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: 4/29/2025
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 17:27:01 -69.81, 95.16 126.18 05/03/2025 17:28:09 -69.75, 97.13 126.27 76.09 68
2 05/03/2025 18:17:35 69.16, -96.60 53.15 05/03/2025 18:18:48 69.10, -96.40 53.08 10.65 73
3 05/03/2025 19:08:17 -69.07, 70.85 126.96 05/03/2025 19:09:19 -69.05, 70.91 126.98 3.04 62
4 05/03/2025 19:59:02 69.01,-121.75 52.97 05/03/2025 19:59:47 68.99,-121.78 52.95 1.91 45
5 05/03/2025 20:49:46 -69.02, 45.55 127.03 05/03/2025 20:50:17 -69.00, 45.60 127.06 2.92 31
6 05/03/2025 21:40:31 68.95,-147.05 52.89 05/03/2025 21:40:45 68.94,-147.09 52.88 2.34 14
7 05/03/2025 22:31:15 -68.96, 20.25 127.11 05/03/2025 22:31:15 -68.94, 20.29 127.13 2.88 0
8 05/03/2025 23:22:00 68.90,-172.35 52.82 05/03/2025 23:21:43 68.88,-172.40 52.80 2.76 17
9 05/04/2025 00:12:44 -68.91, -5.05 127.18 05/04/2025 00:12:13 -68.89, -5.02 127.21 2.91 31
10 05/04/2025 01:03:29 68.85, 162.34 52.75 05/04/2025 01:02:41 68.83, 162.29 52.73 3.16 48
11 05/04/2025 01:54:13 -68.86, -30.35 127.26 05/04/2025 01:53:11 -68.83, -30.33 127.28 3.01 62
12 05/04/2025 02:44:55 68.63, 137.26 52.51 05/04/2025 02:43:42 68.61, 136.76 52.49 20.27 73
13 05/04/2025 03:35:30 -68.16, -54.81 127.98 05/04/2025 03:34:20 -68.18, -56.41 127.94 66.16 70

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 4/29/2025
SNOs_Map_NPP_GCOM-C_20250501.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 04/29/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C