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: 4/21/2025
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 04/21/2025 15:42:31 70.07, -59.67 57.91 04/21/2025 15:43:30 70.07, -59.61 57.90 2.24 59
2 04/21/2025 16:33:12 -69.93, 107.86 122.25 04/21/2025 16:33:00 -69.95, 107.86 122.23 2.46 12
3 04/21/2025 17:23:46 69.27, -83.88 57.07 04/21/2025 17:22:36 69.35, -85.31 57.18 57.15 70
4 04/24/2025 07:59:28 69.99, 56.21 56.94 04/24/2025 07:59:57 70.00, 56.18 56.94 1.20 29
5 04/24/2025 08:50:10 -69.90,-136.33 123.17 04/24/2025 08:49:27 -69.88,-136.35 123.18 1.59 43
6 04/26/2025 23:25:43 -70.14, 4.43 123.77 04/26/2025 23:26:55 -70.11, 4.58 123.81 6.66 72
7 04/27/2025 00:16:25 69.93, 172.07 56.00 04/27/2025 00:16:23 69.94, 172.00 56.02 3.47 2
8 04/27/2025 01:07:06 -69.77, -20.39 124.17 04/27/2025 01:05:54 -69.78, -20.60 124.16 8.31 72
9 04/29/2025 15:42:39 -70.03, 120.37 124.73 04/29/2025 15:43:21 -70.02, 120.35 124.74 1.15 42
10 04/29/2025 16:33:23 69.92, -72.16 55.16 04/29/2025 16:32:48 69.91, -72.17 55.14 1.87 35
11 05/02/2025 07:08:59 70.40, 68.23 54.87 05/02/2025 07:10:10 70.32, 69.05 54.76 31.76 71
12 05/02/2025 07:59:35 -69.97,-123.79 125.59 05/02/2025 07:59:44 -70.00,-123.79 125.57 2.61 9
13 05/02/2025 08:50:19 69.88, 43.67 54.30 05/02/2025 08:49:11 69.88, 43.70 54.31 1.28 68
14 05/04/2025 23:25:50 70.05,-175.46 53.72 05/04/2025 23:26:38 70.04,-175.46 53.70 0.81 48
15 05/05/2025 00:16:32 -69.93, -7.96 126.42 05/05/2025 00:16:08 -69.93, -7.97 126.41 0.53 24

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/21/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250421.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/21/2025 in txt file.

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