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: 9/22/2025
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 04:30:11 70.51, 109.52 71.35 09/25/2025 04:28:58 70.58, 109.01 71.43 20.56 73
2 09/25/2025 05:19:43 -70.29, -83.17 108.87 09/25/2025 05:19:37 -70.31, -83.23 108.84 3.37 6
3 09/25/2025 06:09:09 70.18, 84.33 71.05 09/25/2025 06:10:19 70.16, 84.31 71.02 2.92 70
4 09/27/2025 20:46:42 70.32,-134.87 72.20 09/27/2025 20:45:52 70.34,-134.84 72.22 2.06 50
5 09/27/2025 21:36:12 -70.21, 32.61 107.90 09/27/2025 21:36:34 -70.22, 32.67 107.89 2.45 22
6 09/30/2025 12:13:30 -71.13, 174.61 105.96 09/30/2025 12:12:22 -71.18, 172.22 105.90 85.98 68
7 09/30/2025 13:03:10 70.32, -18.99 73.24 09/30/2025 13:02:51 70.32, -19.04 73.24 1.99 19
8 09/30/2025 13:52:40 -70.21, 148.49 106.86 09/30/2025 13:53:33 -70.19, 148.47 106.88 2.28 53
9 10/03/2025 04:30:11 -70.39, -70.64 105.67 10/03/2025 04:29:06 -70.39, -70.70 105.67 2.29 65
10 10/03/2025 05:19:38 70.28, 96.85 74.23 10/03/2025 05:19:49 70.25, 96.82 74.21 3.12 11
11 10/03/2025 06:09:15 -69.79, -96.21 106.25 10/03/2025 06:10:25 -69.81, -95.18 106.23 39.73 70
12 10/05/2025 20:46:39 -70.32, 45.15 104.71 10/05/2025 20:46:04 -70.33, 45.15 104.70 1.49 35
13 10/05/2025 21:36:06 70.20,-147.37 75.19 10/05/2025 21:36:47 70.20,-147.33 75.19 1.65 41

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 9/22/2025
SNOs_Map_LANDSAT-8_NPP_20250923.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 09/22/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP