Simultaneous Nadir Overpasses (SNOs) Predictions

Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:

Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/3/2025
Index Date (NOAA-20) Time (NOAA-20) Lat,Lon (NOAA-20) SZA (NOAA-20 ) Date (LANDSAT-9) Time (LANDSAT-9) Lat,Lon (LANDSAT-9) SZA (LANDSAT-9 ) Distance(km) Time Diff (sec)
1 07/05/2025 07:09:58 70.00, 68.66 47.24 07/05/2025 07:10:30 70.00, 68.66 47.23 0.07 32
2 07/05/2025 08:00:39 -69.87,-123.83 132.90 07/05/2025 08:00:00 -69.89,-123.86 132.88 2.31 39
3 07/07/2025 22:36:18 -70.30, 16.65 132.17 07/07/2025 22:37:30 -70.22, 17.22 132.28 22.89 72
4 07/07/2025 23:26:58 69.95,-175.51 47.47 07/07/2025 23:27:00 69.95,-175.53 47.47 0.56 2
5 07/08/2025 00:17:39 -69.82, -8.00 132.67 07/08/2025 00:16:30 -69.84, -8.04 132.63 3.11 69
6 07/10/2025 14:53:14 -70.04, 132.80 132.12 07/10/2025 14:54:02 -70.05, 132.86 132.11 2.87 48
7 07/10/2025 15:43:58 69.90, -59.69 47.75 07/10/2025 15:43:30 69.89, -59.73 47.74 2.39 28
8 07/13/2025 06:19:43 70.71, 80.18 48.97 07/13/2025 06:20:51 70.63, 81.95 48.81 65.98 68
9 07/13/2025 07:10:13 -69.99,-111.38 131.79 07/13/2025 07:10:31 -69.98,-111.36 131.81 1.97 18
10 07/13/2025 08:00:57 69.86, 56.13 48.08 07/13/2025 07:59:58 69.86, 56.12 48.09 0.23 59
11 07/15/2025 22:36:31 70.04,-163.01 48.67 07/15/2025 22:37:30 70.04,-163.02 48.67 0.46 59
12 07/15/2025 23:27:13 -69.95, 4.43 131.41 07/15/2025 23:27:00 -69.94, 4.48 131.42 2.23 13
13 07/16/2025 00:17:46 69.24, 172.78 47.85 07/16/2025 00:16:37 69.27, 171.21 47.95 62.10 69

Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/3/2025
SNOs_Map_NOAA-20_LANDSAT-9_20250703.jpg

Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/03/2025 in txt file.

Historial Predications of SNOs between NOAA-20 and LANDSAT-9