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: 4/14/2025
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 04/14/2025 23:50:48 -70.04, -1.70 119.80 04/14/2025 23:51:33 -70.02, -1.74 119.82 2.20 45
2 04/15/2025 00:41:32 69.91, 165.80 60.06 04/15/2025 00:41:00 69.92, 165.76 60.08 1.96 32
3 04/17/2025 15:17:14 70.60, -54.14 59.85 04/17/2025 15:18:23 70.51, -52.78 59.72 51.31 69
4 04/17/2025 16:07:46 -69.99, 114.14 120.80 04/17/2025 16:08:00 -70.01, 114.13 120.78 3.23 14
5 04/17/2025 16:58:31 69.91, -78.45 59.12 04/17/2025 16:57:27 69.91, -78.37 59.11 3.02 64
6 04/20/2025 07:34:03 70.09, 62.42 58.39 04/20/2025 07:34:57 70.07, 62.47 58.37 2.57 54
7 04/20/2025 08:24:44 -69.94,-130.04 121.78 04/20/2025 08:24:27 -69.96,-130.06 121.76 2.05 17
8 04/20/2025 09:15:14 69.08, 38.52 57.33 04/20/2025 09:14:07 69.13, 36.47 57.44 81.25 67
9 04/22/2025 23:50:59 70.01, 178.30 57.40 04/22/2025 23:51:22 70.03, 178.29 57.42 1.66 23
10 04/23/2025 00:41:41 -69.91, -14.24 122.71 04/23/2025 00:40:52 -69.92, -14.23 122.71 0.53 49
11 04/25/2025 15:17:13 -70.10, 126.61 123.37 04/25/2025 15:18:20 -70.11, 126.65 123.38 1.56 67
12 04/25/2025 16:07:57 70.00, -65.92 56.51 04/25/2025 16:07:47 69.99, -65.87 56.50 2.30 10
13 04/25/2025 16:58:33 -69.58, 102.02 123.94 04/25/2025 16:57:21 -69.66, 101.31 123.83 29.05 72

Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/14/2025
SNOs_Map_NOAA-20_LANDSAT-8_20250414.jpg

Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 04/14/2025 in txt file.

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