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: 10/3/2025
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 10/05/2025 07:34:59 -70.03,-117.50 105.21 10/05/2025 07:35:45 -70.05,-117.50 105.19 1.73 46
2 10/05/2025 08:25:43 69.93, 49.96 74.71 10/05/2025 08:25:12 69.95, 50.00 74.72 2.04 31
3 10/07/2025 23:01:26 71.04,-170.65 76.84 10/07/2025 23:02:31 70.93,-167.95 76.71 98.54 65
4 10/07/2025 23:51:50 -70.00, -1.65 104.22 10/07/2025 23:52:16 -70.00, -1.70 104.22 1.72 26
5 10/08/2025 00:42:34 69.90, 165.81 75.70 10/08/2025 00:41:43 69.89, 165.80 75.69 0.75 51
6 10/10/2025 15:18:01 70.23, -53.54 77.03 10/10/2025 15:19:13 70.16, -53.21 76.95 14.61 72
7 10/10/2025 16:08:40 -69.97, 114.18 103.23 10/10/2025 16:08:45 -69.95, 114.12 103.25 3.42 5
8 10/10/2025 16:59:24 69.87, -78.37 76.69 10/10/2025 16:58:11 69.89, -78.32 76.71 2.80 73
9 10/13/2025 07:34:49 70.07, 62.51 77.86 10/13/2025 07:35:43 70.06, 62.53 77.86 0.95 54
10 10/13/2025 08:25:31 -69.96,-130.02 102.23 10/13/2025 08:25:13 -69.96,-129.98 102.24 1.36 18
11 10/13/2025 09:16:00 69.07, 38.59 76.89 10/13/2025 09:14:53 69.12, 36.54 76.95 81.77 67
12 10/15/2025 23:51:39 70.02, 178.37 78.81 10/15/2025 23:52:11 70.02, 178.35 78.80 1.00 32
13 10/16/2025 00:42:21 -69.92, -14.15 101.29 10/16/2025 00:41:41 -69.92, -14.16 101.29 0.29 40

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/3/2025
SNOs_Map_NOAA-20_LANDSAT-8_20251004.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 10/03/2025 in txt file.

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