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: 6/8/2025
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 06/11/2025 16:05:09 69.84, -64.29 46.63 06/11/2025 16:06:17 69.78, -62.14 46.54 82.75 68
2 06/11/2025 16:55:44 -69.35, 103.73 133.88 06/11/2025 16:56:56 -69.28, 104.53 133.96 32.22 72
3 06/11/2025 17:46:23 68.99, -88.45 45.75 06/11/2025 17:47:29 68.97, -88.51 45.73 3.17 66
4 06/11/2025 18:37:07 -68.98, 78.88 134.26 06/11/2025 18:37:59 -68.96, 78.85 134.28 2.33 52
5 06/11/2025 19:27:52 68.94,-113.75 45.70 06/11/2025 19:28:27 68.92,-113.82 45.68 3.35 35
6 06/11/2025 20:18:36 -68.93, 53.57 134.31 06/11/2025 20:18:57 -68.91, 53.55 134.34 2.50 21
7 06/11/2025 21:09:21 68.89,-139.06 45.64 06/11/2025 21:09:25 68.87,-139.13 45.62 3.51 4
8 06/11/2025 22:00:05 -68.88, 28.26 134.37 06/11/2025 21:59:55 -68.86, 28.24 134.39 2.67 10
9 06/11/2025 22:50:51 68.89,-164.44 45.64 06/11/2025 22:50:22 68.87,-164.36 45.62 3.64 29
10 06/11/2025 23:41:34 -68.83, 2.96 134.42 06/11/2025 23:40:53 -68.81, 2.93 134.45 2.82 41
11 06/12/2025 00:32:19 68.79, 170.33 45.53 06/12/2025 00:31:20 68.82, 170.33 45.56 3.61 59
12 06/12/2025 01:23:03 -68.78, -22.35 134.48 06/12/2025 01:21:51 -68.76, -22.37 134.50 2.97 72
13 06/12/2025 02:13:38 68.20, 145.73 44.93 06/12/2025 02:12:28 68.23, 144.32 44.98 58.25 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 6/8/2025
SNOs_Map_NPP_GCOM-C_20250609.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 06/08/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C