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: 8/10/2025
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 08/15/2025 12:23:17 69.80, -8.56 55.87 08/15/2025 12:24:24 69.75, -6.36 55.78 84.77 67
2 08/15/2025 13:13:52 -69.36, 159.40 124.57 08/15/2025 13:15:03 -69.28, 160.34 124.68 37.94 71
3 08/15/2025 14:04:31 68.96, -32.72 55.02 08/15/2025 14:05:36 68.95, -32.73 55.01 1.11 65
4 08/15/2025 14:55:14 -68.94, 134.61 124.98 08/15/2025 14:56:06 -68.95, 134.65 124.98 1.86 52
5 08/15/2025 15:46:00 68.91, -58.03 55.00 08/15/2025 15:46:34 68.89, -58.04 54.97 2.20 34
6 08/15/2025 16:36:43 -68.90, 109.31 125.01 08/15/2025 16:37:04 -68.90, 109.34 125.01 1.44 21
7 08/15/2025 17:27:29 68.86, -83.34 54.97 08/15/2025 17:27:32 68.83, -83.36 54.94 3.31 3
8 08/15/2025 18:18:12 -68.85, 84.00 125.04 08/15/2025 18:18:02 -68.84, 84.03 125.05 1.75 10
9 08/15/2025 19:08:58 68.81,-108.65 54.94 08/15/2025 19:08:29 68.83,-108.60 54.96 2.65 29
10 08/15/2025 19:59:41 -68.80, 58.68 125.06 08/15/2025 19:59:00 -68.78, 58.72 125.08 2.55 41
11 08/15/2025 20:50:27 68.77,-133.96 54.92 08/15/2025 20:49:27 68.77,-133.91 54.92 2.03 60
12 08/15/2025 21:41:09 -68.70, 33.45 125.14 08/15/2025 21:39:58 -68.73, 33.40 125.11 3.14 71
13 08/15/2025 22:31:45 68.13,-158.50 54.29 08/15/2025 22:30:35 68.17,-159.92 54.36 59.25 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 8/10/2025
SNOs_Map_NPP_GCOM-C_20250810.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 08/10/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C