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: 8/17/2025
| 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 | 08/19/2025 | 14:53:14 | 70.05, -47.15 | 57.46 | 08/19/2025 | 14:54:23 | 70.07, -47.14 | 57.48 | 3.27 | 69 |
| 2 | 08/19/2025 | 15:43:56 | -69.96, 120.30 | 122.62 | 08/19/2025 | 15:43:53 | -69.96, 120.34 | 122.62 | 1.58 | 3 |
| 3 | 08/19/2025 | 16:34:36 | 69.63, -71.90 | 57.05 | 08/19/2025 | 16:33:23 | 69.69, -72.39 | 57.14 | 20.22 | 73 |
| 4 | 08/22/2025 | 07:10:08 | 70.02, 68.67 | 58.32 | 08/22/2025 | 07:10:54 | 70.00, 68.65 | 58.30 | 1.97 | 46 |
| 5 | 08/22/2025 | 08:00:49 | -69.88,-123.80 | 121.82 | 08/22/2025 | 08:00:24 | -69.89,-123.87 | 121.80 | 3.60 | 25 |
| 6 | 08/24/2025 | 23:27:01 | 70.00,-175.52 | 59.21 | 08/24/2025 | 23:27:23 | 69.97,-175.52 | 59.18 | 3.05 | 22 |
| 7 | 08/25/2025 | 00:17:42 | -69.85, -7.98 | 120.94 | 08/25/2025 | 00:16:53 | -69.86, -8.03 | 120.92 | 2.69 | 49 |
| 8 | 08/27/2025 | 14:53:13 | -70.19, 132.65 | 119.68 | 08/27/2025 | 14:54:24 | -70.14, 132.96 | 119.75 | 12.79 | 71 |
| 9 | 08/27/2025 | 15:43:54 | 69.93, -59.64 | 60.06 | 08/27/2025 | 15:43:53 | 69.92, -59.70 | 60.06 | 2.45 | 1 |
| 10 | 08/27/2025 | 16:34:36 | -69.83, 107.83 | 120.04 | 08/27/2025 | 16:33:23 | -69.82, 107.79 | 120.04 | 1.95 | 73 |
| 11 | 08/30/2025 | 07:10:04 | -70.01,-111.30 | 118.92 | 08/30/2025 | 07:10:55 | -70.03,-111.32 | 118.91 | 1.53 | 51 |
| 12 | 08/30/2025 | 08:00:48 | 69.92, 56.16 | 61.00 | 08/30/2025 | 08:00:22 | 69.91, 56.17 | 60.99 | 0.69 | 26 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/17/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/17/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9