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: 7/1/2025
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 07/01/2025 21:35:42 70.26,-147.29 47.19 07/01/2025 21:35:18 70.24,-147.35 47.17 3.06 24
2 07/01/2025 22:25:12 -70.15, 20.18 132.92 07/01/2025 22:26:00 -70.16, 20.10 132.92 2.96 48
3 07/04/2025 13:02:43 -70.39, 161.13 132.48 07/04/2025 13:01:30 -70.41, 160.85 132.43 10.70 73
4 07/04/2025 13:52:12 70.17, -31.54 47.32 07/04/2025 13:52:12 70.19, -31.49 47.34 2.75 0
5 07/04/2025 14:41:41 -70.12, 136.02 132.73 07/04/2025 14:42:54 -70.10, 135.96 132.75 2.56 73
6 07/07/2025 05:19:14 -70.28, -83.14 132.30 07/07/2025 05:18:23 -70.26, -83.13 132.32 2.78 51
7 07/07/2025 06:08:41 70.17, 84.35 47.60 07/07/2025 06:09:08 70.19, 84.29 47.61 2.92 27
8 07/07/2025 06:58:27 -69.19,-109.37 133.33 07/07/2025 06:59:33 -69.21,-106.94 133.41 95.82 66
9 07/09/2025 20:45:59 71.14,-133.58 48.84 07/09/2025 20:44:53 71.19,-136.20 48.98 94.22 66
10 07/09/2025 21:35:44 -70.22, 32.66 132.05 07/09/2025 21:35:18 -70.21, 32.72 132.05 2.48 26
11 07/09/2025 22:25:11 70.11,-159.86 47.85 07/09/2025 22:26:02 70.09,-159.78 47.83 3.40 51
12 07/12/2025 13:02:43 70.30, -18.98 48.39 07/12/2025 13:01:32 70.31, -18.97 48.41 1.28 71
13 07/12/2025 13:52:13 -70.20, 148.51 131.71 07/12/2025 13:52:13 -70.17, 148.56 131.73 3.30 0
14 07/12/2025 14:41:43 69.92, -44.24 48.04 07/12/2025 14:42:54 69.89, -43.70 47.98 20.82 71

Figure of LANDSAT-8 and NPP satellite orbits during SNOs since TLE Epoch: 7/1/2025
SNOs_Map_LANDSAT-8_NPP_20250701.jpg

Download SNOs between LANDSAT-8 and NPP since TLE EPOCH: 07/01/2025 in txt file.

Historial Predications of SNOs between LANDSAT-8 and NPP