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: 11/14/2025
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 03:57:45 -69.65, -61.57 89.30 11/27/2025 03:58:54 -69.60, -59.77 89.33 69.94 69
2 11/27/2025 04:48:20 69.04, 106.61 90.10 11/27/2025 04:49:32 69.01, 106.78 90.08 7.72 72
3 11/27/2025 05:39:02 -68.97, -85.97 89.97 11/27/2025 05:40:03 -68.96, -85.91 89.97 2.70 61
4 11/27/2025 06:29:47 68.88, 81.45 89.96 11/27/2025 06:30:31 68.90, 81.40 89.98 2.53 44
5 11/27/2025 07:20:31 -68.92,-111.28 90.00 11/27/2025 07:21:01 -68.91,-111.22 90.02 2.97 30
6 11/27/2025 08:11:16 68.84, 56.14 89.93 11/27/2025 08:11:29 68.84, 56.09 89.93 2.21 13
7 11/27/2025 09:01:59 -68.82,-136.52 90.09 11/27/2025 09:01:59 -68.85,-136.53 90.06 3.45 0
8 11/27/2025 09:52:45 68.79, 30.83 89.89 11/27/2025 09:52:27 68.79, 30.78 89.89 2.22 18
9 11/27/2025 10:43:28 -68.77,-161.83 90.12 11/27/2025 10:42:57 -68.79,-161.84 90.10 2.57 31
10 11/27/2025 11:34:14 68.74, 5.52 89.86 11/27/2025 11:33:25 68.73, 5.46 89.84 2.55 49
11 11/27/2025 12:24:57 -68.72, 172.86 90.16 11/27/2025 12:23:55 -68.74, 172.85 90.15 1.71 62
12 11/27/2025 13:15:39 68.48, -19.50 89.61 11/27/2025 13:14:26 68.51, -20.06 89.64 22.89 73
13 11/27/2025 14:06:14 -68.03, 148.39 90.82 11/27/2025 14:05:05 -68.04, 146.71 90.85 69.90 69

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 11/14/2025
SNOs_Map_NPP_GCOM-C_20251115.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 11/14/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C