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: 10/6/2025
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 10/08/2025 12:13:38 70.79, -5.94 76.78 10/08/2025 12:12:28 70.89, -7.30 76.88 50.94 70
2 10/08/2025 13:03:15 -70.29, 160.96 103.71 10/08/2025 13:03:01 -70.30, 160.97 103.71 0.63 14
3 10/08/2025 13:52:42 70.19, -31.55 76.20 10/08/2025 13:53:45 70.21, -31.57 76.22 1.90 63
4 10/11/2025 04:30:15 70.39, 109.34 77.38 10/11/2025 04:29:17 70.39, 109.28 77.39 2.13 58
5 10/11/2025 05:19:45 -70.28, -83.19 102.72 10/11/2025 05:19:59 -70.27, -83.21 102.72 1.36 14
6 10/11/2025 06:09:23 69.56, 83.46 76.59 10/11/2025 06:10:31 69.54, 85.19 76.57 67.32 68
7 10/13/2025 20:46:45 70.33,-134.86 78.33 10/13/2025 20:46:14 70.32,-134.84 78.32 1.34 31
8 10/13/2025 21:36:15 -70.22, 32.62 101.77 10/13/2025 21:36:57 -70.25, 32.58 101.74 3.10 42
9 10/16/2025 12:13:44 -70.52, 173.65 100.51 10/16/2025 12:12:31 -70.61, 173.16 100.42 20.81 73
10 10/16/2025 13:03:13 70.29, -19.03 79.28 10/16/2025 13:03:11 70.31, -19.06 79.31 2.46 2
11 10/16/2025 13:52:43 -70.19, 148.45 100.81 10/16/2025 13:53:53 -70.19, 148.45 100.81 0.19 70
12 10/19/2025 04:30:15 -70.34, -70.73 99.72 10/19/2025 04:29:24 -70.35, -70.66 99.70 2.87 51
13 10/19/2025 05:19:41 70.28, 96.83 80.24 10/19/2025 05:20:08 70.26, 96.79 80.23 2.21 27

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 10/6/2025
SNOs_Map_LANDSAT-8_NPP_20251006.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 10/06/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP