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: 4/11/2025
| 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 | 04/13/2025 | 15:42:24 | -70.31, 119.99 | 119.03 | 04/13/2025 | 15:43:35 | -70.20, 120.58 | 119.16 | 25.08 | 71 |
| 2 | 04/13/2025 | 16:33:03 | 69.92, -72.10 | 60.56 | 04/13/2025 | 16:33:05 | 69.93, -72.16 | 60.57 | 2.76 | 2 |
| 3 | 04/13/2025 | 17:23:45 | -69.84, 95.35 | 119.54 | 04/13/2025 | 17:22:35 | -69.82, 95.32 | 119.56 | 2.21 | 70 |
| 4 | 04/16/2025 | 07:59:18 | -70.05,-123.83 | 120.27 | 04/16/2025 | 08:00:06 | -70.04,-123.78 | 120.28 | 2.20 | 48 |
| 5 | 04/16/2025 | 08:50:02 | 69.92, 43.66 | 59.60 | 04/16/2025 | 08:49:33 | 69.93, 43.71 | 59.61 | 2.26 | 29 |
| 6 | 04/18/2025 | 23:25:45 | 70.73,-176.47 | 59.52 | 04/18/2025 | 23:26:53 | 70.65,-174.64 | 59.39 | 67.72 | 68 |
| 7 | 04/19/2025 | 00:16:15 | -70.00, -8.00 | 121.26 | 04/19/2025 | 00:16:33 | -70.00, -7.96 | 121.26 | 1.79 | 18 |
| 8 | 04/19/2025 | 01:06:59 | 69.88, 159.48 | 58.61 | 04/19/2025 | 01:06:00 | 69.88, 159.53 | 58.62 | 1.84 | 59 |
| 9 | 04/21/2025 | 15:42:31 | 70.07, -59.66 | 57.91 | 04/21/2025 | 15:43:30 | 70.06, -59.62 | 57.90 | 1.93 | 59 |
| 10 | 04/21/2025 | 16:33:13 | -69.97, 107.81 | 122.21 | 04/21/2025 | 16:33:00 | -69.96, 107.87 | 122.22 | 2.72 | 13 |
| 11 | 04/21/2025 | 17:23:46 | 69.27, -83.87 | 57.06 | 04/21/2025 | 17:22:36 | 69.34, -85.32 | 57.18 | 57.51 | 70 |
| 12 | 04/24/2025 | 07:59:28 | 70.00, 56.20 | 56.95 | 04/24/2025 | 07:59:56 | 70.02, 56.22 | 56.97 | 3.05 | 28 |
| 13 | 04/24/2025 | 08:50:10 | -69.89,-136.32 | 123.18 | 04/24/2025 | 08:49:27 | -69.87,-136.36 | 123.20 | 3.23 | 43 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/11/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/11/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9