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: 9/23/2025
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 09/25/2025 04:30:10 70.52, 109.53 71.35 09/25/2025 04:28:57 70.57, 109.02 71.42 19.89 73
2 09/25/2025 05:19:42 -70.29, -83.16 108.86 09/25/2025 05:19:36 -70.30, -83.22 108.85 2.51 6
3 09/25/2025 06:09:10 70.14, 84.26 71.00 09/25/2025 06:10:19 70.15, 84.32 71.02 2.73 69
4 09/27/2025 20:46:42 70.33,-134.86 72.21 09/27/2025 20:45:52 70.33,-134.82 72.21 1.47 50
5 09/27/2025 21:36:12 -70.22, 32.61 107.90 09/27/2025 21:36:34 -70.21, 32.68 107.90 2.79 22
6 09/30/2025 12:13:30 -71.13, 174.61 105.96 09/30/2025 12:12:22 -71.17, 172.24 105.91 85.25 68
7 09/30/2025 13:03:10 70.32, -18.98 73.24 09/30/2025 13:02:51 70.30, -19.02 73.22 2.35 19
8 09/30/2025 13:52:40 -70.21, 148.49 106.86 09/30/2025 13:53:33 -70.18, 148.49 106.89 3.48 53
9 10/03/2025 04:30:11 -70.38, -70.65 105.68 10/03/2025 04:29:06 -70.37, -70.68 105.69 1.78 65
10 10/03/2025 05:19:38 70.27, 96.84 74.23 10/03/2025 05:19:50 70.29, 96.77 74.25 3.13 12
11 10/03/2025 06:09:15 -69.78, -96.22 106.25 10/03/2025 06:10:25 -69.79, -95.16 106.24 40.86 70
12 10/05/2025 20:46:38 -70.30, 45.13 104.73 10/05/2025 20:46:03 -70.31, 45.18 104.72 2.25 35
13 10/05/2025 21:36:04 70.25,-147.31 75.23 10/05/2025 21:36:47 70.23,-147.38 75.22 2.99 43

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/23/2025
SNOs_Map_LANDSAT-8_NPP_20250924.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/23/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP