Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-8 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 9/8/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-8) Time (LANDSAT-8) Lat,Lon (LANDSAT-8) SZA (LANDSAT-8 ) Distance(km) Time Diff (sec)
1 09/11/2025 06:44:51 -70.87,-106.27 113.61 09/11/2025 06:45:58 -70.75,-104.08 113.78 81.28 67
2 09/11/2025 07:35:20 69.99, 62.44 65.49 09/11/2025 07:35:37 70.00, 62.46 65.49 1.38 17
3 09/11/2025 08:26:02 -69.88,-130.08 114.61 09/11/2025 08:25:07 -69.88,-130.07 114.61 0.60 55
4 09/13/2025 23:01:29 -70.06, 10.81 113.44 09/13/2025 23:02:39 -70.07, 10.80 113.43 1.63 70
5 09/13/2025 23:52:13 69.96, 178.26 66.48 09/13/2025 23:52:06 69.97, 178.30 66.48 1.43 7
6 09/14/2025 00:42:51 -69.64, -13.95 113.84 09/14/2025 00:41:38 -69.75, -14.38 113.72 20.09 73
7 09/16/2025 15:18:22 -70.04, 126.62 112.43 09/16/2025 15:19:08 -70.02, 126.62 112.45 1.32 46
8 09/16/2025 16:09:05 69.89, -65.85 67.44 09/16/2025 16:08:35 69.92, -65.89 67.46 2.97 30
9 09/19/2025 06:44:46 70.87, 73.76 69.45 09/19/2025 06:45:53 70.77, 75.98 69.32 81.83 67
10 09/19/2025 07:35:14 -70.02,-117.57 111.42 09/19/2025 07:35:35 -70.01,-117.51 111.43 2.55 21
11 09/19/2025 08:25:57 69.88, 49.95 68.46 09/19/2025 08:25:02 69.90, 49.98 68.48 2.23 55
12 09/21/2025 23:01:24 70.08,-169.19 69.67 09/21/2025 23:02:33 70.08,-169.16 69.67 1.18 69
13 09/21/2025 23:52:06 -69.96, -1.69 110.44 09/21/2025 23:52:03 -69.98, -1.67 110.43 2.14 3
14 09/22/2025 00:42:45 69.61, 166.14 69.22 09/22/2025 00:41:33 69.70, 165.59 69.31 23.52 72

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/8/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250909.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 09/08/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-8