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: 11/13/2025
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 11/14/2025 04:42:08 -69.62, -72.68 92.21 11/14/2025 04:43:17 -69.57, -70.97 92.23 66.67 69
2 11/14/2025 05:32:43 69.01, 95.50 87.20 11/14/2025 05:33:55 68.98, 95.60 87.19 5.00 72
3 11/14/2025 06:23:25 -68.93, -97.08 92.86 11/14/2025 06:24:26 -68.92, -97.10 92.87 1.01 61
4 11/14/2025 07:14:11 68.90, 70.26 87.12 11/14/2025 07:14:53 68.93, 70.30 87.15 3.14 42
5 11/14/2025 08:04:54 -68.88,-122.39 92.89 11/14/2025 08:05:24 -68.87,-122.41 92.90 1.39 30
6 11/14/2025 08:55:40 68.85, 44.96 87.09 11/14/2025 08:55:51 68.88, 44.99 87.12 2.71 11
7 11/14/2025 09:46:23 -68.83,-147.70 92.92 11/14/2025 09:46:22 -68.82,-147.71 92.94 1.78 1
8 11/14/2025 10:37:09 68.80, 19.65 87.06 11/14/2025 10:36:49 68.82, 19.68 87.08 2.30 20
9 11/14/2025 11:27:52 -68.78,-173.00 92.95 11/14/2025 11:27:20 -68.77,-173.02 92.98 2.18 32
10 11/14/2025 12:18:38 68.75, -5.66 87.03 11/14/2025 12:17:47 68.77, -5.63 87.04 1.92 51
11 11/14/2025 13:09:21 -68.73, 161.69 92.98 11/14/2025 13:08:18 -68.71, 161.67 93.01 2.58 63
12 11/14/2025 14:00:02 68.44, -30.61 86.74 11/14/2025 13:58:50 68.45, -31.29 86.73 27.89 72
13 11/14/2025 14:50:37 -67.99, 137.29 93.69 11/14/2025 14:49:28 -68.01, 135.54 93.71 72.94 69

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 11/13/2025
SNOs_Map_NPP_GCOM-C_20251113.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 11/13/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C