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: 11/13/2025
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 11/14/2025 19:57:10 -70.64, 57.95 91.02 11/14/2025 19:55:58 -70.70, 57.26 90.96 26.51 72
2 11/14/2025 20:46:41 70.32,-134.88 88.66 11/14/2025 20:46:37 70.32,-134.81 88.67 2.79 4
3 11/14/2025 21:36:10 -70.26, 32.67 91.39 11/14/2025 21:37:19 -70.24, 32.64 91.41 2.32 69
4 11/17/2025 12:13:40 -70.40, 173.49 90.60 11/17/2025 12:12:48 -70.40, 173.53 90.60 1.34 52
5 11/17/2025 13:03:07 70.29, -19.02 89.31 11/17/2025 13:03:32 70.28, -18.96 89.29 2.93 25
6 11/17/2025 13:52:52 -69.36, 147.32 91.63 11/17/2025 13:53:58 -69.35, 149.74 91.62 94.93 66
7 11/20/2025 03:40:23 71.16, 122.91 90.79 11/20/2025 03:39:15 71.19, 120.69 90.82 79.77 68
8 11/20/2025 04:30:05 -70.39, -70.62 89.98 11/20/2025 04:29:43 -70.38, -70.65 90.00 1.76 22
9 11/20/2025 05:19:32 70.28, 96.86 89.92 11/20/2025 05:20:27 70.25, 96.86 89.89 3.34 55
10 11/22/2025 19:56:59 70.44,-122.28 90.65 11/22/2025 19:55:55 70.44,-122.29 90.65 0.31 64
11 11/22/2025 20:46:29 -70.33, 45.20 89.46 11/22/2025 20:46:36 -70.31, 45.24 89.48 2.78 7
12 11/22/2025 21:36:03 69.83,-147.87 90.05 11/22/2025 21:37:13 69.82,-146.69 90.04 45.32 70
13 11/25/2025 12:13:23 70.39, -6.45 91.13 11/25/2025 12:12:49 70.39, -6.42 91.14 1.01 34
14 11/25/2025 13:02:53 -70.28, 161.03 88.97 11/25/2025 13:03:30 -70.26, 161.10 88.99 3.52 37

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 11/13/2025
SNOs_Map_LANDSAT-8_NPP_20251113.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 11/13/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP