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: 7/9/2025
| 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 | 07/10/2025 | 14:53:13 | -70.02, 132.83 | 132.14 | 07/10/2025 | 14:54:02 | -70.01, 132.80 | 132.15 | 1.29 | 49 |
| 2 | 07/10/2025 | 15:43:58 | 69.93, -59.73 | 47.78 | 07/10/2025 | 15:43:29 | 69.91, -59.70 | 47.76 | 2.68 | 29 |
| 3 | 07/13/2025 | 06:19:44 | 70.73, 80.14 | 48.99 | 07/13/2025 | 06:20:52 | 70.59, 81.90 | 48.77 | 66.75 | 68 |
| 4 | 07/13/2025 | 07:10:13 | -69.97,-111.35 | 131.81 | 07/13/2025 | 07:10:31 | -69.99,-111.34 | 131.80 | 2.18 | 18 |
| 5 | 07/13/2025 | 08:00:58 | 69.88, 56.09 | 48.11 | 07/13/2025 | 07:59:58 | 69.88, 56.15 | 48.11 | 2.39 | 60 |
| 6 | 07/15/2025 | 22:36:32 | 70.06,-163.05 | 48.70 | 07/15/2025 | 22:37:30 | 70.06,-162.99 | 48.69 | 2.26 | 58 |
| 7 | 07/15/2025 | 23:27:13 | -69.93, 4.47 | 131.44 | 07/15/2025 | 23:27:00 | -69.96, 4.50 | 131.41 | 3.36 | 13 |
| 8 | 07/16/2025 | 00:17:46 | 69.21, 172.83 | 47.81 | 07/16/2025 | 00:16:37 | 69.29, 171.24 | 47.97 | 63.37 | 69 |
| 9 | 07/18/2025 | 14:53:31 | 70.02, -47.24 | 49.12 | 07/18/2025 | 14:53:58 | 70.01, -47.17 | 49.10 | 2.72 | 27 |
| 10 | 07/18/2025 | 15:44:12 | -69.89, 120.28 | 131.02 | 07/18/2025 | 15:43:28 | -69.91, 120.32 | 130.99 | 2.70 | 44 |
| 11 | 07/21/2025 | 06:19:48 | -70.17, -99.02 | 130.23 | 07/21/2025 | 06:20:59 | -70.12, -98.77 | 130.31 | 11.03 | 71 |
| 12 | 07/21/2025 | 07:10:30 | 69.93, 68.65 | 49.53 | 07/21/2025 | 07:10:27 | 69.94, 68.63 | 49.54 | 1.52 | 3 |
| 13 | 07/21/2025 | 08:01:11 | -69.80,-123.83 | 130.61 | 07/21/2025 | 07:59:58 | -69.79,-123.95 | 130.60 | 4.67 | 73 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/9/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/09/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9