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: 10/3/2025
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 10/03/2025 23:26:33 -70.03, 4.60 105.72 10/03/2025 23:27:32 -70.07, 4.61 105.69 3.58 59
2 10/04/2025 00:17:17 69.93, 172.07 74.19 10/04/2025 00:17:00 69.91, 172.03 74.17 3.01 17
3 10/04/2025 01:07:48 -69.25, -19.62 106.48 10/04/2025 01:06:39 -69.31, -21.16 106.42 60.85 69
4 10/06/2025 15:43:25 -70.04, 120.38 104.69 10/06/2025 15:44:04 -70.02, 120.42 104.71 2.53 39
5 10/06/2025 16:34:08 69.89, -72.08 75.18 10/06/2025 16:33:31 69.92, -72.09 75.20 3.02 37
6 10/09/2025 07:09:47 70.80, 67.66 77.09 10/09/2025 07:10:54 70.68, 69.63 76.97 73.37 67
7 10/09/2025 08:00:15 -69.96,-123.70 103.75 10/09/2025 08:00:35 -69.97,-123.77 103.73 3.39 20
8 10/09/2025 08:50:58 69.86, 43.76 76.17 10/09/2025 08:50:01 69.87, 43.72 76.17 1.71 57
9 10/11/2025 23:26:24 70.10,-175.43 77.39 10/11/2025 23:27:33 70.08,-175.37 77.38 2.93 69
10 10/12/2025 00:17:06 -70.00, -7.96 102.70 10/12/2025 00:17:03 -69.98, -7.88 102.72 3.39 3
11 10/12/2025 01:07:45 69.63, 159.89 76.95 10/12/2025 01:06:33 69.70, 159.38 77.02 21.31 72
12 10/14/2025 15:43:14 70.04, -59.56 78.34 10/14/2025 15:44:02 70.03, -59.56 78.32 1.34 48
13 10/14/2025 16:33:56 -69.94, 107.91 101.76 10/14/2025 16:33:32 -69.93, 107.93 101.77 1.44 24
14 10/17/2025 08:00:04 70.01, 56.30 79.28 10/17/2025 08:00:30 69.98, 56.26 79.26 3.28 26
15 10/17/2025 08:50:46 -69.90,-136.23 100.81 10/17/2025 08:50:00 -69.88,-136.25 100.84 2.90 46

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/3/2025
SNOs_Map_NOAA-20_LANDSAT-9_20251004.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/03/2025 in txt file.

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