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: 10/14/2025
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 10/16/2025 12:13:44 -70.58, 173.73 100.45 10/16/2025 12:12:32 -70.62, 173.14 100.41 22.56 72
2 10/16/2025 13:03:14 70.31, -19.02 79.30 10/16/2025 13:03:12 70.32, -19.07 79.31 2.09 2
3 10/16/2025 13:52:44 -70.20, 148.45 100.81 10/16/2025 13:53:54 -70.20, 148.43 100.80 1.20 70
4 10/19/2025 04:30:15 -70.36, -70.70 99.69 10/19/2025 04:29:24 -70.35, -70.67 99.70 1.50 51
5 10/19/2025 05:19:42 70.26, 96.80 80.22 10/19/2025 05:20:08 70.26, 96.79 80.23 0.35 26
6 10/21/2025 19:57:01 71.10,-121.31 82.01 10/21/2025 19:55:53 71.16,-123.54 82.06 80.14 68
7 10/21/2025 20:46:43 -70.34, 45.16 98.75 10/21/2025 20:46:22 -70.36, 45.09 98.73 3.14 21
8 10/21/2025 21:36:10 70.23,-147.36 81.15 10/21/2025 21:37:05 70.21,-147.37 81.14 2.06 55
9 10/24/2025 12:13:41 70.39, -6.51 82.23 10/24/2025 12:12:36 70.38, -6.49 82.22 1.31 65
10 10/24/2025 13:03:11 -70.29, 160.97 97.87 10/24/2025 13:03:18 -70.27, 161.01 97.89 2.63 7
11 10/24/2025 13:52:45 69.79, -32.09 81.64 10/24/2025 13:53:55 69.81, -30.97 81.67 42.96 70
12 10/27/2025 04:30:08 70.36, 109.34 83.11 10/27/2025 04:29:33 70.35, 109.33 83.11 1.09 35
13 10/27/2025 05:19:38 -70.26, -83.18 96.98 10/27/2025 05:20:15 -70.24, -83.17 97.00 2.38 37

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 10/14/2025
SNOs_Map_LANDSAT-8_NPP_20251015.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 10/14/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP