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: 8/30/2025
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 09/01/2025 23:26:57 -69.98, 4.53 117.99 09/01/2025 23:27:27 -70.00, 4.51 117.98 1.78 30
2 09/02/2025 00:17:41 69.88, 172.00 61.92 09/02/2025 00:16:54 69.90, 172.01 61.94 2.36 47
3 09/04/2025 14:53:14 70.35, -47.58 63.36 09/04/2025 14:54:25 70.27, -46.86 63.25 28.26 71
4 09/04/2025 15:43:51 -69.98, 120.31 117.01 09/04/2025 15:43:58 -69.99, 120.38 117.01 2.75 7
5 09/04/2025 16:34:34 69.83, -72.15 62.85 09/04/2025 16:33:26 69.83, -72.20 62.86 1.97 68
6 09/07/2025 07:10:01 70.05, 68.67 64.04 09/07/2025 07:10:58 70.06, 68.72 64.05 2.35 57
7 09/07/2025 08:00:43 -69.94,-123.85 116.06 09/07/2025 08:00:28 -69.96,-123.80 116.05 2.43 15
8 09/07/2025 08:51:15 69.21, 44.53 63.20 09/07/2025 08:50:06 69.24, 42.88 63.27 65.45 69
9 09/09/2025 23:26:54 70.02,-175.50 65.02 09/09/2025 23:27:29 69.99,-175.50 64.98 3.15 35
10 09/10/2025 00:17:36 -69.91, -8.01 115.09 09/10/2025 00:16:59 -69.89, -8.01 115.11 2.37 37
11 09/12/2025 14:53:14 -70.66, 131.96 113.32 09/12/2025 14:54:23 -70.55, 133.54 113.48 59.79 69
12 09/12/2025 15:43:47 70.00, -59.68 66.01 09/12/2025 15:43:58 70.00, -59.61 66.00 2.84 11
13 09/12/2025 16:34:29 -69.88, 107.81 114.10 09/12/2025 16:33:28 -69.89, 107.88 114.09 3.10 61

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/30/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250831.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/30/2025 in txt file.

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