025
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 03:07:19 69.51, 131.23 90.56 11/27/2025 03:08:29 69.42, 132.59 90.49 53.96 70
2 11/27/2025 03:57:54 -69.07, -60.83 89.88 11/27/2025 03:59:06 -69.05, -60.56 89.89 11.04 72
3 11/27/2025 04:48:38 68.92, 106.69 89.99 11/27/2025 04:49:35 68.94, 106.68 90.01 2.11 57
4 11/27/2025 05:39:21 -68.91, -85.97 90.03 11/27/2025 05:40:06 -68.89, -86.01 90.05 2.81 45
5 11/27/2025 06:30:07 68.86, 81.39 89.94 11/27/2025 06:30:33 68.89, 81.37 89.96 2.55 26
6 11/27/2025 07:20:50 -68.85,-111.27 90.07 11/27/2025 07:21:04 -68.83,-111.32 90.09 2.91 14
7 11/27/2025 08:11:36 68.81, 56.10 89.90 11/27/2025 08:11:31 68.83, 56.06 89.92 3.07 5
8 11/27/2025 09:02:19 -68.79,-136.57 90.11 11/27/2025 09:02:02 -68.78,-136.63 90.13 3.11 17
9 11/27/2025 09:53:06 68.80, 30.73 89.91 11/27/2025 09:52:29 68.78, 30.75 89.88 3.06 37
10 11/27/2025 10:43:49 -68.79,-161.94 90.11 11/27/2025 10:42:59 -68.78,-161.87 90.12 3.00 50
11 11/27/2025 11:34:35 68.74, 5.43 89.86 11/27/2025 11:33:27 68.72, 5.44 89.83 2.62 68
12 11/27/2025 12:25:14 -68.52, 173.05 90.36 11/27/2025 12:24:01 -68.51, 172.54 90.38 20.94 73
13 11/27/2025 13:15:48 67.83, -18.76 88.97 11/27/2025 13:14:40 67.85, -20.90 88.97 89.99 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 11/21/2025
SNOs_Map_NPP_GCOM-C_20251121.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 11/21/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C