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: 4/22/2025
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 05/03/2025 17:27:00 -69.77, 95.22 126.22 05/03/2025 17:28:09 -69.72, 97.09 126.30 72.42 69
2 05/03/2025 18:17:34 69.14, -96.56 53.12 05/03/2025 18:18:47 69.12, -96.37 53.10 7.57 73
3 05/03/2025 19:08:16 -69.03, 70.91 127.00 05/03/2025 19:09:19 -69.02, 70.87 127.01 1.89 63
4 05/03/2025 19:59:02 69.03,-121.78 52.99 05/03/2025 19:59:46 69.01,-121.76 52.97 2.49 44
5 05/03/2025 20:49:45 -68.98, 45.60 127.07 05/03/2025 20:50:17 -68.97, 45.56 127.09 2.31 32
6 05/03/2025 21:40:31 68.98,-147.08 52.92 05/03/2025 21:40:44 68.95,-147.07 52.90 2.59 13
7 05/03/2025 22:31:14 -68.93, 20.30 127.15 05/03/2025 22:31:15 -68.91, 20.25 127.16 2.73 1
8 05/03/2025 23:22:00 68.92,-172.39 52.85 05/03/2025 23:21:42 68.90,-172.38 52.82 2.76 18
9 05/04/2025 00:12:43 -68.87, -5.00 127.22 05/04/2025 00:12:13 -68.86, -5.06 127.24 3.12 30
10 05/04/2025 01:03:29 68.87, 162.31 52.77 05/04/2025 01:02:40 68.84, 162.31 52.75 2.99 49
11 05/04/2025 01:54:12 -68.82, -30.30 127.29 05/04/2025 01:53:11 -68.80, -30.37 127.31 3.50 61
12 05/04/2025 02:44:54 68.60, 137.30 52.48 05/04/2025 02:43:41 68.63, 136.78 52.51 20.94 73
13 05/04/2025 03:35:29 -68.13, -54.77 128.01 05/04/2025 03:34:20 -68.15, -56.45 127.97 69.81 69

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 4/22/2025
SNOs_Map_NPP_GCOM-C_20250422.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 04/22/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C