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: 8/19/2025
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 08/28/2025 11:38:46 69.69, 2.78 60.08 08/28/2025 11:39:54 69.64, 4.67 60.01 73.33 68
2 08/28/2025 12:29:21 -69.23, 170.76 120.38 08/28/2025 12:30:33 -69.16, 171.37 120.46 25.37 72
3 08/28/2025 13:20:02 68.95, -21.54 59.35 08/28/2025 13:21:04 68.93, -21.55 59.33 1.55 62
4 08/28/2025 14:10:45 -68.92, 145.82 120.67 08/28/2025 14:11:34 -68.94, 145.84 120.65 3.04 49
5 08/28/2025 15:01:31 68.90, -46.85 59.33 08/28/2025 15:02:02 68.88, -46.86 59.30 2.82 31
6 08/28/2025 15:52:14 -68.87, 120.51 120.70 08/28/2025 15:52:32 -68.89, 120.52 120.68 1.82 18
7 08/28/2025 16:43:00 68.86, -72.16 59.31 08/28/2025 16:42:59 68.87, -72.11 59.32 3.07 1
8 08/28/2025 17:33:43 -68.82, 95.20 120.72 08/28/2025 17:33:30 -68.83, 95.21 120.71 0.68 13
9 08/28/2025 18:24:29 68.81, -97.48 59.28 08/28/2025 18:23:57 68.81, -97.42 59.29 2.36 32
10 08/28/2025 19:15:12 -68.78, 69.89 120.74 08/28/2025 19:14:28 -68.77, 69.90 120.75 0.87 44
11 08/28/2025 20:05:58 68.76,-122.79 59.26 08/28/2025 20:04:55 68.76,-122.73 59.26 2.25 63
12 08/28/2025 20:56:40 -68.73, 44.57 120.76 08/28/2025 20:55:25 -68.71, 44.58 120.78 2.04 75
13 08/28/2025 21:47:13 68.02,-147.19 58.53 08/28/2025 21:46:04 68.05,-148.88 58.59 70.50 69

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 8/19/2025
SNOs_Map_NPP_GCOM-C_20250819.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 08/19/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C