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: 5/20/2025
| 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 | 05/20/2025 | 23:26:03 | 70.07,-175.53 | 49.81 | 05/20/2025 | 23:26:46 | 70.05,-175.51 | 49.78 | 2.80 | 43 |
| 2 | 05/21/2025 | 00:16:44 | -69.91, -7.97 | 130.36 | 05/21/2025 | 00:16:16 | -69.93, -8.05 | 130.34 | 3.64 | 28 |
| 3 | 05/23/2025 | 14:52:27 | -70.81, 131.76 | 129.94 | 05/23/2025 | 14:53:35 | -70.74, 133.73 | 130.06 | 72.26 | 68 |
| 4 | 05/23/2025 | 15:42:58 | 70.03, -59.69 | 49.25 | 05/23/2025 | 15:43:13 | 70.03, -59.66 | 49.25 | 1.55 | 15 |
| 5 | 05/23/2025 | 16:33:40 | -69.92, 107.79 | 130.88 | 05/23/2025 | 16:32:43 | -69.92, 107.82 | 130.87 | 0.89 | 57 |
| 6 | 05/26/2025 | 07:09:10 | -70.08,-111.32 | 131.17 | 05/26/2025 | 07:10:14 | -70.10,-111.32 | 131.16 | 2.25 | 64 |
| 7 | 05/26/2025 | 07:59:54 | 69.99, 56.13 | 48.73 | 05/26/2025 | 07:59:41 | 70.00, 56.17 | 48.73 | 1.69 | 13 |
| 8 | 05/26/2025 | 08:50:28 | -69.45,-135.75 | 131.84 | 05/26/2025 | 08:49:17 | -69.55,-136.80 | 131.70 | 42.41 | 71 |
| 9 | 05/28/2025 | 23:26:06 | -70.05, 4.51 | 131.65 | 05/28/2025 | 23:26:42 | -70.05, 4.48 | 131.65 | 1.10 | 36 |
| 10 | 05/29/2025 | 00:16:50 | 69.96, 171.95 | 48.26 | 05/29/2025 | 00:16:09 | 69.94, 171.97 | 48.24 | 1.94 | 41 |
| 11 | 05/31/2025 | 14:52:25 | 70.40, -47.59 | 48.34 | 05/31/2025 | 14:53:36 | 70.30, -46.91 | 48.21 | 27.62 | 71 |
| 12 | 05/31/2025 | 15:43:02 | -70.01, 120.32 | 132.07 | 05/31/2025 | 15:43:09 | -70.03, 120.33 | 132.06 | 1.24 | 7 |
| 13 | 05/31/2025 | 16:33:46 | 69.93, -72.23 | 47.84 | 05/31/2025 | 16:32:36 | 69.91, -72.18 | 47.83 | 2.50 | 70 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/20/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 05/20/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9