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: 10/13/2025
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 10/15/2025 23:51:40 70.02, 178.37 78.81 10/15/2025 23:52:14 70.05, 178.38 78.84 3.41 34
2 10/16/2025 00:42:22 -69.93, -14.17 101.28 10/16/2025 00:41:44 -69.94, -14.15 101.27 1.57 38
3 10/18/2025 15:17:58 -70.69, 125.79 99.55 10/18/2025 15:19:07 -70.60, 127.43 99.65 61.09 69
4 10/18/2025 16:08:31 70.01, -65.82 79.78 10/18/2025 16:08:43 70.00, -65.80 79.77 0.99 12
5 10/18/2025 16:59:13 -69.92, 101.64 100.31 10/18/2025 16:58:13 -69.90, 101.68 100.33 2.92 60
6 10/21/2025 07:34:38 -70.12,-117.50 99.18 10/21/2025 07:35:44 -70.10,-117.43 99.20 3.41 66
7 10/21/2025 08:25:21 69.96, 50.05 80.68 10/21/2025 08:25:11 69.98, 50.06 80.71 3.12 10
8 10/21/2025 09:15:57 -69.55,-142.02 99.72 10/21/2025 09:14:46 -69.60,-142.84 99.67 32.25 71
9 10/23/2025 23:51:27 -70.07, -1.64 98.28 10/23/2025 23:52:11 -70.05, -1.61 98.30 2.65 44
10 10/24/2025 00:42:10 69.91, 165.92 81.58 10/24/2025 00:41:38 69.93, 165.88 81.60 2.91 32
11 10/26/2025 15:17:49 70.86, -54.43 83.43 10/26/2025 15:18:56 70.79, -52.26 83.36 79.48 67
12 10/26/2025 16:08:17 -70.04, 114.22 97.40 10/26/2025 16:08:38 -70.03, 114.25 97.41 1.67 21
13 10/26/2025 16:59:01 69.93, -78.32 82.52 10/26/2025 16:58:05 69.91, -78.27 82.49 2.86 56

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/13/2025
SNOs_Map_NOAA-20_LANDSAT-8_20251014.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 10/13/2025 in txt file.

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