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: 5/25/2025
| 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 | 05/27/2025 | 14:28:29 | -70.21, 139.04 | 131.27 | 05/27/2025 | 14:29:01 | -70.18, 139.09 | 131.30 | 3.03 | 32 |
| 2 | 05/27/2025 | 15:19:13 | 70.07, -53.44 | 48.58 | 05/27/2025 | 15:18:28 | 70.09, -53.41 | 48.60 | 2.73 | 45 |
| 3 | 05/30/2025 | 05:54:47 | 70.40, 87.17 | 48.53 | 05/30/2025 | 05:55:58 | 70.34, 87.56 | 48.45 | 15.87 | 71 |
| 4 | 05/30/2025 | 06:45:25 | -70.12,-105.07 | 131.77 | 05/30/2025 | 06:45:30 | -70.11,-105.13 | 131.78 | 2.46 | 5 |
| 5 | 05/30/2025 | 07:36:10 | 70.03, 62.37 | 48.14 | 05/30/2025 | 07:34:57 | 70.01, 62.37 | 48.12 | 2.32 | 73 |
| 6 | 06/01/2025 | 22:11:40 | 70.22,-156.78 | 47.97 | 06/01/2025 | 22:12:27 | 70.20,-156.77 | 47.94 | 2.38 | 47 |
| 7 | 06/01/2025 | 23:02:21 | -70.10, 10.73 | 132.16 | 06/01/2025 | 23:01:57 | -70.08, 10.70 | 132.18 | 1.82 | 24 |
| 8 | 06/04/2025 | 13:38:08 | -71.12, 150.21 | 131.41 | 06/04/2025 | 13:39:14 | -71.01, 152.69 | 131.58 | 90.20 | 66 |
| 9 | 06/04/2025 | 14:28:36 | 70.14, -40.90 | 47.57 | 06/04/2025 | 14:28:55 | 70.14, -40.96 | 47.57 | 2.34 | 19 |
| 10 | 06/04/2025 | 15:19:18 | -70.07, 126.52 | 132.51 | 06/04/2025 | 15:18:24 | -70.09, 126.59 | 132.49 | 3.01 | 54 |
| 11 | 06/07/2025 | 05:54:49 | -70.26, -92.63 | 132.58 | 06/07/2025 | 05:55:55 | -70.24, -92.59 | 132.61 | 3.22 | 66 |
| 12 | 06/07/2025 | 06:45:33 | 70.13, 74.89 | 47.28 | 06/07/2025 | 06:45:22 | 70.13, 74.90 | 47.28 | 0.64 | 11 |
| 13 | 06/07/2025 | 07:36:08 | -69.69,-117.13 | 133.18 | 06/07/2025 | 07:34:57 | -69.75,-118.00 | 133.09 | 34.06 | 71 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/25/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/25/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9