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: 7/21/2025
| 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 | 07/21/2025 | 07:10:09 | 69.98, 68.66 | 49.58 | 07/21/2025 | 07:10:37 | 69.99, 68.64 | 49.58 | 0.95 | 28 |
| 2 | 07/21/2025 | 08:00:50 | -69.87,-123.84 | 130.54 | 07/21/2025 | 08:00:07 | -69.88,-123.88 | 130.52 | 2.03 | 43 |
| 3 | 07/23/2025 | 22:36:26 | -70.41, 16.47 | 129.44 | 07/23/2025 | 22:37:37 | -70.27, 17.28 | 129.62 | 33.89 | 71 |
| 4 | 07/23/2025 | 23:27:04 | 69.96,-175.52 | 50.10 | 07/23/2025 | 23:27:08 | 69.95,-175.54 | 50.08 | 1.44 | 4 |
| 5 | 07/24/2025 | 00:17:45 | -69.83, -8.02 | 130.03 | 07/24/2025 | 00:16:38 | -69.84, -8.05 | 130.01 | 1.44 | 67 |
| 6 | 07/26/2025 | 14:53:15 | -70.07, 132.78 | 129.22 | 07/26/2025 | 14:54:11 | -70.06, 132.85 | 129.24 | 3.02 | 56 |
| 7 | 07/26/2025 | 15:43:59 | 69.93, -59.71 | 50.65 | 07/26/2025 | 15:43:38 | 69.95, -59.66 | 50.67 | 2.50 | 21 |
| 8 | 07/26/2025 | 16:34:28 | -69.17, 108.71 | 130.14 | 07/26/2025 | 16:33:19 | -69.24, 107.02 | 130.00 | 67.46 | 69 |
| 9 | 07/29/2025 | 07:10:09 | -69.99,-111.33 | 128.68 | 07/29/2025 | 07:10:42 | -69.99,-111.36 | 128.68 | 0.98 | 33 |
| 10 | 07/29/2025 | 08:00:53 | 69.86, 56.17 | 51.20 | 07/29/2025 | 08:00:09 | 69.88, 56.13 | 51.22 | 2.36 | 44 |
| 11 | 07/31/2025 | 22:36:28 | 70.37,-163.46 | 52.37 | 07/31/2025 | 22:37:39 | 70.23,-162.77 | 52.19 | 30.36 | 71 |
| 12 | 07/31/2025 | 23:27:03 | -69.97, 4.47 | 128.04 | 07/31/2025 | 23:27:11 | -69.96, 4.49 | 128.05 | 0.88 | 8 |
| 13 | 08/01/2025 | 00:17:47 | 69.85, 171.97 | 51.84 | 08/01/2025 | 00:16:38 | 69.85, 171.97 | 51.85 | 0.17 | 69 |
| 14 | 08/03/2025 | 14:53:16 | 70.04, -47.18 | 52.71 | 08/03/2025 | 14:54:11 | 70.02, -47.18 | 52.68 | 2.45 | 55 |
| 15 | 08/03/2025 | 15:43:57 | -69.90, 120.35 | 127.43 | 08/03/2025 | 15:43:41 | -69.92, 120.32 | 127.40 | 2.73 | 16 |
| 16 | 08/03/2025 | 16:34:28 | 69.09, -71.17 | 51.74 | 08/03/2025 | 16:33:20 | 69.14, -73.10 | 51.87 | 76.65 | 68 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/21/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/21/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9