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: 5/7/2025
| 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 | -70.74, 22.51 | 126.67 | 05/08/2025 | 22:12:35 | -70.61, 23.82 | 126.84 | 50.66 | 70 |
| 2 | 05/08/2025 | 23:01:59 | 70.10,-169.18 | 52.66 | 05/08/2025 | 23:02:09 | 70.12,-169.24 | 52.68 | 3.24 | 10 |
| 3 | 05/08/2025 | 23:52:41 | -70.00, -1.71 | 127.45 | 05/08/2025 | 23:51:39 | -70.00, -1.77 | 127.44 | 2.21 | 62 |
| 4 | 05/11/2025 | 14:28:13 | -70.20, 139.12 | 127.93 | 05/11/2025 | 14:29:09 | -70.20, 139.11 | 127.94 | 0.74 | 56 |
| 5 | 05/11/2025 | 15:18:57 | 70.08, -53.39 | 51.95 | 05/11/2025 | 15:18:36 | 70.09, -53.40 | 51.96 | 0.64 | 21 |
| 6 | 05/11/2025 | 16:09:26 | -69.30, 115.08 | 128.87 | 05/11/2025 | 16:08:17 | -69.37, 113.25 | 128.76 | 72.07 | 69 |
| 7 | 05/14/2025 | 05:54:46 | 71.18, 85.97 | 52.44 | 05/14/2025 | 05:55:51 | 71.07, 88.68 | 52.28 | 98.02 | 65 |
| 8 | 05/14/2025 | 06:45:10 | -70.14,-105.02 | 128.65 | 05/14/2025 | 06:45:36 | -70.14,-105.09 | 128.65 | 2.40 | 26 |
| 9 | 05/14/2025 | 07:35:54 | 70.02, 62.46 | 51.22 | 05/14/2025 | 07:35:03 | 70.03, 62.40 | 51.24 | 2.33 | 51 |
| 10 | 05/16/2025 | 22:11:25 | 70.23,-156.72 | 50.83 | 05/16/2025 | 22:12:31 | 70.22,-156.72 | 50.81 | 1.21 | 66 |
| 11 | 05/16/2025 | 23:02:07 | -70.14, 10.74 | 129.28 | 05/16/2025 | 23:02:01 | -70.11, 10.76 | 129.30 | 3.09 | 6 |
| 12 | 05/16/2025 | 23:52:44 | 69.65, 178.78 | 50.22 | 05/16/2025 | 23:51:33 | 69.72, 177.86 | 50.31 | 36.17 | 71 |
| 13 | 05/19/2025 | 14:28:22 | 70.18, -40.89 | 50.20 | 05/19/2025 | 14:28:57 | 70.16, -40.92 | 50.17 | 2.72 | 35 |
| 14 | 05/19/2025 | 15:19:04 | -70.09, 126.57 | 129.91 | 05/19/2025 | 15:18:26 | -70.10, 126.64 | 129.89 | 3.36 | 38 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/7/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/07/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9