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: 10/31/2025
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 11/01/2025 12:13:48 -70.42, 173.49 95.09 11/01/2025 12:12:41 -70.41, 173.47 95.09 1.00 67
2 11/01/2025 13:03:15 70.32, -19.01 84.83 11/01/2025 13:03:25 70.30, -19.04 84.81 2.20 10
3 11/01/2025 13:52:50 -69.93, 148.07 95.56 11/01/2025 13:54:01 -69.89, 148.91 95.59 32.35 71
4 11/04/2025 04:30:18 -70.39, -70.68 94.29 11/04/2025 04:29:37 -70.37, -70.68 94.30 2.27 41
5 11/04/2025 05:19:45 70.28, 96.81 85.62 11/04/2025 05:20:21 70.25, 96.81 85.60 3.07 36
6 11/06/2025 19:57:10 70.87,-121.71 87.00 11/06/2025 19:56:00 70.89,-123.07 87.02 49.69 70
7 11/06/2025 20:46:48 -70.32, 45.11 93.54 11/06/2025 20:46:33 -70.33, 45.16 93.54 2.26 15
8 11/06/2025 21:36:15 70.21,-147.41 86.36 11/06/2025 21:37:17 70.21,-147.35 86.37 2.16 62
9 11/09/2025 12:13:47 70.39, -6.55 87.29 11/09/2025 12:12:47 70.39, -6.47 87.29 2.87 60
10 11/09/2025 13:03:17 -70.28, 160.93 92.81 11/09/2025 13:03:29 -70.29, 160.99 92.79 2.72 12
11 11/09/2025 13:52:53 69.62, -32.36 86.54 11/09/2025 13:54:01 69.60, -30.64 86.53 66.32 68
12 11/12/2025 04:30:14 70.37, 109.31 88.01 11/12/2025 04:29:42 70.36, 109.34 88.01 1.22 32
13 11/12/2025 05:19:44 -70.26, -83.21 92.09 11/12/2025 05:20:24 -70.27, -83.20 92.08 0.89 40

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 10/31/2025
SNOs_Map_LANDSAT-8_NPP_20251101.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 10/31/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP