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: 5/8/2025
| 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 | 05/08/2025 | 22:11:25 | -70.73, 22.53 | 126.68 | 05/08/2025 | 22:12:35 | -70.62, 23.84 | 126.83 | 49.92 | 70 |
| 2 | 05/08/2025 | 23:02:00 | 70.14,-169.24 | 52.71 | 05/08/2025 | 23:02:09 | 70.13,-169.22 | 52.70 | 1.07 | 9 |
| 3 | 05/08/2025 | 23:52:42 | -70.05, -1.77 | 127.41 | 05/08/2025 | 23:51:39 | -70.02, -1.75 | 127.43 | 3.31 | 63 |
| 4 | 05/11/2025 | 14:28:13 | -70.19, 139.14 | 127.94 | 05/11/2025 | 14:29:09 | -70.21, 139.12 | 127.93 | 2.39 | 56 |
| 5 | 05/11/2025 | 15:18:57 | 70.07, -53.37 | 51.94 | 05/11/2025 | 15:18:36 | 70.10, -53.38 | 51.97 | 3.50 | 21 |
| 6 | 05/11/2025 | 16:09:26 | -69.29, 115.09 | 128.88 | 05/11/2025 | 16:08:18 | -69.33, 113.19 | 128.80 | 74.78 | 68 |
| 7 | 05/14/2025 | 05:54:45 | 71.16, 85.99 | 52.43 | 05/14/2025 | 05:55:51 | 71.03, 88.61 | 52.23 | 95.46 | 66 |
| 8 | 05/14/2025 | 06:45:10 | -70.18,-105.09 | 128.61 | 05/14/2025 | 06:45:35 | -70.15,-105.07 | 128.64 | 2.95 | 25 |
| 9 | 05/14/2025 | 07:35:54 | 70.06, 62.40 | 51.27 | 05/14/2025 | 07:35:02 | 70.04, 62.42 | 51.25 | 2.14 | 52 |
| 10 | 05/16/2025 | 22:11:25 | 70.21,-156.70 | 50.82 | 05/16/2025 | 22:12:31 | 70.23,-156.70 | 50.83 | 1.99 | 66 |
| 11 | 05/16/2025 | 23:02:07 | -70.12, 10.76 | 129.29 | 05/16/2025 | 23:02:01 | -70.12, 10.78 | 129.29 | 0.72 | 6 |
| 12 | 05/16/2025 | 23:52:45 | 69.69, 178.72 | 50.26 | 05/16/2025 | 23:51:33 | 69.74, 177.88 | 50.33 | 32.72 | 72 |
| 13 | 05/19/2025 | 14:28:22 | 70.16, -40.87 | 50.18 | 05/19/2025 | 14:28:57 | 70.17, -40.89 | 50.19 | 1.38 | 35 |
| 14 | 05/19/2025 | 15:19:04 | -70.07, 126.59 | 129.92 | 05/19/2025 | 15:18:27 | -70.06, 126.59 | 129.93 | 1.01 | 37 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/8/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/08/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9