Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 5/4/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 05/06/2025 | 06:45:02 | 70.18, 74.95 | 53.47 | 05/06/2025 | 06:45:41 | 70.18, 74.97 | 53.47 | 0.86 | 39 |
| 2 | 05/06/2025 | 07:35:44 | -70.07,-117.57 | 126.65 | 05/06/2025 | 07:35:11 | -70.07,-117.56 | 126.65 | 0.81 | 33 |
| 3 | 05/08/2025 | 22:11:25 | -70.73, 22.51 | 126.67 | 05/08/2025 | 22:12:35 | -70.61, 23.83 | 126.84 | 50.42 | 70 |
| 4 | 05/08/2025 | 23:01:59 | 70.10,-169.18 | 52.66 | 05/08/2025 | 23:02:09 | 70.12,-169.24 | 52.68 | 3.13 | 10 |
| 5 | 05/08/2025 | 23:52:41 | -70.00, -1.70 | 127.45 | 05/08/2025 | 23:51:39 | -70.01, -1.76 | 127.44 | 2.37 | 62 |
| 6 | 05/11/2025 | 14:28:13 | -70.20, 139.12 | 127.93 | 05/11/2025 | 14:29:09 | -70.19, 139.10 | 127.94 | 1.53 | 56 |
| 7 | 05/11/2025 | 15:18:57 | 70.09, -53.40 | 51.96 | 05/11/2025 | 15:18:36 | 70.08, -53.41 | 51.94 | 1.31 | 21 |
| 8 | 05/11/2025 | 16:09:26 | -69.30, 115.07 | 128.86 | 05/11/2025 | 16:08:17 | -69.36, 113.24 | 128.76 | 72.19 | 69 |
| 9 | 05/14/2025 | 05:54:45 | 71.14, 86.04 | 52.40 | 05/14/2025 | 05:55:51 | 71.05, 88.64 | 52.25 | 94.32 | 66 |
| 10 | 05/14/2025 | 06:45:10 | -70.15,-105.04 | 128.64 | 05/14/2025 | 06:45:35 | -70.17,-105.04 | 128.62 | 2.73 | 25 |
| 11 | 05/14/2025 | 07:35:54 | 70.04, 62.44 | 51.24 | 05/14/2025 | 07:35:02 | 70.06, 62.45 | 51.27 | 2.58 | 52 |
| 12 | 05/16/2025 | 22:11:24 | 70.20,-156.68 | 50.80 | 05/16/2025 | 22:12:30 | 70.23,-156.70 | 50.82 | 2.95 | 66 |
| 13 | 05/16/2025 | 23:02:06 | -70.10, 10.79 | 129.31 | 05/16/2025 | 23:02:00 | -70.12, 10.78 | 129.29 | 1.82 | 6 |
| 14 | 05/16/2025 | 23:52:44 | 69.67, 178.74 | 50.25 | 05/16/2025 | 23:51:32 | 69.73, 177.88 | 50.32 | 33.77 | 72 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/4/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/04/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9