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: 7/31/2025
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 08/02/2025 13:07:45 69.87, -19.82 52.23 08/02/2025 13:08:52 69.82, -17.45 52.12 91.21 67
2 08/02/2025 13:58:20 -69.45, 148.13 128.21 08/02/2025 13:59:31 -69.34, 149.24 128.35 44.92 71
3 08/02/2025 14:48:58 68.98, -43.90 51.32 08/02/2025 14:50:05 68.96, -43.90 51.29 1.64 67
4 08/02/2025 15:39:41 -68.97, 123.42 128.68 08/02/2025 15:40:35 -68.96, 123.48 128.70 2.60 54
5 08/02/2025 16:30:27 68.93, -69.21 51.29 08/02/2025 16:31:03 68.91, -69.21 51.26 2.54 36
6 08/02/2025 17:21:10 -68.93, 98.11 128.71 08/02/2025 17:21:33 -68.91, 98.17 128.73 2.94 23
7 08/02/2025 18:11:56 68.88, -94.52 51.25 08/02/2025 18:12:01 68.85, -94.52 51.22 3.44 5
8 08/02/2025 19:02:38 -68.83, 72.88 128.80 08/02/2025 19:02:31 -68.85, 72.86 128.77 3.26 7
9 08/02/2025 19:53:25 68.83,-119.83 51.22 08/02/2025 19:52:58 68.85,-119.76 51.24 3.11 27
10 08/02/2025 20:44:07 -68.78, 47.57 128.83 08/02/2025 20:43:29 -68.80, 47.55 128.80 2.44 38
11 08/02/2025 21:34:54 68.78,-145.14 51.19 08/02/2025 21:33:56 68.79,-145.08 51.20 2.65 58
12 08/02/2025 22:25:36 -68.73, 22.26 128.86 08/02/2025 22:24:27 -68.74, 22.23 128.84 1.66 69
13 08/02/2025 23:16:14 68.25,-169.81 50.66 08/02/2025 23:15:03 68.25,-171.02 50.70 49.74 71
14 08/03/2025 00:06:49 -67.82, -1.95 129.77 08/03/2025 00:05:41 -67.82, -4.17 129.71 93.36 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 7/31/2025
SNOs_Map_NPP_GCOM-C_20250731.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 07/31/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C