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: 7/19/2025
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 07/19/2025 23:01:43 70.03,-169.30 49.38 07/19/2025 23:02:24 70.00,-169.29 49.34 3.28 41
2 07/19/2025 23:52:24 -69.91, -1.80 130.74 07/19/2025 23:51:54 -69.89, -1.81 130.76 2.28 30
3 07/22/2025 14:28:08 -70.87, 137.83 129.22 07/22/2025 14:29:15 -70.77, 140.07 129.42 82.55 67
4 07/22/2025 15:18:37 70.00, -53.48 49.87 07/22/2025 15:18:53 70.01, -53.40 49.87 2.86 16
5 07/22/2025 16:09:18 -69.88, 114.03 130.26 07/22/2025 16:08:23 -69.90, 114.08 130.23 2.92 55
6 07/25/2025 06:44:47 -70.06,-105.09 129.52 07/25/2025 06:45:57 -70.05,-105.11 129.54 0.76 70
7 07/25/2025 07:35:31 69.92, 62.42 50.35 07/25/2025 07:35:24 69.94, 62.38 50.37 2.30 7
8 07/25/2025 08:26:09 -69.64,-129.84 129.95 07/25/2025 08:24:56 -69.73,-130.28 129.83 19.55 73
9 07/27/2025 23:01:42 -70.03, 10.72 128.95 07/27/2025 23:02:27 -70.03, 10.75 128.96 0.93 45
10 07/27/2025 23:52:26 69.90, 178.22 50.92 07/27/2025 23:51:54 69.92, 178.23 50.94 1.93 32
11 07/30/2025 14:28:09 70.82, -42.08 52.52 07/30/2025 14:29:16 70.70, -40.02 52.31 76.82 67
12 07/30/2025 15:18:37 -70.00, 126.53 128.34 07/30/2025 15:18:57 -70.00, 126.58 128.36 2.11 20
13 07/30/2025 16:09:21 69.88, -65.97 51.54 07/30/2025 16:08:24 69.88, -65.94 51.55 1.40 57

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/19/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250719.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 07/19/2025 in txt file.

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