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: 9/23/2025
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 15:18:17 70.06, -53.38 70.69 09/24/2025 15:19:15 70.04, -53.38 70.67 2.01 58
2 09/24/2025 16:08:59 -69.96, 114.09 109.40 09/24/2025 16:08:45 -69.93, 114.09 109.43 3.22 14
3 09/24/2025 16:59:31 69.22, -77.52 69.87 09/24/2025 16:58:22 69.28, -79.16 69.94 64.65 69
4 09/27/2025 07:35:08 70.02, 62.46 71.69 09/27/2025 07:35:43 70.03, 62.48 71.70 0.62 35
5 09/27/2025 08:25:50 -69.92,-130.06 108.41 09/27/2025 08:25:13 -69.92,-130.05 108.41 0.44 37
6 09/29/2025 23:01:27 -70.67, 9.93 106.63 09/29/2025 23:02:36 -70.57, 11.51 106.74 59.25 69
7 09/29/2025 23:52:00 70.00, 178.29 72.71 09/29/2025 23:52:12 69.97, 178.28 72.68 2.58 12
8 09/30/2025 00:42:42 -69.89, -14.23 107.40 09/30/2025 00:41:42 -69.86, -14.24 107.42 2.67 60
9 10/02/2025 15:18:08 -70.07, 126.66 106.20 10/02/2025 15:19:13 -70.05, 126.63 106.23 2.85 65
10 10/02/2025 16:08:51 69.93, -65.81 73.67 10/02/2025 16:08:40 69.93, -65.88 73.68 2.77 11
11 10/02/2025 16:59:27 -69.50, 102.13 106.75 10/02/2025 16:58:15 -69.55, 101.23 106.69 35.76 72
12 10/05/2025 07:34:59 -70.01,-117.46 105.23 10/05/2025 07:35:40 -70.03,-117.50 105.22 2.64 41
13 10/05/2025 08:25:43 69.92, 49.99 74.70 10/05/2025 08:25:07 69.91, 49.98 74.69 0.62 36

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/23/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250924.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 09/23/2025 in txt file.

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