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: 4/23/2025
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 04/24/2025 07:59:28 69.99, 56.21 56.94 04/24/2025 07:59:57 70.00, 56.18 56.94 1.16 29
2 04/24/2025 08:50:10 -69.90,-136.34 123.17 04/24/2025 08:49:27 -69.88,-136.35 123.19 2.04 43
3 04/26/2025 23:25:43 -70.14, 4.43 123.76 04/26/2025 23:26:55 -70.11, 4.58 123.81 6.99 72
4 04/27/2025 00:16:25 69.93, 172.07 56.00 04/27/2025 00:16:23 69.95, 172.00 56.02 3.43 2
5 04/27/2025 01:07:06 -69.78, -20.39 124.17 04/27/2025 01:05:54 -69.78, -20.60 124.16 8.10 72
6 04/29/2025 15:42:39 -70.03, 120.36 124.72 04/29/2025 15:43:21 -70.02, 120.35 124.74 0.82 42
7 04/29/2025 16:33:23 69.92, -72.17 55.16 04/29/2025 16:32:48 69.91, -72.16 55.15 1.36 35
8 05/02/2025 07:09:00 70.46, 68.14 54.92 05/02/2025 07:10:10 70.34, 69.07 54.77 36.85 70
9 05/02/2025 07:59:35 -69.98,-123.80 125.59 05/02/2025 07:59:44 -70.01,-123.77 125.56 3.42 9
10 05/02/2025 08:50:19 69.88, 43.67 54.30 05/02/2025 08:49:11 69.89, 43.71 54.32 2.55 68
11 05/04/2025 23:25:50 70.05,-175.46 53.72 05/04/2025 23:26:38 70.06,-175.43 53.72 1.56 48
12 05/05/2025 00:16:32 -69.94, -7.97 126.41 05/05/2025 00:16:08 -69.95, -7.95 126.40 2.03 24

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/23/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250423.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/23/2025 in txt file.

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