Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between LANDSAT-8 and NPP Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/14/2025
Index Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Date (NPP) Time (NPP) Lat,Lon (NPP) SZA (NPP ) Distance(km) Time Diff (sec)
1 05/14/2025 21:35:21 70.21,-147.37 51.27 05/14/2025 21:34:46 70.23,-147.35 51.30 2.10 35
2 05/14/2025 22:24:51 -70.10, 20.10 128.85 05/14/2025 22:25:28 -70.12, 20.13 128.83 2.95 37
3 05/17/2025 13:02:18 -70.61, 161.46 128.94 05/17/2025 13:01:07 -70.70, 160.36 128.83 41.69 71
4 05/17/2025 13:51:51 70.18, -31.53 50.63 05/17/2025 13:51:43 70.18, -31.51 50.64 0.57 8
5 05/17/2025 14:41:21 -70.07, 135.95 129.49 05/17/2025 14:42:25 -70.07, 135.98 129.49 1.20 64
6 05/20/2025 05:18:54 -70.24, -83.21 129.89 05/20/2025 05:17:56 -70.23, -83.13 129.88 3.02 58
7 05/20/2025 06:08:21 70.13, 84.28 50.01 05/20/2025 06:08:40 70.14, 84.32 50.02 2.03 19
8 05/20/2025 06:58:02 -69.42,-109.07 130.70 05/20/2025 06:59:10 -69.39,-107.25 130.76 71.42 68
9 05/22/2025 21:35:23 -70.22, 32.65 130.44 05/22/2025 21:34:54 -70.24, 32.62 130.40 3.08 29
10 05/22/2025 22:24:50 70.11,-159.86 49.45 05/22/2025 22:25:37 70.11,-159.86 49.45 0.22 47
11 05/25/2025 13:02:20 70.34, -18.92 49.20 05/25/2025 13:01:08 70.34, -19.08 49.21 5.92 72
12 05/25/2025 13:51:51 -70.18, 148.48 130.96 05/25/2025 13:51:49 -70.16, 148.52 130.98 2.82 2
13 05/25/2025 14:41:19 70.01, -44.11 48.87 05/25/2025 14:42:31 69.97, -43.88 48.82 9.71 72

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 5/14/2025
SNOs_Map_LANDSAT-8_NPP_20250514.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 05/14/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP