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: 9/28/2025
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 09/29/2025 23:01:28 -70.69, 9.89 106.61 09/29/2025 23:02:37 -70.55, 11.47 106.76 60.44 69
2 09/29/2025 23:52:01 70.01, 178.26 72.72 09/29/2025 23:52:12 70.01, 178.33 72.72 2.69 11
3 09/30/2025 00:42:43 -69.91, -14.26 107.37 09/30/2025 00:41:42 -69.89, -14.19 107.39 3.20 61
4 10/02/2025 15:18:08 -70.09, 126.62 106.18 10/02/2025 15:19:12 -70.08, 126.67 106.20 2.79 64
5 10/02/2025 16:08:51 69.94, -65.84 73.69 10/02/2025 16:08:39 69.97, -65.83 73.71 2.92 12
6 10/02/2025 16:59:26 -69.47, 102.17 106.78 10/02/2025 16:58:15 -69.53, 101.19 106.72 38.84 71
7 10/05/2025 07:34:59 -70.03,-117.50 105.21 10/05/2025 07:35:39 -70.05,-117.47 105.19 2.50 40
8 10/05/2025 08:25:43 69.94, 49.95 74.72 10/05/2025 08:25:06 69.94, 50.02 74.72 2.72 37
9 10/07/2025 23:01:19 70.67,-170.04 76.46 10/07/2025 23:02:28 70.54,-168.50 76.32 58.62 69
10 10/07/2025 23:51:50 -69.99, -1.64 104.23 10/07/2025 23:52:06 -69.99, -1.66 104.23 0.99 16
11 10/08/2025 00:42:34 69.89, 165.81 75.69 10/08/2025 00:41:33 69.88, 165.83 75.68 1.58 61
12 10/10/2025 15:17:59 70.06, -53.28 76.85 10/10/2025 15:19:02 70.05, -53.31 76.84 1.64 63
13 10/10/2025 16:08:41 -69.95, 114.20 103.25 10/10/2025 16:08:32 -69.95, 114.17 103.26 1.41 9
14 10/10/2025 16:59:16 69.38, -77.65 76.20 10/10/2025 16:58:06 69.44, -78.87 76.26 48.40 70

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/28/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250929.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 09/28/2025 in txt file.

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