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: 11/14/2025
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 11/16/2025 23:02:12 -70.04, 10.77 91.09 11/16/2025 23:02:50 -70.04, 10.71 91.10 2.52 38
2 11/16/2025 23:52:57 69.95, 178.22 88.83 11/16/2025 23:52:17 69.93, 178.20 88.81 1.78 40
3 11/19/2025 14:28:36 70.41, -41.36 89.91 11/19/2025 14:29:47 70.31, -40.67 89.80 28.22 71
4 11/19/2025 15:19:12 -70.02, 126.56 90.48 11/19/2025 15:19:20 -70.04, 126.58 90.47 2.04 8
5 11/19/2025 16:09:57 69.93, -66.00 89.44 11/19/2025 16:08:47 69.93, -65.93 89.44 2.55 70
6 11/22/2025 06:45:30 70.08, 74.90 90.17 11/22/2025 06:46:20 70.09, 74.90 90.18 0.64 50
7 11/22/2025 07:36:12 -70.01,-117.66 89.90 11/22/2025 07:35:50 -69.99,-117.61 89.92 3.10 22
8 11/22/2025 08:26:39 68.97, 51.15 89.07 11/22/2025 08:25:33 68.99, 48.69 89.09 98.01 66
9 11/24/2025 22:12:02 -71.06, 21.78 88.30 11/24/2025 22:13:08 -70.93, 24.38 88.44 95.51 66
10 11/24/2025 23:02:29 70.04,-169.27 90.67 11/24/2025 23:02:49 70.05,-169.27 90.68 1.29 20
11 11/24/2025 23:53:11 -69.96, -1.83 89.40 11/24/2025 23:52:19 -69.95, -1.78 89.42 2.11 52
12 11/27/2025 14:28:44 -70.13, 139.04 88.74 11/27/2025 14:29:50 -70.14, 139.09 88.74 2.12 66
13 11/27/2025 15:19:27 70.00, -53.46 91.14 11/27/2025 15:19:16 70.02, -53.43 91.16 2.00 11
14 11/27/2025 16:10:03 -69.60, 114.46 89.26 11/27/2025 16:08:51 -69.65, 113.68 89.22 30.25 72

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/14/2025
SNOs_Map_NOAA-20_LANDSAT-8_20251115.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 11/14/2025 in txt file.

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