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 19:57:11 -70.77, 58.14 90.89 11/14/2025 19:56:00 -70.82, 57.07 90.84 39.36 71
2 11/14/2025 20:46:44 70.34,-134.86 88.69 11/14/2025 20:46:37 70.32,-134.82 88.68 2.43 7
3 11/14/2025 21:36:14 -70.23, 32.62 91.42 11/14/2025 21:37:19 -70.25, 32.62 91.40 1.67 65
4 11/17/2025 12:13:47 -70.44, 173.52 90.56 11/17/2025 12:12:48 -70.42, 173.51 90.58 3.05 59
5 11/17/2025 13:03:14 70.34, -18.99 89.35 11/17/2025 13:03:33 70.34, -19.06 89.36 2.85 19
6 11/17/2025 13:52:55 -69.63, 147.65 91.36 11/17/2025 13:54:03 -69.63, 149.34 91.35 65.48 68
7 11/20/2025 04:30:17 -70.38, -70.69 90.00 11/20/2025 04:29:43 -70.40, -70.68 89.98 2.34 34
8 11/20/2025 05:19:44 70.27, 96.79 89.90 11/20/2025 05:20:27 70.27, 96.83 89.91 1.67 43
9 11/22/2025 19:57:12 70.62,-122.08 90.83 11/22/2025 19:56:00 70.68,-122.67 90.89 22.65 72
10 11/22/2025 20:46:44 -70.35, 45.16 89.44 11/22/2025 20:46:36 -70.34, 45.20 89.45 2.01 8
11 11/22/2025 21:36:11 70.24,-147.36 90.46 11/22/2025 21:37:21 70.26,-147.38 90.49 2.99 70
12 11/25/2025 12:13:41 70.42, -6.49 91.16 11/25/2025 12:12:49 70.43, -6.48 91.17 1.23 52
13 11/25/2025 13:03:11 -70.32, 161.00 88.94 11/25/2025 13:03:30 -70.30, 161.05 88.95 2.55 19

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 11/13/2025
SNOs_Map_LANDSAT-8_NPP_20251114.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