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: 8/14/2025
| 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 | 08/16/2025 | 22:36:34 | 70.79,-164.12 | 57.39 | 08/16/2025 | 22:37:42 | 70.70,-162.10 | 57.22 | 74.75 | 68 |
| 2 | 08/16/2025 | 23:27:02 | -69.97, 4.50 | 123.47 | 08/16/2025 | 23:27:23 | -69.98, 4.49 | 123.46 | 0.89 | 21 |
| 3 | 08/17/2025 | 00:17:46 | 69.85, 171.99 | 56.42 | 08/17/2025 | 00:16:50 | 69.88, 171.99 | 56.45 | 2.99 | 56 |
| 4 | 08/19/2025 | 14:53:13 | 70.03, -47.12 | 57.44 | 08/19/2025 | 14:54:23 | 70.04, -47.19 | 57.44 | 2.67 | 70 |
| 5 | 08/19/2025 | 15:43:55 | -69.94, 120.33 | 122.64 | 08/19/2025 | 15:43:53 | -69.93, 120.29 | 122.65 | 1.99 | 2 |
| 6 | 08/19/2025 | 16:34:35 | 69.61, -71.87 | 57.03 | 08/19/2025 | 16:33:23 | 69.66, -72.44 | 57.10 | 22.48 | 72 |
| 7 | 08/22/2025 | 07:10:07 | 70.00, 68.69 | 58.30 | 08/22/2025 | 07:10:53 | 70.01, 68.66 | 58.31 | 1.75 | 46 |
| 8 | 08/22/2025 | 08:00:49 | -69.91,-123.85 | 121.79 | 08/22/2025 | 08:00:23 | -69.91,-123.85 | 121.79 | 0.25 | 26 |
| 9 | 08/24/2025 | 22:36:35 | -71.03, 15.52 | 119.73 | 08/24/2025 | 22:37:41 | -70.90, 18.22 | 119.94 | 98.96 | 66 |
| 10 | 08/24/2025 | 23:27:01 | 69.98,-175.50 | 59.19 | 08/24/2025 | 23:27:23 | 69.97,-175.51 | 59.18 | 1.01 | 22 |
| 11 | 08/25/2025 | 00:17:43 | -69.88, -8.03 | 120.91 | 08/25/2025 | 00:16:53 | -69.87, -8.02 | 120.91 | 1.38 | 50 |
| 12 | 08/27/2025 | 14:53:13 | -70.17, 132.68 | 119.70 | 08/27/2025 | 14:54:24 | -70.14, 132.96 | 119.75 | 11.17 | 71 |
| 13 | 08/27/2025 | 15:43:55 | 69.97, -59.70 | 60.10 | 08/27/2025 | 15:43:52 | 69.97, -59.63 | 60.10 | 2.50 | 3 |
| 14 | 08/27/2025 | 16:34:36 | -69.81, 107.86 | 120.05 | 08/27/2025 | 16:33:23 | -69.81, 107.78 | 120.04 | 2.92 | 73 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/14/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/14/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9