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: 7/8/2025
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 07/09/2025 20:46:00 71.11,-133.62 48.81 07/09/2025 20:44:53 71.16,-136.15 48.96 91.14 67
2 07/09/2025 21:35:44 -70.24, 32.68 132.03 07/09/2025 21:35:19 -70.25, 32.66 132.01 1.55 25
3 07/09/2025 22:25:11 70.13,-159.82 47.88 07/09/2025 22:26:03 70.12,-159.83 47.86 1.53 52
4 07/12/2025 13:02:42 70.33, -18.94 48.41 07/12/2025 13:01:32 70.34, -19.01 48.44 3.00 70
5 07/12/2025 13:52:12 -70.22, 148.54 131.69 07/12/2025 13:52:13 -70.21, 148.51 131.69 1.52 1
6 07/12/2025 14:41:42 69.94, -44.21 48.06 07/12/2025 14:42:54 69.92, -43.74 48.01 17.93 72
7 07/15/2025 05:19:11 70.29, 96.89 48.79 07/15/2025 05:18:27 70.30, 96.83 48.81 2.76 44
8 07/15/2025 06:08:41 -70.18, -95.62 131.31 07/15/2025 06:09:08 -70.17, -95.65 131.33 1.97 27
9 07/17/2025 20:46:00 -71.06, 46.31 130.04 07/17/2025 20:44:52 -71.12, 43.94 129.88 85.42 68
10 07/17/2025 21:35:40 70.24,-147.29 49.19 07/17/2025 21:35:22 70.26,-147.34 49.22 3.31 18
11 07/17/2025 22:25:10 -70.14, 20.20 130.91 07/17/2025 22:26:03 -70.13, 20.18 130.91 0.76 53
12 07/20/2025 13:02:42 -70.29, 161.03 130.28 07/20/2025 13:01:32 -70.31, 161.06 130.25 2.09 70
13 07/20/2025 13:52:09 70.17, -31.49 49.62 07/20/2025 13:52:16 70.18, -31.43 49.62 2.25 7
14 07/20/2025 14:41:42 -69.91, 135.77 130.63 07/20/2025 14:42:54 -69.89, 136.32 130.68 21.45 72

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/8/2025
SNOs_Map_LANDSAT-8_NPP_20250708.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/08/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP