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: 10/10/2025
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 10/11/2025 04:30:16 70.35, 109.28 77.35 10/11/2025 04:29:17 70.37, 109.30 77.37 2.60 59
2 10/11/2025 05:19:46 -70.24, -83.25 102.76 10/11/2025 05:19:59 -70.26, -83.20 102.74 2.87 13
3 10/11/2025 06:09:24 69.53, 83.41 76.55 10/11/2025 06:10:31 69.53, 85.21 76.55 70.18 67
4 10/13/2025 20:46:45 70.32,-134.89 78.32 10/13/2025 20:46:13 70.30,-134.81 78.30 3.51 32
5 10/13/2025 21:36:15 -70.20, 32.58 101.79 10/13/2025 21:36:56 -70.23, 32.61 101.76 3.27 41
6 10/16/2025 12:13:44 -70.58, 173.74 100.44 10/16/2025 12:12:32 -70.64, 173.11 100.39 23.98 72
7 10/16/2025 13:03:14 70.31, -19.02 79.30 10/16/2025 13:03:11 70.28, -19.02 79.28 2.77 3
8 10/16/2025 13:52:44 -70.20, 148.46 100.80 10/16/2025 13:53:54 -70.22, 148.40 100.78 2.81 70
9 10/19/2025 04:30:16 -70.39, -70.66 99.66 10/19/2025 04:29:25 -70.37, -70.69 99.69 2.95 51
10 10/19/2025 05:19:43 70.28, 96.82 80.24 10/19/2025 05:20:09 70.28, 96.76 80.24 2.32 26
11 10/19/2025 06:09:29 -69.30, -96.90 100.74 10/19/2025 06:10:35 -69.31, -94.48 100.71 95.26 66
12 10/21/2025 19:57:02 71.15,-121.24 82.06 10/21/2025 19:55:55 71.22,-123.65 82.12 86.50 67
13 10/21/2025 20:46:45 -70.34, 45.15 98.76 10/21/2025 20:46:22 -70.31, 45.17 98.78 3.03 23
14 10/21/2025 21:36:12 70.23,-147.37 81.15 10/21/2025 21:37:06 70.22,-147.39 81.15 0.61 54

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 10/10/2025
SNOs_Map_LANDSAT-8_NPP_20251010.jpg

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

Historial Predications of SNOs between LANDSAT-8 and NPP