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: 2/21/2025
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 02/21/2025 23:26:08 -70.60, 3.62 99.12 02/21/2025 23:27:17 -70.52, 5.19 99.28 59.08 69
2 02/22/2025 00:16:42 69.95, 171.94 80.18 02/22/2025 00:16:53 69.93, 171.98 80.15 2.60 11
3 02/22/2025 01:07:23 -69.82, -20.55 99.98 02/22/2025 01:06:23 -69.81, -20.54 99.97 0.76 60
4 02/24/2025 15:42:50 -69.99, 120.35 100.76 02/24/2025 15:43:54 -69.97, 120.28 100.79 3.59 64
5 02/24/2025 16:33:34 69.86, -72.15 79.10 02/24/2025 16:33:21 69.86, -72.22 79.10 2.81 13
6 02/24/2025 17:24:08 -69.37, 95.89 101.45 02/24/2025 17:22:57 -69.42, 94.81 101.33 42.94 71
7 02/27/2025 07:59:42 -69.97,-123.84 101.78 02/27/2025 08:00:19 -69.97,-123.82 101.79 0.74 37
8 02/27/2025 08:50:26 69.84, 43.66 78.07 02/27/2025 08:49:46 69.86, 43.67 78.09 2.06 40
9 03/01/2025 23:26:00 70.41,-176.06 77.68 03/01/2025 23:27:10 70.32,-175.08 77.53 38.29 70
10 03/02/2025 00:16:34 -69.91, -7.97 102.87 03/02/2025 00:16:45 -69.93, -7.99 102.85 2.38 11
11 03/02/2025 01:07:19 69.84, 159.45 77.04 03/02/2025 01:06:12 69.82, 159.50 77.03 2.93 67
12 03/04/2025 15:42:45 69.99, -59.63 76.20 03/04/2025 15:43:40 70.01, -59.62 76.21 1.83 55
13 03/04/2025 16:33:27 -69.92, 107.80 103.90 03/04/2025 16:33:10 -69.90, 107.87 103.91 2.95 17
14 03/04/2025 17:23:57 69.05, -83.64 75.18 03/04/2025 17:22:49 69.12, -85.54 75.35 75.93 68

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/21/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250221.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 02/21/2025 in txt file.

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