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: 12/4/2025
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 12/10/2025 00:41:54 69.52, 167.64 92.32 12/10/2025 00:43:04 69.42, 168.97 92.23 53.43 70
2 12/10/2025 01:32:28 -69.03, -24.35 88.17 12/10/2025 01:33:42 -68.99, -24.25 88.21 6.44 74
3 12/10/2025 02:23:13 68.93, 143.09 91.74 12/10/2025 02:24:10 68.93, 143.06 91.74 1.17 57
4 12/10/2025 03:13:56 -68.92, -49.57 88.27 12/10/2025 03:14:40 -68.93, -49.56 88.26 1.06 44
5 12/10/2025 04:04:42 68.87, 117.80 91.69 12/10/2025 04:05:08 68.87, 117.75 91.69 1.81 26
6 12/10/2025 04:55:25 -68.86, -74.87 88.32 12/10/2025 04:55:38 -68.87, -74.87 88.31 0.79 13
7 12/10/2025 05:46:11 68.82, 92.50 91.64 12/10/2025 05:46:06 68.81, 92.44 91.64 2.42 5
8 12/10/2025 06:36:54 -68.81,-100.17 88.37 12/10/2025 06:36:36 -68.81,-100.19 88.36 0.92 18
9 12/10/2025 07:27:41 68.81, 67.13 91.64 12/10/2025 07:27:03 68.81, 67.20 91.64 2.85 38
10 12/10/2025 08:18:23 -68.75,-125.47 88.42 12/10/2025 08:17:34 -68.76,-125.50 88.42 1.29 49
11 12/10/2025 09:09:10 68.76, 41.83 91.59 12/10/2025 09:08:01 68.75, 41.88 91.59 2.31 69
12 12/10/2025 09:59:49 -68.54,-150.56 88.63 12/10/2025 09:58:35 -68.54,-151.02 88.63 19.01 74
13 12/10/2025 10:50:22 67.79, 17.71 90.64 12/10/2025 10:49:15 67.83, 15.47 90.66 94.15 67

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 12/4/2025
SNOs_Map_NPP_GCOM-C_20251204.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 12/04/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C