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: 5/10/2025
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 05/16/2025 17:33:32 69.53, -86.04 50.16 05/16/2025 17:34:43 69.47, -84.81 50.08 48.44 71
2 05/16/2025 18:24:08 -69.10, 81.89 130.29 05/16/2025 18:25:20 -69.10, 82.04 130.30 5.97 72
3 05/16/2025 19:14:52 69.00,-110.67 49.60 05/16/2025 19:15:49 68.99,-110.72 49.59 2.52 57
4 05/16/2025 20:05:36 -69.00, 56.66 130.42 05/16/2025 20:06:19 -68.99, 56.66 130.42 0.40 43
5 05/16/2025 20:56:21 68.95,-135.97 49.53 05/16/2025 20:56:47 68.94,-136.02 49.52 2.44 26
6 05/16/2025 21:47:04 -68.94, 31.36 130.49 05/16/2025 21:47:16 -68.94, 31.36 130.49 0.13 12
7 05/16/2025 22:37:49 68.90,-161.27 49.46 05/16/2025 22:37:44 68.89,-161.33 49.46 2.37 5
8 05/16/2025 23:28:33 -68.89, 6.05 130.55 05/16/2025 23:28:14 -68.89, 6.05 130.55 0.14 19
9 05/17/2025 00:19:18 68.85, 173.42 49.40 05/17/2025 00:18:42 68.84, 173.37 49.39 2.30 36
10 05/17/2025 01:10:02 -68.84, -19.25 130.62 05/17/2025 01:09:12 -68.84, -19.25 130.62 0.40 50
11 05/17/2025 02:00:47 68.80, 148.12 49.33 05/17/2025 01:59:40 68.79, 148.06 49.33 2.23 67
12 05/17/2025 02:51:27 -68.58, -44.27 130.91 05/17/2025 02:50:14 -68.58, -44.84 130.90 23.15 73
13 05/17/2025 03:42:01 67.94, 123.86 48.45 05/17/2025 03:40:53 67.93, 121.72 48.46 89.47 68

Figure of NPP and GCOM-C satellite orbits during SNOs since TLE Epoch: 5/10/2025
SNOs_Map_NPP_GCOM-C_20250510.jpg

Download SNOs between NPP and GCOM-C since TLE EPOCH: 05/10/2025 in txt file.

Historial Predications of SNOs between NPP and GCOM-C