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: 8/12/2025
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 69.79, -8.55 55.87 08/15/2025 12:24:24 69.76, -6.35 55.79 84.69 67
2 08/15/2025 13:13:52 -69.36, 159.41 124.58 08/15/2025 13:15:03 -69.28, 160.34 124.68 37.69 71
3 08/15/2025 14:04:31 68.95, -32.71 55.01 08/15/2025 14:05:36 68.95, -32.72 55.01 0.64 65
4 08/15/2025 14:55:14 -68.94, 134.62 124.99 08/15/2025 14:56:06 -68.96, 134.66 124.97 2.51 52
5 08/15/2025 15:46:00 68.90, -58.02 54.99 08/15/2025 15:46:34 68.90, -58.04 54.98 0.86 34
6 08/15/2025 16:36:43 -68.89, 109.31 125.01 08/15/2025 16:37:04 -68.90, 109.35 125.01 1.68 21
7 08/15/2025 17:27:29 68.86, -83.33 54.96 08/15/2025 17:27:32 68.84, -83.35 54.95 1.87 3
8 08/15/2025 18:18:12 -68.85, 84.00 125.04 08/15/2025 18:18:02 -68.85, 84.03 125.04 1.32 10
9 08/15/2025 19:08:58 68.81,-108.64 54.94 08/15/2025 19:08:30 68.78,-108.66 54.91 2.94 28
10 08/15/2025 19:59:41 -68.80, 58.69 125.07 08/15/2025 19:59:00 -68.79, 58.72 125.07 1.74 41
11 08/15/2025 20:50:27 68.76,-133.95 54.91 08/15/2025 20:49:27 68.78,-133.90 54.93 2.86 60
12 08/15/2025 21:41:10 -68.75, 33.38 125.09 08/15/2025 21:39:58 -68.73, 33.41 125.11 2.59 72
13 08/15/2025 22:31:45 68.12,-158.49 54.28 08/15/2025 22:30:35 68.18,-159.92 54.37 59.40 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 8/12/2025
SNOs_Map_NPP_GCOM-C_20250813.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 08/12/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C