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: 3/19/2025
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 70.05, -59.63 69.94 03/20/2025 15:43:35 70.03, -59.61 69.91 2.17 69
2 03/20/2025 16:33:07 -69.93, 107.86 110.20 03/20/2025 16:33:05 -69.91, 107.86 110.22 2.27 2
3 03/20/2025 17:23:47 69.58, -84.31 69.42 03/20/2025 17:22:35 69.64, -84.87 69.51 22.53 72
4 03/23/2025 07:59:16 69.99, 56.24 68.82 03/23/2025 07:59:59 69.98, 56.22 68.79 1.96 43
5 03/23/2025 08:49:57 -69.88,-136.26 111.33 03/23/2025 08:49:29 -69.86,-136.31 111.34 2.21 28
6 03/25/2025 23:25:35 -70.77, 3.50 111.42 03/25/2025 23:26:43 -70.69, 5.51 111.58 74.39 68
7 03/26/2025 00:16:06 69.96, 172.08 67.72 03/26/2025 00:16:21 69.97, 172.12 67.73 1.98 15
8 03/26/2025 01:06:47 -69.84, -20.41 112.43 03/26/2025 01:05:51 -69.86, -20.41 112.40 2.61 56
9 03/28/2025 15:42:11 -70.01, 120.49 113.27 03/28/2025 15:43:16 -70.02, 120.44 113.27 1.98 65
10 03/28/2025 16:32:55 69.88, -72.01 66.59 03/28/2025 16:32:43 69.90, -72.07 66.61 2.94 12
11 03/28/2025 17:23:30 -69.44, 95.96 113.89 03/28/2025 17:22:19 -69.46, 94.96 113.83 39.05 71
12 03/31/2025 07:59:00 -70.00,-123.70 114.33 03/31/2025 07:59:35 -70.00,-123.67 114.34 1.29 35
13 03/31/2025 08:49:44 69.88, 43.79 65.54 03/31/2025 08:49:02 69.88, 43.81 65.54 0.96 42

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/19/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250319.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 03/19/2025 in txt file.

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