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: 5/21/2025
| 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 | 05/23/2025 | 14:52:28 | -70.82, 131.74 | 129.93 | 05/23/2025 | 14:53:36 | -70.72, 133.71 | 130.08 | 72.69 | 68 |
| 2 | 05/23/2025 | 15:42:59 | 70.04, -59.71 | 49.26 | 05/23/2025 | 15:43:14 | 70.02, -59.67 | 49.24 | 2.46 | 15 |
| 3 | 05/23/2025 | 16:33:41 | -69.93, 107.77 | 130.87 | 05/23/2025 | 16:32:44 | -69.91, 107.80 | 130.89 | 2.71 | 57 |
| 4 | 05/26/2025 | 07:09:10 | -70.09,-111.33 | 131.16 | 05/26/2025 | 07:10:14 | -70.09,-111.34 | 131.17 | 0.20 | 64 |
| 5 | 05/26/2025 | 07:59:54 | 70.00, 56.12 | 48.74 | 05/26/2025 | 07:59:41 | 69.99, 56.16 | 48.73 | 2.07 | 13 |
| 6 | 05/26/2025 | 08:50:28 | -69.46,-135.77 | 131.82 | 05/26/2025 | 08:49:17 | -69.55,-136.82 | 131.71 | 41.66 | 71 |
| 7 | 05/28/2025 | 23:26:06 | -70.06, 4.49 | 131.63 | 05/28/2025 | 23:26:42 | -70.04, 4.47 | 131.65 | 1.84 | 36 |
| 8 | 05/29/2025 | 00:16:49 | 69.91, 172.02 | 48.21 | 05/29/2025 | 00:16:09 | 69.93, 171.97 | 48.24 | 3.20 | 40 |
| 9 | 05/31/2025 | 14:52:25 | 70.41, -47.60 | 48.35 | 05/31/2025 | 14:53:36 | 70.30, -46.91 | 48.21 | 28.43 | 71 |
| 10 | 05/31/2025 | 15:43:02 | -70.02, 120.31 | 132.06 | 05/31/2025 | 15:43:09 | -70.02, 120.33 | 132.06 | 0.81 | 7 |
| 11 | 05/31/2025 | 16:33:46 | 69.94, -72.25 | 47.85 | 05/31/2025 | 16:32:36 | 69.91, -72.18 | 47.83 | 3.43 | 70 |
| 12 | 06/03/2025 | 07:09:15 | 70.06, 68.70 | 47.65 | 06/03/2025 | 07:10:06 | 70.09, 68.68 | 47.67 | 3.38 | 51 |
| 13 | 06/03/2025 | 07:59:58 | -70.00,-123.88 | 132.43 | 06/03/2025 | 07:59:36 | -69.99,-123.84 | 132.44 | 2.02 | 22 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/21/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 05/21/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9