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: 10/8/2025
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 10/10/2025 15:18:03 70.30, -53.64 77.09 10/10/2025 15:19:14 70.19, -53.18 76.98 21.13 71
2 10/10/2025 16:08:41 -69.99, 114.15 103.21 10/10/2025 16:08:46 -69.97, 114.14 103.23 2.17 5
3 10/10/2025 16:59:25 69.89, -78.39 76.70 10/10/2025 16:58:13 69.87, -78.36 76.68 2.45 72
4 10/13/2025 07:34:50 70.06, 62.52 77.86 10/13/2025 07:35:46 70.04, 62.48 77.83 2.78 56
5 10/13/2025 08:25:32 -69.96,-130.02 102.23 10/13/2025 08:25:15 -69.99,-129.96 102.21 3.45 17
6 10/13/2025 09:16:02 69.11, 38.52 76.94 10/13/2025 09:14:54 69.21, 36.64 77.03 75.33 68
7 10/15/2025 23:51:40 70.04, 178.34 78.83 10/15/2025 23:52:14 70.02, 178.34 78.81 2.42 34
8 10/16/2025 00:42:22 -69.94, -14.19 101.26 10/16/2025 00:41:44 -69.91, -14.18 101.29 3.13 38
9 10/18/2025 15:17:58 -70.71, 125.77 99.54 10/18/2025 15:19:07 -70.58, 127.39 99.67 61.43 69
10 10/18/2025 16:08:30 69.98, -65.77 79.74 10/18/2025 16:08:43 69.97, -65.85 79.73 3.00 13
11 10/18/2025 16:59:12 -69.88, 101.70 100.35 10/18/2025 16:58:13 -69.87, 101.64 100.36 2.33 59
12 10/21/2025 07:34:37 -70.07,-117.44 99.22 10/21/2025 07:35:44 -70.06,-117.48 99.23 2.20 67
13 10/21/2025 08:25:21 69.97, 50.03 80.70 10/21/2025 08:25:10 70.00, 50.08 80.72 3.38 11
14 10/21/2025 09:15:57 -69.56,-142.04 99.71 10/21/2025 09:14:45 -69.62,-142.80 99.65 30.60 72

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/8/2025
SNOs_Map_NOAA-20_LANDSAT-8_20251008.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 10/08/2025 in txt file.

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