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: 8/8/2025
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 08/15/2025 12:23:17 69.81, -8.56 55.88 08/15/2025 12:24:24 69.75, -6.37 55.77 84.73 67
2 08/15/2025 13:13:51 -69.31, 159.48 124.63 08/15/2025 13:15:03 -69.27, 160.33 124.69 33.90 72
3 08/15/2025 14:04:31 68.96, -32.73 55.03 08/15/2025 14:05:36 68.94, -32.74 55.00 2.49 65
4 08/15/2025 14:55:14 -68.95, 134.61 124.98 08/15/2025 14:56:06 -68.95, 134.65 124.98 1.40 52
5 08/15/2025 15:46:00 68.91, -58.04 55.00 08/15/2025 15:46:33 68.94, -57.98 55.02 3.31 33
6 08/15/2025 16:36:43 -68.90, 109.30 125.01 08/15/2025 16:37:04 -68.89, 109.33 125.02 1.47 21
7 08/15/2025 17:27:29 68.87, -83.35 54.97 08/15/2025 17:27:31 68.88, -83.30 54.98 2.48 2
8 08/15/2025 18:18:12 -68.85, 83.99 125.03 08/15/2025 18:18:02 -68.84, 84.02 125.05 2.15 10
9 08/15/2025 19:08:58 68.82,-108.66 54.95 08/15/2025 19:08:29 68.82,-108.61 54.95 1.93 29
10 08/15/2025 19:59:41 -68.80, 58.68 125.06 08/15/2025 19:59:00 -68.78, 58.71 125.08 3.05 41
11 08/15/2025 20:50:27 68.77,-133.97 54.92 08/15/2025 20:49:27 68.76,-133.92 54.92 1.93 60
12 08/15/2025 21:41:09 -68.70, 33.44 125.14 08/15/2025 21:39:58 -68.72, 33.40 125.12 2.79 71
13 08/15/2025 22:31:45 68.13,-158.50 54.29 08/15/2025 22:30:35 68.17,-159.93 54.36 59.31 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 8/8/2025
SNOs_Map_NPP_GCOM-C_20250808.jpg

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

Historial Predications of SNOs between NPP and GCOM-C