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: 3/21/2025
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 03/23/2025 07:59:16 69.99, 56.25 68.81 03/23/2025 07:59:59 69.98, 56.22 68.79 1.88 43
2 03/23/2025 08:49:57 -69.87,-136.26 111.33 03/23/2025 08:49:29 -69.86,-136.31 111.34 2.70 28
3 03/25/2025 23:25:35 -70.77, 3.50 111.42 03/25/2025 23:26:43 -70.67, 5.49 111.60 73.84 68
4 03/26/2025 00:16:06 69.96, 172.09 67.72 03/26/2025 00:16:21 69.96, 172.10 67.71 0.40 15
5 03/26/2025 01:06:47 -69.84, -20.41 112.43 03/26/2025 01:05:51 -69.84, -20.43 112.41 0.90 56
6 03/28/2025 15:42:10 -70.02, 120.48 113.27 03/28/2025 15:43:14 -70.04, 120.48 113.25 2.80 64
7 03/28/2025 16:32:55 69.94, -72.10 66.65 03/28/2025 16:32:41 69.93, -72.04 66.63 2.95 14
8 03/28/2025 17:23:28 -69.39, 96.03 113.94 03/28/2025 17:22:17 -69.48, 94.99 113.81 41.58 71
9 03/31/2025 07:59:00 -70.01,-123.72 114.31 03/31/2025 07:59:34 -70.00,-123.66 114.34 2.66 34
10 03/31/2025 08:49:44 69.89, 43.77 65.55 03/31/2025 08:49:01 69.88, 43.82 65.54 2.13 43
11 04/02/2025 23:25:10 70.22,-175.55 64.88 04/02/2025 23:26:21 70.17,-175.13 64.81 16.71 71
12 04/03/2025 00:15:48 -69.92, -7.79 115.45 04/03/2025 00:15:53 -69.95, -7.81 115.42 2.84 5
13 04/03/2025 01:06:32 69.81, 159.69 64.42 04/03/2025 01:05:20 69.83, 159.66 64.45 2.46 72

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/21/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250321.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 03/21/2025 in txt file.

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