Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/12/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 09/13/2025 23:01:30 -70.10, 10.74 113.39 09/13/2025 23:02:42 -70.10, 10.82 113.40 3.18 72
2 09/13/2025 23:52:13 69.95, 178.28 66.47 09/13/2025 23:52:10 69.94, 178.25 66.46 1.33 3
3 09/14/2025 00:42:54 -69.79, -14.17 113.68 09/14/2025 00:41:40 -69.83, -14.27 113.64 6.01 74
4 09/16/2025 15:18:21 -70.03, 126.64 112.44 09/16/2025 15:19:13 -70.05, 126.63 112.42 3.13 52
5 09/16/2025 16:09:05 69.93, -65.91 67.47 09/16/2025 16:08:40 69.95, -65.87 67.49 2.67 25
6 09/16/2025 16:59:32 -69.03, 102.71 113.44 09/16/2025 16:58:24 -69.07, 100.58 113.36 84.90 68
7 09/19/2025 07:35:14 -70.01,-117.55 111.43 09/19/2025 07:35:45 -70.00,-117.57 111.44 0.98 31
8 09/19/2025 08:25:58 69.92, 49.90 68.49 09/19/2025 08:25:12 69.89, 49.93 68.47 2.62 46
9 09/21/2025 23:01:31 70.43,-169.73 70.03 09/21/2025 23:02:42 70.32,-168.87 69.90 34.32 71
10 09/21/2025 23:52:07 -70.00, -1.75 110.41 09/21/2025 23:52:16 -70.00, -1.70 110.41 1.83 9
11 09/22/2025 00:42:50 69.85, 165.78 69.47 09/22/2025 00:41:44 69.83, 165.71 69.45 3.42 66
12 09/24/2025 15:18:17 70.05, -53.37 70.68 09/24/2025 15:19:18 70.03, -53.41 70.66 2.89 61
13 09/24/2025 16:08:59 -69.93, 114.13 109.43 09/24/2025 16:08:48 -69.93, 114.08 109.43 1.83 11
14 09/24/2025 16:59:33 69.32, -77.66 69.96 09/24/2025 16:58:23 69.37, -79.03 70.04 54.24 70

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/12/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250913.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 09/12/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-8