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: 7/8/2025
| 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, 132.84 | 132.14 | 07/10/2025 | 14:54:02 | -70.02, 132.81 | 132.15 | 1.06 | 49 |
| 2 | 07/10/2025 | 15:43:58 | 69.93, -59.72 | 47.78 | 07/10/2025 | 15:43:29 | 69.91, -59.70 | 47.76 | 2.17 | 29 |
| 3 | 07/13/2025 | 06:19:44 | 70.73, 80.14 | 48.99 | 07/13/2025 | 06:20:52 | 70.59, 81.90 | 48.78 | 66.53 | 68 |
| 4 | 07/13/2025 | 07:10:13 | -69.97,-111.34 | 131.81 | 07/13/2025 | 07:10:31 | -69.99,-111.34 | 131.79 | 2.96 | 18 |
| 5 | 07/13/2025 | 08:00:58 | 69.88, 56.09 | 48.10 | 07/13/2025 | 07:59:58 | 69.88, 56.15 | 48.11 | 2.30 | 60 |
| 6 | 07/15/2025 | 22:36:32 | 70.05,-163.04 | 48.69 | 07/15/2025 | 22:37:30 | 70.06,-162.99 | 48.69 | 2.14 | 58 |
| 7 | 07/15/2025 | 23:27:13 | -69.92, 4.48 | 131.44 | 07/15/2025 | 23:27:01 | -69.90, 4.42 | 131.46 | 3.01 | 12 |
| 8 | 07/16/2025 | 00:17:46 | 69.20, 172.83 | 47.81 | 07/16/2025 | 00:16:37 | 69.29, 171.24 | 47.97 | 63.70 | 69 |
| 9 | 07/18/2025 | 14:53:31 | 70.01, -47.23 | 49.11 | 07/18/2025 | 14:53:58 | 70.01, -47.18 | 49.10 | 2.15 | 27 |
| 10 | 07/18/2025 | 15:44:12 | -69.88, 120.29 | 131.02 | 07/18/2025 | 15:43:28 | -69.91, 120.32 | 131.00 | 2.99 | 44 |
| 11 | 07/21/2025 | 06:19:48 | -70.16, -99.01 | 130.24 | 07/21/2025 | 06:20:59 | -70.11, -98.78 | 130.31 | 10.17 | 71 |
| 12 | 07/21/2025 | 07:10:30 | 69.92, 68.66 | 49.52 | 07/21/2025 | 07:10:27 | 69.94, 68.62 | 49.53 | 2.15 | 3 |
| 13 | 07/21/2025 | 08:01:11 | -69.79,-123.82 | 130.62 | 07/21/2025 | 07:59:58 | -69.79,-123.96 | 130.61 | 5.39 | 73 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/8/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/08/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9