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: 9/26/2025
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 09/27/2025 20:46:42 70.37,-134.80 72.25 09/27/2025 20:45:53 70.34,-134.85 72.23 3.31 49
2 09/27/2025 21:36:12 -70.25, 32.66 107.86 09/27/2025 21:36:35 -70.23, 32.65 107.88 2.85 23
3 09/30/2025 12:13:29 -71.17, 174.67 105.93 09/30/2025 12:12:22 -71.19, 172.21 105.89 88.28 67
4 09/30/2025 13:03:10 70.31, -19.01 73.23 09/30/2025 13:02:51 70.32, -19.04 73.24 1.93 19
5 09/30/2025 13:52:40 -70.19, 148.46 106.88 09/30/2025 13:53:33 -70.20, 148.46 106.87 0.63 53
6 10/03/2025 04:30:11 -70.37, -70.68 105.70 10/03/2025 04:29:06 -70.39, -70.71 105.67 3.06 65
7 10/03/2025 05:19:38 70.26, 96.81 74.21 10/03/2025 05:19:49 70.25, 96.82 74.21 0.85 11
8 10/03/2025 06:09:14 -69.82, -96.18 106.22 10/03/2025 06:10:25 -69.81, -95.19 106.22 37.83 71
9 10/05/2025 20:46:38 -70.34, 45.17 104.70 10/05/2025 20:46:04 -70.33, 45.15 104.70 1.02 34
10 10/05/2025 21:36:05 70.23,-147.34 75.21 10/05/2025 21:36:47 70.20,-147.33 75.18 3.35 42
11 10/08/2025 12:13:34 70.43, -6.43 76.41 10/08/2025 12:12:21 70.47, -6.61 76.45 8.20 73
12 10/08/2025 13:03:05 -70.27, 160.97 103.74 10/08/2025 13:03:02 -70.29, 160.99 103.72 2.15 3
13 10/08/2025 13:52:32 70.15, -31.55 76.16 10/08/2025 13:53:45 70.15, -31.49 76.16 2.11 73

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/26/2025
SNOs_Map_LANDSAT-8_NPP_20250927.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/26/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP