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: 6/30/2025
| 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 | 07/02/2025 | 14:52:58 | 70.03, -47.14 | 47.03 | 07/02/2025 | 14:54:00 | 70.06, -47.13 | 47.05 | 3.64 | 62 |
| 2 | 07/02/2025 | 15:43:40 | -69.95, 120.30 | 133.05 | 07/02/2025 | 15:43:30 | -69.95, 120.34 | 133.05 | 1.58 | 10 |
| 3 | 07/02/2025 | 16:34:15 | 69.34, -71.49 | 46.31 | 07/02/2025 | 16:33:05 | 69.41, -72.76 | 46.44 | 50.30 | 70 |
| 4 | 07/05/2025 | 07:09:58 | 69.98, 68.70 | 47.21 | 07/05/2025 | 07:10:31 | 69.98, 68.63 | 47.21 | 2.70 | 33 |
| 5 | 07/05/2025 | 08:00:40 | -69.90,-123.86 | 132.87 | 07/05/2025 | 08:00:01 | -69.87,-123.89 | 132.89 | 2.65 | 39 |
| 6 | 07/07/2025 | 22:36:18 | -70.32, 16.61 | 132.15 | 07/07/2025 | 22:37:30 | -70.21, 17.20 | 132.29 | 25.07 | 72 |
| 7 | 07/07/2025 | 23:26:57 | 69.92,-175.47 | 47.44 | 07/07/2025 | 23:27:00 | 69.94,-175.55 | 47.45 | 3.21 | 3 |
| 8 | 07/08/2025 | 00:17:39 | -69.84, -8.03 | 132.64 | 07/08/2025 | 00:16:30 | -69.83, -8.06 | 132.64 | 1.32 | 69 |
| 9 | 07/10/2025 | 14:53:13 | -70.01, 132.84 | 132.15 | 07/10/2025 | 14:54:03 | -70.00, 132.78 | 132.17 | 2.79 | 50 |
| 10 | 07/10/2025 | 15:43:58 | 69.93, -59.73 | 47.78 | 07/10/2025 | 15:43:29 | 69.94, -59.66 | 47.78 | 2.70 | 29 |
| 11 | 07/10/2025 | 16:34:22 | -68.89, 109.07 | 133.31 | 07/10/2025 | 16:33:16 | -68.90, 106.59 | 133.19 | 99.67 | 66 |
| 12 | 07/13/2025 | 06:19:44 | 70.73, 80.13 | 48.99 | 07/13/2025 | 06:20:52 | 70.63, 81.96 | 48.81 | 68.00 | 68 |
| 13 | 07/13/2025 | 07:10:13 | -69.96,-111.34 | 131.82 | 07/13/2025 | 07:10:32 | -69.99,-111.35 | 131.80 | 2.66 | 19 |
| 14 | 07/13/2025 | 08:00:58 | 69.89, 56.09 | 48.11 | 07/13/2025 | 07:59:59 | 69.87, 56.13 | 48.10 | 2.59 | 59 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/30/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 06/30/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9