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: 11/1/2025
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 11/01/2025 14:44:18 68.31, -41.57 82.87 11/01/2025 14:43:07 68.31, -42.57 82.85 41.19 71
2 11/01/2025 15:34:53 -67.84, 126.34 97.58 11/01/2025 15:33:45 -67.88, 124.26 97.59 87.15 68
3 11/14/2025 04:42:09 -69.61, -72.67 92.21 11/14/2025 04:43:18 -69.60, -70.92 92.19 67.97 69
4 11/14/2025 05:32:44 69.01, 95.49 87.21 11/14/2025 05:33:56 69.01, 95.64 87.21 5.92 72
5 11/14/2025 06:23:26 -68.92, -97.07 92.87 11/14/2025 06:24:28 -68.91, -97.12 92.89 2.90 62
6 11/14/2025 07:14:12 68.91, 70.26 87.13 11/14/2025 07:14:55 68.90, 70.26 87.12 1.09 43
7 11/14/2025 08:04:55 -68.88,-122.38 92.90 11/14/2025 08:05:26 -68.85,-122.43 92.92 3.14 31
8 11/14/2025 08:55:41 68.86, 44.95 87.10 11/14/2025 08:55:53 68.85, 44.95 87.09 1.40 12
9 11/14/2025 09:46:24 -68.83,-147.69 92.93 11/14/2025 09:46:24 -68.80,-147.74 92.96 3.38 0
10 11/14/2025 10:37:10 68.81, 19.64 87.07 11/14/2025 10:36:51 68.79, 19.64 87.05 1.70 19
11 11/14/2025 11:27:53 -68.78,-172.99 92.96 11/14/2025 11:27:21 -68.80,-172.97 92.94 3.11 32
12 11/14/2025 12:18:39 68.76, -5.66 87.04 11/14/2025 12:17:49 68.74, -5.67 87.01 2.01 50
13 11/14/2025 13:09:22 -68.73, 161.70 92.99 11/14/2025 13:08:19 -68.75, 161.72 92.97 2.83 63
14 11/14/2025 14:00:04 68.50, -30.69 86.80 11/14/2025 13:58:51 68.47, -31.25 86.76 23.38 73
15 11/14/2025 14:50:39 -68.04, 137.23 93.65 11/14/2025 14:49:29 -68.05, 135.58 93.67 68.36 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 11/1/2025
SNOs_Map_NPP_GCOM-C_20251102.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 11/01/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C