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: 3/18/2025
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 03/20/2025 15:42:26 70.04, -59.62 69.93 03/20/2025 15:43:35 70.04, -59.59 69.92 1.35 69
2 03/20/2025 16:33:07 -69.92, 107.88 110.21 03/20/2025 16:33:05 -69.93, 107.88 110.21 0.72 2
3 03/20/2025 17:23:47 69.57, -84.30 69.41 03/20/2025 17:22:35 69.65, -84.85 69.52 23.27 72
4 03/23/2025 07:59:16 69.99, 56.25 68.81 03/23/2025 07:59:59 69.99, 56.24 68.81 0.77 43
5 03/23/2025 08:49:57 -69.87,-136.25 111.34 03/23/2025 08:49:29 -69.88,-136.29 111.32 1.85 28
6 03/25/2025 23:25:36 -70.81, 3.42 111.37 03/25/2025 23:26:43 -70.70, 5.53 111.56 78.36 67
7 03/26/2025 00:16:06 69.95, 172.09 67.71 03/26/2025 00:16:22 69.93, 172.06 67.69 2.73 16
8 03/26/2025 01:06:47 -69.83, -20.40 112.43 03/26/2025 01:05:52 -69.82, -20.46 112.44 2.55 55
9 03/28/2025 15:42:10 -70.01, 120.50 113.27 03/28/2025 15:43:15 -70.03, 120.47 113.26 3.01 65
10 03/28/2025 16:32:55 69.94, -72.09 66.64 03/28/2025 16:32:42 69.91, -72.05 66.62 2.78 13
11 03/28/2025 17:23:29 -69.44, 95.96 113.90 03/28/2025 17:22:18 -69.47, 94.98 113.82 38.57 71
12 03/31/2025 07:59:00 -70.00,-123.70 114.33 03/31/2025 07:59:35 -70.01,-123.65 114.33 2.13 35
13 03/31/2025 08:49:44 69.88, 43.78 65.54 03/31/2025 08:49:02 69.89, 43.83 65.55 1.75 42

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/18/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250318.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 03/18/2025 in txt file.

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