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: 7/20/2025
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 07/22/2025 14:28:07 -70.85, 137.86 129.24 07/22/2025 14:29:14 -70.78, 140.10 129.40 81.92 67
2 07/22/2025 15:18:37 69.98, -53.45 49.85 07/22/2025 15:18:54 69.97, -53.46 49.83 1.51 17
3 07/22/2025 16:09:18 -69.86, 114.05 130.28 07/22/2025 16:08:24 -69.86, 114.03 130.27 1.09 54
4 07/25/2025 06:44:47 -70.04,-105.07 129.54 07/25/2025 06:45:57 -70.06,-105.09 129.53 3.07 70
5 07/25/2025 07:35:32 69.96, 62.36 50.38 07/25/2025 07:35:24 69.96, 62.41 50.38 1.59 8
6 07/25/2025 08:26:09 -69.62,-129.82 129.97 07/25/2025 08:24:57 -69.69,-130.34 129.87 21.36 72
7 07/27/2025 23:01:42 -70.01, 10.75 128.97 07/27/2025 23:02:27 -70.04, 10.76 128.95 3.14 45
8 07/27/2025 23:52:27 69.93, 178.17 50.96 07/27/2025 23:51:54 69.93, 178.25 50.95 3.08 33
9 07/30/2025 14:28:08 70.81, -42.06 52.51 07/30/2025 14:29:15 70.70, -40.01 52.31 75.87 67
10 07/30/2025 15:18:36 -69.99, 126.55 128.36 07/30/2025 15:18:56 -70.00, 126.59 128.35 1.81 20
11 07/30/2025 16:09:20 69.86, -65.95 51.52 07/30/2025 16:08:23 69.89, -65.93 51.55 2.54 57
12 08/02/2025 06:44:49 70.06, 74.91 52.38 08/02/2025 06:45:56 70.05, 74.91 52.36 1.19 67
13 08/02/2025 07:35:31 -69.97,-117.64 127.70 08/02/2025 07:35:26 -69.95,-117.60 127.73 3.14 5
14 08/02/2025 08:26:09 69.53, 50.32 51.85 08/02/2025 08:24:57 69.61, 49.58 51.96 29.93 72

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/20/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250720.jpg

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

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