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: 7/16/2025
| 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 | 07/18/2025 | 14:53:15 | 70.02, -47.16 | 49.12 | 07/18/2025 | 14:54:07 | 70.01, -47.20 | 49.10 | 1.81 | 52 |
| 2 | 07/18/2025 | 15:43:56 | -69.90, 120.34 | 131.01 | 07/18/2025 | 15:43:37 | -69.91, 120.28 | 131.00 | 2.60 | 19 |
| 3 | 07/18/2025 | 16:34:25 | 68.96, -71.01 | 48.02 | 07/18/2025 | 16:33:18 | 69.02, -73.26 | 48.19 | 90.09 | 67 |
| 4 | 07/21/2025 | 07:10:09 | 69.99, 68.66 | 49.59 | 07/21/2025 | 07:10:37 | 69.99, 68.65 | 49.58 | 0.85 | 28 |
| 5 | 07/21/2025 | 08:00:51 | -69.91,-123.91 | 130.49 | 07/21/2025 | 08:00:07 | -69.89,-123.87 | 130.51 | 3.27 | 44 |
| 6 | 07/23/2025 | 22:36:26 | -70.40, 16.48 | 129.44 | 07/23/2025 | 22:37:37 | -70.29, 17.31 | 129.60 | 33.39 | 71 |
| 7 | 07/23/2025 | 23:27:04 | 69.96,-175.52 | 50.10 | 07/23/2025 | 23:27:08 | 69.96,-175.52 | 50.10 | 0.07 | 4 |
| 8 | 07/24/2025 | 00:17:45 | -69.83, -8.01 | 130.03 | 07/24/2025 | 00:16:38 | -69.86, -8.03 | 129.99 | 3.25 | 67 |
| 9 | 07/26/2025 | 14:53:14 | -70.01, 132.87 | 129.28 | 07/26/2025 | 14:54:12 | -70.03, 132.81 | 129.27 | 3.04 | 58 |
| 10 | 07/26/2025 | 15:43:59 | 69.93, -59.71 | 50.65 | 07/26/2025 | 15:43:39 | 69.91, -59.71 | 50.63 | 2.70 | 20 |
| 11 | 07/26/2025 | 16:34:28 | -69.17, 108.72 | 130.15 | 07/26/2025 | 16:33:19 | -69.26, 107.05 | 129.97 | 66.97 | 69 |
| 12 | 07/29/2025 | 07:10:09 | -69.98,-111.32 | 128.68 | 07/29/2025 | 07:10:43 | -69.97,-111.39 | 128.71 | 3.13 | 34 |
| 13 | 07/29/2025 | 08:00:54 | 69.91, 56.09 | 51.25 | 07/29/2025 | 08:00:09 | 69.90, 56.16 | 51.24 | 3.01 | 45 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/16/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/16/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9