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: 9/22/2025
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 09/24/2025 15:18:16 70.04, -53.35 70.67 09/24/2025 15:19:14 70.06, -53.35 70.69 2.89 58
2 09/24/2025 16:08:58 -69.93, 114.13 109.43 09/24/2025 16:08:44 -69.95, 114.12 109.41 2.03 14
3 09/24/2025 16:59:30 69.20, -77.49 69.84 09/24/2025 16:58:21 69.30, -79.13 69.96 65.48 69
4 09/27/2025 07:35:08 70.00, 62.51 71.67 09/27/2025 07:35:44 69.99, 62.43 71.66 2.88 36
5 09/27/2025 08:25:50 -69.89,-130.02 108.43 09/27/2025 08:25:14 -69.88,-130.09 108.44 2.94 36
6 09/29/2025 23:01:28 -70.68, 9.90 106.61 09/29/2025 23:02:37 -70.54, 11.47 106.77 59.90 69
7 09/29/2025 23:52:01 70.01, 178.26 72.72 09/29/2025 23:52:12 70.00, 178.32 72.71 2.80 11
8 09/30/2025 00:42:43 -69.90, -14.25 107.38 09/30/2025 00:41:42 -69.89, -14.20 107.39 2.65 61
9 10/02/2025 15:18:09 -70.08, 126.64 106.19 10/02/2025 15:19:13 -70.08, 126.68 106.20 1.29 64
10 10/02/2025 16:08:52 69.93, -65.83 73.68 10/02/2025 16:08:40 69.97, -65.84 73.71 3.52 12
11 10/02/2025 16:59:26 -69.45, 102.20 106.80 10/02/2025 16:58:15 -69.53, 101.20 106.71 39.87 71
12 10/05/2025 07:34:59 -70.01,-117.46 105.24 10/05/2025 07:35:40 -70.01,-117.52 105.23 2.64 41
13 10/05/2025 08:25:43 69.92, 49.99 74.69 10/05/2025 08:25:07 69.90, 49.96 74.67 2.25 36

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/22/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250923.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 09/22/2025 in txt file.

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