Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/29/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 07/29/2025 07:10:08 -69.97,-111.30 128.70 07/29/2025 07:10:41 -69.99,-111.36 128.69 3.07 33
2 07/29/2025 08:00:53 69.88, 56.14 51.22 07/29/2025 08:00:08 69.88, 56.14 51.22 0.30 45
3 07/31/2025 22:36:27 70.34,-163.42 52.34 07/31/2025 22:37:38 70.21,-162.79 52.17 27.66 71
4 07/31/2025 23:27:03 -69.95, 4.50 128.06 07/31/2025 23:27:11 -69.94, 4.45 128.08 2.43 8
5 08/01/2025 00:17:47 69.82, 172.01 51.81 08/01/2025 00:16:38 69.83, 171.95 51.83 2.67 69
6 08/03/2025 14:53:16 70.02, -47.14 52.69 08/03/2025 14:54:10 70.03, -47.16 52.69 1.59 54
7 08/03/2025 15:43:58 -69.94, 120.29 127.39 08/03/2025 15:43:40 -69.92, 120.32 127.40 2.08 18
8 08/03/2025 16:34:27 69.01, -71.06 51.66 08/03/2025 16:33:20 69.09, -73.15 51.83 83.68 67
9 08/06/2025 07:10:10 70.01, 68.64 53.41 08/06/2025 07:10:38 69.99, 68.67 53.38 2.77 28
10 08/06/2025 08:00:51 -69.88,-123.84 126.73 08/06/2025 08:00:08 -69.89,-123.84 126.71 1.15 43
11 08/08/2025 22:36:25 -70.35, 16.59 125.50 08/08/2025 22:37:37 -70.22, 17.24 125.67 28.02 72
12 08/08/2025 23:27:04 69.96,-175.51 54.11 08/08/2025 23:27:07 69.94,-175.52 54.08 3.12 3
13 08/09/2025 00:17:45 -69.83, -7.98 126.03 08/09/2025 00:16:37 -69.84, -8.02 126.01 2.05 68
14 08/11/2025 14:53:14 -70.03, 132.85 125.05 08/11/2025 14:54:08 -70.03, 132.86 125.06 0.44 54
15 08/11/2025 15:43:58 69.92, -59.66 54.84 08/11/2025 15:43:35 69.91, -59.66 54.84 0.48 23

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/29/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250729.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/29/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-9