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: 4/14/2025
| 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 | 04/16/2025 | 07:59:17 | -70.01,-123.78 | 120.31 | 04/16/2025 | 08:00:06 | -70.03,-123.80 | 120.30 | 1.96 | 49 |
| 2 | 04/16/2025 | 08:50:02 | 69.94, 43.64 | 59.61 | 04/16/2025 | 08:49:33 | 69.92, 43.70 | 59.59 | 2.82 | 29 |
| 3 | 04/18/2025 | 23:25:46 | 70.74,-176.49 | 59.53 | 04/18/2025 | 23:26:54 | 70.64,-174.65 | 59.38 | 68.26 | 68 |
| 4 | 04/19/2025 | 00:16:15 | -69.96, -7.95 | 121.30 | 04/19/2025 | 00:16:34 | -69.99, -7.97 | 121.27 | 2.99 | 19 |
| 5 | 04/19/2025 | 01:07:00 | 69.89, 159.46 | 58.63 | 04/19/2025 | 01:06:01 | 69.88, 159.52 | 58.61 | 2.87 | 59 |
| 6 | 04/21/2025 | 15:42:31 | 70.07, -59.68 | 57.92 | 04/21/2025 | 15:43:30 | 70.06, -59.61 | 57.90 | 2.72 | 59 |
| 7 | 04/21/2025 | 16:33:12 | -69.93, 107.87 | 122.25 | 04/21/2025 | 16:33:00 | -69.96, 107.87 | 122.22 | 3.59 | 12 |
| 8 | 04/21/2025 | 17:23:46 | 69.28, -83.88 | 57.07 | 04/21/2025 | 17:22:36 | 69.35, -85.32 | 57.18 | 56.80 | 70 |
| 9 | 04/24/2025 | 07:59:28 | 70.00, 56.19 | 56.95 | 04/24/2025 | 07:59:57 | 69.99, 56.17 | 56.93 | 2.07 | 29 |
| 10 | 04/24/2025 | 08:50:10 | -69.90,-136.34 | 123.17 | 04/24/2025 | 08:49:27 | -69.88,-136.35 | 123.19 | 2.10 | 43 |
| 11 | 04/26/2025 | 23:25:43 | -70.15, 4.42 | 123.76 | 04/26/2025 | 23:26:54 | -70.15, 4.64 | 123.77 | 8.36 | 71 |
| 12 | 04/27/2025 | 00:16:25 | 69.94, 172.04 | 56.02 | 04/27/2025 | 00:16:22 | 69.97, 172.04 | 56.05 | 3.41 | 3 |
| 13 | 04/27/2025 | 01:07:06 | -69.78, -20.40 | 124.16 | 04/27/2025 | 01:05:53 | -69.82, -20.55 | 124.12 | 6.74 | 73 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/14/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/14/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9