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: 10/11/2025
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 10/13/2025 20:46:45 70.35,-134.85 78.35 10/13/2025 20:46:14 70.32,-134.84 78.32 3.35 31
2 10/13/2025 21:36:15 -70.23, 32.62 101.76 10/13/2025 21:36:57 -70.25, 32.58 101.74 2.71 42
3 10/16/2025 12:13:44 -70.55, 173.69 100.48 10/16/2025 12:12:31 -70.61, 173.16 100.42 20.61 73
4 10/16/2025 13:03:14 70.28, -19.06 79.27 10/16/2025 13:03:11 70.30, -19.05 79.30 3.11 3
5 10/16/2025 13:52:44 -70.17, 148.41 100.84 10/16/2025 13:53:53 -70.19, 148.45 100.81 2.55 69
6 10/19/2025 04:30:16 -70.35, -70.72 99.71 10/19/2025 04:29:24 -70.34, -70.65 99.71 3.01 52
7 10/19/2025 05:19:43 70.24, 96.76 80.20 10/19/2025 05:20:08 70.25, 96.81 80.22 2.19 25
8 10/19/2025 06:09:28 -69.31, -96.89 100.73 10/19/2025 06:10:34 -69.29, -94.44 100.73 96.22 66
9 10/21/2025 19:57:01 71.15,-121.24 82.06 10/21/2025 19:55:54 71.20,-123.61 82.10 85.00 67
10 10/21/2025 20:46:44 -70.34, 45.15 98.76 10/21/2025 20:46:22 -70.35, 45.12 98.75 1.52 22
11 10/21/2025 21:36:11 70.22,-147.37 81.14 10/21/2025 21:37:05 70.20,-147.35 81.13 2.48 54
12 10/24/2025 12:13:42 70.40, -6.50 82.24 10/24/2025 12:12:37 70.43, -6.56 82.26 3.31 65
13 10/24/2025 13:03:12 -70.30, 160.98 97.86 10/24/2025 13:03:19 -70.31, 160.95 97.85 1.53 7
14 10/24/2025 13:52:46 69.80, -32.08 81.65 10/24/2025 13:53:56 69.85, -31.04 81.71 40.43 70

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 10/11/2025
SNOs_Map_LANDSAT-8_NPP_20251012.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 10/11/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP