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: 6/22/2025
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 06/23/2025 06:44:25 -70.93,-106.39 132.47 06/23/2025 06:45:32 -70.85,-103.94 132.65 89.72 67
2 06/23/2025 07:34:53 69.97, 62.46 46.51 06/23/2025 07:35:13 69.98, 62.43 46.52 1.76 20
3 06/23/2025 08:25:35 -69.88,-130.09 133.58 06/23/2025 08:24:43 -69.87,-130.09 133.59 1.26 52
4 06/25/2025 23:01:09 -70.03, 10.81 133.36 06/25/2025 23:02:17 -70.04, 10.75 133.35 3.03 68
5 06/25/2025 23:51:54 69.95, 178.23 46.56 06/25/2025 23:51:44 69.94, 178.25 46.55 1.70 10
6 06/26/2025 00:42:30 -69.55, -13.85 133.86 06/26/2025 00:41:18 -69.61, -14.57 133.76 28.82 72
7 06/28/2025 15:18:10 -70.01, 126.59 133.26 06/28/2025 15:18:48 -69.99, 126.56 133.29 2.61 38
8 06/28/2025 16:08:54 69.88, -65.92 46.61 06/28/2025 16:08:15 69.88, -65.95 46.61 1.53 39
9 07/01/2025 06:44:33 70.35, 74.49 47.27 07/01/2025 06:45:44 70.24, 75.17 47.12 28.14 71
10 07/01/2025 07:35:09 -69.95,-117.57 133.16 07/01/2025 07:35:17 -69.98,-117.58 133.13 3.39 8
11 07/01/2025 08:25:54 69.87, 49.85 46.77 07/01/2025 08:24:44 69.86, 49.91 46.77 2.45 70
12 07/03/2025 23:01:28 70.03,-169.26 47.14 07/03/2025 23:02:17 70.05,-169.23 47.15 2.72 49
13 07/03/2025 23:52:10 -69.94, -1.81 132.95 07/03/2025 23:51:47 -69.95, -1.73 132.94 3.10 23

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 6/22/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250622.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 06/22/2025 in txt file.

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