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: 8/13/2025
| 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 | 08/14/2025 | 07:10:08 | -70.01,-111.33 | 124.27 | 08/14/2025 | 07:10:52 | -70.03,-111.33 | 124.26 | 1.97 | 44 |
| 2 | 08/14/2025 | 08:00:52 | 69.88, 56.17 | 55.61 | 08/14/2025 | 08:00:20 | 69.87, 56.10 | 55.61 | 3.03 | 32 |
| 3 | 08/16/2025 | 22:36:35 | 70.84,-164.19 | 57.44 | 08/16/2025 | 22:37:42 | 70.71,-162.09 | 57.23 | 78.52 | 67 |
| 4 | 08/16/2025 | 23:27:02 | -69.97, 4.51 | 123.47 | 08/16/2025 | 23:27:23 | -69.99, 4.50 | 123.45 | 2.85 | 21 |
| 5 | 08/17/2025 | 00:17:46 | 69.90, 171.92 | 56.47 | 08/17/2025 | 00:16:49 | 69.89, 172.00 | 56.46 | 3.20 | 57 |
| 6 | 08/19/2025 | 14:53:14 | 70.07, -47.19 | 57.49 | 08/19/2025 | 14:54:23 | 70.05, -47.17 | 57.46 | 2.73 | 69 |
| 7 | 08/19/2025 | 15:43:55 | -69.93, 120.34 | 122.65 | 08/19/2025 | 15:43:53 | -69.94, 120.31 | 122.64 | 1.83 | 2 |
| 8 | 08/19/2025 | 16:34:35 | 69.60, -71.86 | 57.02 | 08/19/2025 | 16:33:23 | 69.67, -72.42 | 57.11 | 23.02 | 72 |
| 9 | 08/22/2025 | 07:10:08 | 70.04, 68.63 | 58.35 | 08/22/2025 | 07:10:53 | 70.03, 68.68 | 58.32 | 2.59 | 45 |
| 10 | 08/22/2025 | 08:00:49 | -69.90,-123.83 | 121.80 | 08/22/2025 | 08:00:23 | -69.92,-123.83 | 121.77 | 3.17 | 26 |
| 11 | 08/24/2025 | 22:36:35 | -71.01, 15.54 | 119.74 | 08/24/2025 | 22:37:41 | -70.92, 18.25 | 119.92 | 98.64 | 66 |
| 12 | 08/24/2025 | 23:27:01 | 69.97,-175.48 | 59.18 | 08/24/2025 | 23:27:23 | 69.99,-175.48 | 59.20 | 2.92 | 22 |
| 13 | 08/25/2025 | 00:17:43 | -69.87, -8.01 | 120.92 | 08/25/2025 | 00:16:53 | -69.89, -8.00 | 120.90 | 2.67 | 50 |
| 14 | 08/27/2025 | 14:53:13 | -70.15, 132.71 | 119.72 | 08/27/2025 | 14:54:25 | -70.11, 132.92 | 119.78 | 9.19 | 72 |
| 15 | 08/27/2025 | 15:43:55 | 69.95, -59.67 | 60.08 | 08/27/2025 | 15:43:53 | 69.94, -59.68 | 60.07 | 0.98 | 2 |
| 16 | 08/27/2025 | 16:34:35 | -69.79, 107.88 | 120.07 | 08/27/2025 | 16:33:23 | -69.78, 107.74 | 120.07 | 5.63 | 72 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/13/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/13/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9