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: 7/12/2025
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 07/12/2025 13:02:45 70.30, -18.98 48.39 07/12/2025 13:01:32 70.33, -19.01 48.44 3.63 73
2 07/12/2025 13:52:15 -70.19, 148.49 131.71 07/12/2025 13:52:13 -70.21, 148.50 131.69 2.14 2
3 07/12/2025 14:41:43 70.04, -44.09 48.15 07/12/2025 14:42:56 70.02, -43.90 48.12 7.27 73
4 07/15/2025 05:19:16 70.30, 96.89 48.79 07/15/2025 05:18:27 70.30, 96.83 48.81 2.20 49
5 07/15/2025 06:08:46 -70.19, -95.64 131.31 07/15/2025 06:09:08 -70.17, -95.66 131.32 2.00 22
6 07/17/2025 21:35:48 70.23,-147.34 49.18 07/17/2025 21:35:21 70.21,-147.26 49.16 3.50 27
7 07/17/2025 22:25:18 -70.12, 20.15 130.92 07/17/2025 22:26:03 -70.14, 20.17 130.91 1.83 45
8 07/20/2025 13:02:49 -70.48, 161.27 130.10 07/20/2025 13:01:36 -70.52, 160.72 130.02 21.04 73
9 07/20/2025 13:52:19 70.21, -31.49 49.65 07/20/2025 13:52:17 70.23, -31.52 49.68 3.01 2
10 07/20/2025 14:41:48 -70.11, 136.00 130.44 07/20/2025 14:42:57 -70.11, 135.99 130.45 0.28 69
11 07/23/2025 05:19:22 -70.30, -83.13 129.74 07/23/2025 05:18:26 -70.29, -83.13 129.74 0.91 56
12 07/23/2025 06:08:49 70.18, 84.35 50.16 07/23/2025 06:09:10 70.16, 84.38 50.13 3.14 21
13 07/23/2025 06:58:32 -69.37,-109.14 130.60 07/23/2025 06:59:39 -69.40,-107.17 130.66 77.22 67
14 07/25/2025 21:35:53 -70.26, 32.71 129.20 07/25/2025 21:35:21 -70.26, 32.68 129.20 0.83 32
15 07/25/2025 22:25:20 70.15,-159.82 50.70 07/25/2025 22:26:05 70.13,-159.81 50.68 1.64 45

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/12/2025
SNOs_Map_LANDSAT-8_NPP_20250712.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/12/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP