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: 7/14/2025
| 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 | 07/15/2025 | 22:36:22 | 70.17,-163.17 | 48.82 | 07/15/2025 | 22:37:34 | 70.11,-162.93 | 48.74 | 11.12 | 72 |
| 2 | 07/15/2025 | 23:27:01 | -69.95, 4.49 | 131.42 | 07/15/2025 | 23:27:05 | -69.95, 4.47 | 131.41 | 1.22 | 4 |
| 3 | 07/16/2025 | 00:17:45 | 69.81, 172.01 | 48.45 | 07/16/2025 | 00:16:32 | 69.85, 171.97 | 48.50 | 4.61 | 73 |
| 4 | 07/18/2025 | 14:53:15 | 70.03, -47.18 | 49.13 | 07/18/2025 | 14:54:06 | 70.05, -47.15 | 49.14 | 2.63 | 51 |
| 5 | 07/18/2025 | 15:43:56 | -69.91, 120.33 | 131.00 | 07/18/2025 | 15:43:37 | -69.89, 120.26 | 131.01 | 2.79 | 19 |
| 6 | 07/18/2025 | 16:34:25 | 68.97, -71.02 | 48.03 | 07/18/2025 | 16:33:18 | 69.01, -73.28 | 48.17 | 89.90 | 67 |
| 7 | 07/21/2025 | 07:10:10 | 70.00, 68.64 | 49.60 | 07/21/2025 | 07:10:38 | 69.97, 68.62 | 49.57 | 2.91 | 28 |
| 8 | 07/21/2025 | 08:00:51 | -69.87,-123.85 | 130.53 | 07/21/2025 | 08:00:08 | -69.87,-123.89 | 130.52 | 1.43 | 43 |
| 9 | 07/23/2025 | 22:36:26 | -70.41, 16.46 | 129.43 | 07/23/2025 | 22:37:37 | -70.27, 17.28 | 129.62 | 34.51 | 71 |
| 10 | 07/23/2025 | 23:27:04 | 69.97,-175.54 | 50.11 | 07/23/2025 | 23:27:07 | 69.99,-175.47 | 50.13 | 3.44 | 3 |
| 11 | 07/24/2025 | 00:17:45 | -69.84, -8.03 | 130.02 | 07/24/2025 | 00:16:38 | -69.84, -8.05 | 130.01 | 0.97 | 67 |
| 12 | 07/26/2025 | 14:53:14 | -70.02, 132.85 | 129.27 | 07/26/2025 | 14:54:12 | -70.00, 132.78 | 129.29 | 3.23 | 58 |
| 13 | 07/26/2025 | 15:43:59 | 69.95, -59.73 | 50.67 | 07/26/2025 | 15:43:38 | 69.94, -59.67 | 50.66 | 2.72 | 21 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/14/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/14/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9