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: 7/23/2025
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 07/25/2025 06:44:47 -70.05,-105.08 129.53 07/25/2025 06:45:57 -70.05,-105.11 129.55 1.22 70
2 07/25/2025 07:35:32 69.96, 62.35 50.39 07/25/2025 07:35:24 69.94, 62.39 50.37 2.95 8
3 07/25/2025 08:26:09 -69.63,-129.83 129.95 07/25/2025 08:24:56 -69.72,-130.29 129.84 20.16 73
4 07/27/2025 23:01:42 -70.02, 10.73 128.96 07/27/2025 23:02:27 -70.01, 10.72 128.98 1.74 45
5 07/27/2025 23:52:26 69.89, 178.24 50.92 07/27/2025 23:51:54 69.90, 178.21 50.93 1.46 32
6 07/30/2025 14:28:08 70.76, -41.99 52.46 07/30/2025 14:29:16 70.66, -40.08 52.27 71.19 68
7 07/30/2025 15:18:36 -70.00, 126.54 128.34 07/30/2025 15:18:55 -70.01, 126.60 128.34 2.68 19
8 07/30/2025 16:09:20 69.87, -65.96 51.54 07/30/2025 16:08:22 69.90, -65.91 51.56 3.27 58
9 08/02/2025 06:44:49 70.07, 74.89 52.39 08/02/2025 06:45:55 70.04, 74.90 52.35 3.51 66
10 08/02/2025 07:35:30 -69.93,-117.59 127.74 08/02/2025 07:35:25 -69.93,-117.61 127.74 1.11 5
11 08/02/2025 08:26:08 69.49, 50.38 51.80 08/02/2025 08:24:57 69.54, 49.49 51.90 34.93 71
12 08/04/2025 23:01:43 70.01,-169.24 53.03 08/04/2025 23:02:24 70.00,-169.27 53.02 1.72 41
13 08/04/2025 23:52:25 -69.92, -1.79 127.05 08/04/2025 23:51:54 -69.90, -1.78 127.07 2.70 31

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/23/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250723.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 07/23/2025 in txt file.

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