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: 7/15/2025
| 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 | 70.16,-163.16 | 48.81 | 07/15/2025 | 22:37:34 | 70.12,-162.92 | 48.75 | 10.03 | 72 |
| 2 | 07/15/2025 | 23:27:01 | -69.94, 4.51 | 131.43 | 07/15/2025 | 23:27:05 | -69.96, 4.48 | 131.41 | 2.68 | 4 |
| 3 | 07/16/2025 | 00:17:45 | 69.80, 172.02 | 48.44 | 07/16/2025 | 00:16:33 | 69.80, 171.90 | 48.45 | 4.59 | 72 |
| 4 | 07/18/2025 | 14:53:15 | 70.02, -47.17 | 49.12 | 07/18/2025 | 14:54:07 | 70.01, -47.21 | 49.10 | 2.46 | 52 |
| 5 | 07/18/2025 | 15:43:56 | -69.90, 120.34 | 131.01 | 07/18/2025 | 15:43:37 | -69.90, 120.28 | 131.00 | 2.40 | 19 |
| 6 | 07/18/2025 | 16:34:25 | 68.96, -71.01 | 48.02 | 07/18/2025 | 16:33:18 | 69.02, -73.26 | 48.18 | 90.01 | 67 |
| 7 | 07/21/2025 | 07:10:10 | 69.99, 68.65 | 49.59 | 07/21/2025 | 07:10:38 | 69.98, 68.64 | 49.58 | 1.05 | 28 |
| 8 | 07/21/2025 | 08:00:51 | -69.86,-123.84 | 130.54 | 07/21/2025 | 08:00:08 | -69.88,-123.87 | 130.51 | 2.39 | 43 |
| 9 | 07/23/2025 | 22:36:26 | -70.41, 16.47 | 129.44 | 07/23/2025 | 22:37:37 | -70.28, 17.30 | 129.61 | 33.94 | 71 |
| 10 | 07/23/2025 | 23:27:04 | 69.96,-175.53 | 50.11 | 07/23/2025 | 23:27:08 | 69.95,-175.54 | 50.09 | 1.95 | 4 |
| 11 | 07/24/2025 | 00:17:45 | -69.83, -8.02 | 130.03 | 07/24/2025 | 00:16:38 | -69.85, -8.04 | 130.00 | 1.76 | 67 |
| 12 | 07/26/2025 | 14:53:14 | -70.01, 132.86 | 129.27 | 07/26/2025 | 14:54:12 | -70.01, 132.79 | 129.28 | 2.38 | 58 |
| 13 | 07/26/2025 | 15:43:59 | 69.94, -59.73 | 50.66 | 07/26/2025 | 15:43:38 | 69.95, -59.65 | 50.67 | 3.04 | 21 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/15/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/15/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9