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: 6/19/2025
| 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 | 06/19/2025 | 07:09:23 | 70.07, 68.68 | 46.60 | 06/19/2025 | 07:10:23 | 70.05, 68.72 | 46.58 | 2.29 | 60 |
| 2 | 06/19/2025 | 08:00:04 | -69.93,-123.78 | 133.55 | 06/19/2025 | 07:59:53 | -69.94,-123.80 | 133.54 | 1.61 | 11 |
| 3 | 06/19/2025 | 08:50:38 | 69.27, 44.48 | 45.77 | 06/19/2025 | 08:49:29 | 69.34, 43.03 | 45.90 | 57.89 | 69 |
| 4 | 06/21/2025 | 23:26:23 | 69.99,-175.45 | 46.52 | 06/21/2025 | 23:26:55 | 69.98,-175.50 | 46.50 | 2.39 | 32 |
| 5 | 06/22/2025 | 00:17:05 | -69.90, -8.00 | 133.58 | 06/22/2025 | 00:16:24 | -69.92, -7.95 | 133.55 | 3.10 | 41 |
| 6 | 06/24/2025 | 14:52:44 | -70.31, 132.51 | 133.11 | 06/24/2025 | 14:53:56 | -70.22, 133.07 | 133.23 | 23.47 | 72 |
| 7 | 06/24/2025 | 15:43:24 | 69.97, -59.67 | 46.54 | 06/24/2025 | 15:43:26 | 69.95, -59.67 | 46.52 | 2.99 | 2 |
| 8 | 06/24/2025 | 16:34:05 | -69.83, 107.86 | 133.61 | 06/24/2025 | 16:32:56 | -69.84, 107.81 | 133.59 | 2.06 | 69 |
| 9 | 06/27/2025 | 07:09:40 | -70.03,-111.31 | 133.31 | 06/27/2025 | 07:10:30 | -70.01,-111.35 | 133.34 | 2.66 | 50 |
| 10 | 06/27/2025 | 08:00:24 | 69.90, 56.18 | 46.57 | 06/27/2025 | 07:59:57 | 69.89, 56.14 | 46.56 | 1.85 | 27 |
| 11 | 06/27/2025 | 08:50:49 | -68.91,-135.08 | 134.47 | 06/27/2025 | 08:49:42 | -68.97,-137.47 | 134.32 | 95.82 | 67 |
| 12 | 06/29/2025 | 22:36:11 | 70.79,-164.09 | 47.64 | 06/29/2025 | 22:37:19 | 70.65,-162.17 | 47.42 | 72.22 | 68 |
| 13 | 06/29/2025 | 23:26:40 | -70.01, 4.46 | 133.18 | 06/29/2025 | 23:26:59 | -70.00, 4.52 | 133.20 | 2.74 | 19 |
| 14 | 06/30/2025 | 00:17:24 | 69.89, 171.95 | 46.69 | 06/30/2025 | 00:16:26 | 69.88, 172.01 | 46.69 | 2.01 | 58 |
| 15 | 07/02/2025 | 14:52:58 | 70.04, -47.15 | 47.04 | 07/02/2025 | 14:54:00 | 70.01, -47.20 | 47.01 | 3.32 | 62 |
| 16 | 07/02/2025 | 15:43:40 | -69.95, 120.31 | 133.06 | 07/02/2025 | 15:43:30 | -69.92, 120.29 | 133.09 | 3.23 | 10 |
| 17 | 07/02/2025 | 16:34:15 | 69.34, -71.50 | 46.32 | 07/02/2025 | 16:33:05 | 69.36, -72.83 | 46.39 | 51.97 | 70 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/19/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 06/19/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9