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: 7/17/2025
| 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 | 70.01, -47.14 | 49.10 | 07/18/2025 | 14:54:07 | 70.02, -47.19 | 49.11 | 2.60 | 52 |
| 2 | 07/18/2025 | 15:43:56 | -69.94, 120.28 | 130.97 | 07/18/2025 | 15:43:36 | -69.92, 120.29 | 130.99 | 2.53 | 20 |
| 3 | 07/18/2025 | 16:34:24 | 68.95, -70.99 | 48.01 | 07/18/2025 | 16:33:18 | 68.98, -73.31 | 48.14 | 92.93 | 66 |
| 4 | 07/21/2025 | 07:10:09 | 69.97, 68.68 | 49.57 | 07/21/2025 | 07:10:37 | 70.00, 68.66 | 49.59 | 3.01 | 28 |
| 5 | 07/21/2025 | 08:00:51 | -69.90,-123.89 | 130.50 | 07/21/2025 | 08:00:07 | -69.90,-123.85 | 130.50 | 1.70 | 44 |
| 6 | 07/23/2025 | 22:36:26 | -70.39, 16.50 | 129.45 | 07/23/2025 | 22:37:37 | -70.29, 17.31 | 129.60 | 32.49 | 71 |
| 7 | 07/23/2025 | 23:27:04 | 69.95,-175.51 | 50.09 | 07/23/2025 | 23:27:08 | 69.96,-175.52 | 50.10 | 1.79 | 4 |
| 8 | 07/24/2025 | 00:17:46 | -69.87, -8.08 | 129.99 | 07/24/2025 | 00:16:38 | -69.86, -8.02 | 129.99 | 2.29 | 68 |
| 9 | 07/26/2025 | 14:53:15 | -70.05, 132.80 | 129.23 | 07/26/2025 | 14:54:12 | -70.02, 132.81 | 129.27 | 2.85 | 57 |
| 10 | 07/26/2025 | 15:43:59 | 69.92, -59.70 | 50.64 | 07/26/2025 | 15:43:39 | 69.91, -59.71 | 50.63 | 1.60 | 20 |
| 11 | 07/26/2025 | 16:34:28 | -69.16, 108.73 | 130.16 | 07/26/2025 | 16:33:19 | -69.26, 107.04 | 129.97 | 67.70 | 69 |
| 12 | 07/29/2025 | 07:10:10 | -70.03,-111.39 | 128.64 | 07/29/2025 | 07:10:42 | -70.02,-111.32 | 128.66 | 2.87 | 32 |
| 13 | 07/29/2025 | 08:00:53 | 69.90, 56.11 | 51.24 | 07/29/2025 | 08:00:08 | 69.90, 56.15 | 51.24 | 2.03 | 45 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/17/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/17/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9