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: 11/15/2025
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 -70.03, 10.78 91.10 11/16/2025 23:02:50 -70.04, 10.71 91.09 3.04 38
2 11/16/2025 23:52:57 69.94, 178.23 88.82 11/16/2025 23:52:17 69.94, 178.21 88.82 0.73 40
3 11/19/2025 14:28:36 70.40, -41.35 89.90 11/19/2025 14:29:47 70.31, -40.66 89.81 27.27 71
4 11/19/2025 15:19:12 -70.01, 126.58 90.49 11/19/2025 15:19:20 -70.04, 126.58 90.47 3.14 8
5 11/19/2025 16:09:57 69.92, -65.98 89.43 11/19/2025 16:08:47 69.93, -65.93 89.44 2.28 70
6 11/22/2025 06:45:30 70.07, 74.92 90.16 11/22/2025 06:46:20 70.09, 74.90 90.18 2.07 50
7 11/22/2025 07:36:12 -70.00,-117.65 89.91 11/22/2025 07:35:50 -69.98,-117.62 89.93 1.83 22
8 11/22/2025 08:26:39 68.95, 51.17 89.06 11/22/2025 08:25:33 68.99, 48.69 89.09 98.82 66
9 11/24/2025 22:12:02 -71.04, 21.80 88.32 11/24/2025 22:13:08 -70.92, 24.37 88.45 94.21 66
10 11/24/2025 23:02:29 70.02,-169.25 90.66 11/24/2025 23:02:49 70.04,-169.28 90.68 2.80 20
11 11/24/2025 23:53:11 -69.94, -1.81 89.42 11/24/2025 23:52:19 -69.94, -1.79 89.42 0.64 52
12 11/27/2025 14:28:43 -70.11, 139.07 88.76 11/27/2025 14:29:49 -70.13, 139.08 88.75 1.49 66
13 11/27/2025 15:19:27 69.98, -53.43 91.12 11/27/2025 15:19:16 70.01, -53.44 91.14 2.86 11
14 11/27/2025 16:10:03 -69.59, 114.48 89.28 11/27/2025 16:08:51 -69.63, 113.67 89.23 32.05 72

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/15/2025
SNOs_Map_NOAA-20_LANDSAT-8_20251116.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 11/15/2025 in txt file.

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