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: 11/22/2025
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, 131.27 90.53 11/27/2025 03:08:28 69.45, 132.62 90.51 53.12 70
2 11/27/2025 03:57:53 -69.05, -60.79 89.90 11/27/2025 03:59:06 -69.02, -60.60 89.93 8.49 73
3 11/27/2025 04:48:38 68.95, 106.65 90.01 11/27/2025 04:49:34 68.96, 106.71 90.03 2.90 56
4 11/27/2025 05:39:20 -68.89, -85.94 90.05 11/27/2025 05:40:05 -68.91, -85.98 90.02 3.10 45
5 11/27/2025 06:30:07 68.89, 81.35 89.97 11/27/2025 06:30:32 68.91, 81.40 89.99 2.57 25
6 11/27/2025 07:20:50 -68.88,-111.31 90.04 11/27/2025 07:21:03 -68.85,-111.29 90.07 3.06 13
7 11/27/2025 08:11:36 68.83, 56.06 89.93 11/27/2025 08:11:30 68.85, 56.09 89.94 2.41 6
8 11/27/2025 09:02:19 -68.82,-136.61 90.08 11/27/2025 09:02:01 -68.80,-136.60 90.11 2.67 18
9 11/27/2025 09:53:05 68.78, 30.76 89.88 11/27/2025 09:52:28 68.80, 30.78 89.90 2.42 37
10 11/27/2025 10:43:48 -68.77,-161.90 90.13 11/27/2025 10:42:59 -68.75,-161.91 90.15 2.37 49
11 11/27/2025 11:34:34 68.72, 5.46 89.84 11/27/2025 11:33:26 68.74, 5.47 89.86 2.60 68
12 11/27/2025 12:25:13 -68.50, 173.08 90.38 11/27/2025 12:24:00 -68.53, 172.57 90.36 21.38 73
13 11/27/2025 13:15:47 67.80, -18.73 88.95 11/27/2025 13:14:40 67.82, -20.94 88.93 93.02 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 11/22/2025
SNOs_Map_NPP_GCOM-C_20251122.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 11/22/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C