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: 5/7/2025
| 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 | 05/07/2025 | 15:42:47 | 70.04, -59.68 | 52.96 | 05/07/2025 | 15:43:24 | 70.02, -59.68 | 52.94 | 2.15 | 37 |
| 2 | 05/07/2025 | 16:33:29 | -69.94, 107.79 | 127.16 | 05/07/2025 | 16:32:53 | -69.96, 107.86 | 127.14 | 3.55 | 36 |
| 3 | 05/10/2025 | 07:09:08 | -70.54,-112.01 | 127.23 | 05/10/2025 | 07:10:18 | -70.43,-110.85 | 127.37 | 44.59 | 70 |
| 4 | 05/10/2025 | 07:59:44 | 70.02, 56.12 | 52.23 | 05/10/2025 | 07:59:51 | 70.00, 56.18 | 52.20 | 2.97 | 7 |
| 5 | 05/10/2025 | 08:50:26 | -69.91,-136.40 | 127.90 | 05/10/2025 | 08:49:21 | -69.89,-136.35 | 127.92 | 3.29 | 65 |
| 6 | 05/12/2025 | 23:25:56 | -70.05, 4.53 | 128.42 | 05/12/2025 | 23:26:51 | -70.06, 4.50 | 128.41 | 1.84 | 55 |
| 7 | 05/13/2025 | 00:16:40 | 69.95, 171.98 | 51.48 | 05/13/2025 | 00:16:18 | 69.96, 172.00 | 51.48 | 0.69 | 22 |
| 8 | 05/13/2025 | 01:07:08 | -69.10, -19.46 | 129.41 | 05/13/2025 | 01:06:00 | -69.18, -21.41 | 129.28 | 77.67 | 68 |
| 9 | 05/15/2025 | 14:52:27 | 71.00, -48.55 | 51.94 | 05/15/2025 | 14:53:33 | 70.92, -45.97 | 51.81 | 93.87 | 66 |
| 10 | 05/15/2025 | 15:42:53 | -70.04, 120.31 | 129.07 | 05/15/2025 | 15:43:17 | -70.05, 120.37 | 129.07 | 2.47 | 24 |
| 11 | 05/15/2025 | 16:33:35 | 69.90, -72.17 | 50.78 | 05/15/2025 | 16:32:44 | 69.88, -72.22 | 50.77 | 2.58 | 51 |
| 12 | 05/18/2025 | 07:09:06 | 70.11, 68.66 | 50.41 | 05/18/2025 | 07:10:12 | 70.11, 68.71 | 50.40 | 2.21 | 66 |
| 13 | 05/18/2025 | 07:59:48 | -69.98,-123.84 | 129.73 | 05/18/2025 | 07:59:42 | -70.00,-123.81 | 129.71 | 2.41 | 6 |
| 14 | 05/18/2025 | 08:50:25 | 69.53, 44.15 | 49.80 | 05/18/2025 | 08:49:14 | 69.61, 43.30 | 49.91 | 34.20 | 71 |
| 15 | 05/20/2025 | 23:26:02 | 70.06,-175.51 | 49.80 | 05/20/2025 | 23:26:38 | 70.03,-175.50 | 49.77 | 3.10 | 36 |
| 16 | 05/21/2025 | 00:16:44 | -69.94, -8.01 | 130.34 | 05/21/2025 | 00:16:08 | -69.93, -8.02 | 130.35 | 1.16 | 36 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/7/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 05/07/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9