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: 9/9/2025
| 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 | 09/09/2025 | 23:26:54 | 70.00,-175.47 | 64.99 | 09/09/2025 | 23:27:29 | 70.00,-175.49 | 64.99 | 0.98 | 35 |
| 2 | 09/10/2025 | 00:17:36 | -69.90, -8.00 | 115.10 | 09/10/2025 | 00:16:59 | -69.88, -8.02 | 115.12 | 2.15 | 37 |
| 3 | 09/12/2025 | 14:53:14 | -70.65, 131.98 | 113.34 | 09/12/2025 | 14:54:23 | -70.56, 133.55 | 113.47 | 58.86 | 69 |
| 4 | 09/12/2025 | 15:43:47 | 69.97, -59.65 | 65.98 | 09/12/2025 | 15:43:59 | 69.96, -59.66 | 65.97 | 1.30 | 12 |
| 5 | 09/12/2025 | 16:34:28 | -69.87, 107.83 | 114.12 | 09/12/2025 | 16:33:28 | -69.85, 107.81 | 114.13 | 2.20 | 60 |
| 6 | 09/15/2025 | 07:09:55 | -70.05,-111.28 | 112.94 | 09/15/2025 | 07:11:00 | -70.07,-111.28 | 112.92 | 2.42 | 65 |
| 7 | 09/15/2025 | 08:00:39 | 69.95, 56.17 | 66.98 | 09/15/2025 | 08:00:27 | 69.96, 56.22 | 66.99 | 2.32 | 12 |
| 8 | 09/15/2025 | 08:51:14 | -69.47,-135.81 | 113.50 | 09/15/2025 | 08:50:03 | -69.52,-136.75 | 113.43 | 37.18 | 71 |
| 9 | 09/17/2025 | 23:26:48 | -70.02, 4.53 | 111.93 | 09/17/2025 | 23:27:30 | -70.00, 4.51 | 111.96 | 3.34 | 42 |
| 10 | 09/18/2025 | 00:17:31 | 69.88, 172.06 | 67.94 | 09/18/2025 | 00:16:57 | 69.89, 172.00 | 67.95 | 2.30 | 34 |
| 11 | 09/20/2025 | 14:53:11 | 70.76, -48.16 | 69.85 | 09/20/2025 | 14:54:19 | 70.61, -46.34 | 69.68 | 68.85 | 68 |
| 12 | 09/20/2025 | 15:43:40 | -69.96, 120.42 | 110.96 | 09/20/2025 | 15:43:59 | -69.96, 120.34 | 110.96 | 2.86 | 19 |
| 13 | 09/20/2025 | 16:34:24 | 69.87, -72.14 | 68.96 | 09/20/2025 | 16:33:26 | 69.85, -72.17 | 68.94 | 2.60 | 58 |
| 14 | 09/23/2025 | 07:09:51 | 70.06, 68.72 | 70.18 | 09/23/2025 | 07:10:57 | 70.06, 68.74 | 70.17 | 0.85 | 66 |
| 15 | 09/23/2025 | 08:00:33 | -69.95,-123.78 | 109.94 | 09/23/2025 | 08:00:27 | -69.96,-123.77 | 109.93 | 1.39 | 6 |
| 16 | 09/23/2025 | 08:51:09 | 69.49, 44.20 | 69.62 | 09/23/2025 | 08:49:58 | 69.57, 43.34 | 69.71 | 34.78 | 71 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/9/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/09/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9