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: 11/19/2025
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 11/22/2025 06:45:30 70.07, 74.92 90.16 11/22/2025 06:46:21 70.06, 74.85 90.15 2.83 51
2 11/22/2025 07:36:12 -70.00,-117.65 89.91 11/22/2025 07:35:50 -70.00,-117.59 89.91 2.45 22
3 11/22/2025 08:26:39 68.95, 51.17 89.05 11/22/2025 08:25:33 69.01, 48.72 89.12 97.81 66
4 11/24/2025 22:12:03 -71.09, 21.73 88.28 11/24/2025 22:13:08 -70.99, 24.47 88.38 99.86 65
5 11/24/2025 23:02:30 70.06,-169.31 90.70 11/24/2025 23:02:50 70.06,-169.26 90.70 1.87 20
6 11/24/2025 23:53:11 -69.93, -1.80 89.43 11/24/2025 23:52:20 -69.96, -1.78 89.41 2.81 51
7 11/27/2025 14:28:43 -70.09, 139.10 88.79 11/27/2025 14:29:52 -70.10, 139.03 88.77 3.29 69
8 11/27/2025 15:19:28 70.01, -53.47 91.14 11/27/2025 15:19:19 69.99, -53.48 91.13 1.77 9
9 11/27/2025 16:10:05 -69.66, 114.36 89.20 11/27/2025 16:08:52 -69.72, 113.78 89.14 23.61 73
10 11/30/2025 06:45:43 -70.09,-105.14 88.33 11/30/2025 06:46:21 -70.06,-105.14 88.36 2.69 38
11 11/30/2025 07:36:27 69.96, 62.37 91.55 11/30/2025 07:35:48 69.95, 62.34 91.54 1.42 39
12 12/02/2025 22:12:05 70.39,-157.17 92.38 12/02/2025 22:13:16 70.32,-156.52 92.30 25.65 71
13 12/02/2025 23:02:42 -70.04, 10.69 87.97 12/02/2025 23:02:49 -70.05, 10.73 87.96 1.98 7
14 12/02/2025 23:53:26 69.92, 178.19 91.91 12/02/2025 23:52:16 69.94, 178.21 91.93 2.42 70

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/19/2025
SNOs_Map_NOAA-20_LANDSAT-8_20251120.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 11/19/2025 in txt file.

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