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: 6/2/2025
| 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 | 06/04/2025 | 14:28:36 | 70.13, -40.89 | 47.56 | 06/04/2025 | 14:28:57 | 70.15, -40.82 | 47.57 | 2.86 | 21 |
| 2 | 06/04/2025 | 15:19:17 | -70.02, 126.61 | 132.56 | 06/04/2025 | 15:18:27 | -70.03, 126.65 | 132.55 | 1.72 | 50 |
| 3 | 06/07/2025 | 05:54:47 | -70.16, -92.48 | 132.68 | 06/07/2025 | 05:55:59 | -70.17, -92.55 | 132.69 | 2.59 | 72 |
| 4 | 06/07/2025 | 06:45:32 | 70.07, 74.97 | 47.22 | 06/07/2025 | 06:45:26 | 70.06, 74.95 | 47.22 | 1.08 | 6 |
| 5 | 06/07/2025 | 07:36:10 | -69.80,-117.30 | 133.07 | 06/07/2025 | 07:34:58 | -69.84,-117.73 | 133.01 | 17.20 | 72 |
| 6 | 06/09/2025 | 22:11:43 | -70.16, 23.29 | 132.91 | 06/09/2025 | 22:12:25 | -70.17, 23.36 | 132.91 | 2.75 | 42 |
| 7 | 06/09/2025 | 23:02:27 | 70.01,-169.18 | 46.94 | 06/09/2025 | 23:01:53 | 70.01,-169.23 | 46.94 | 1.96 | 34 |
| 8 | 06/12/2025 | 13:38:07 | 70.70, -29.12 | 47.48 | 06/12/2025 | 13:39:16 | 70.59, -27.77 | 47.33 | 51.31 | 69 |
| 9 | 06/12/2025 | 14:28:39 | -70.11, 139.14 | 133.14 | 06/12/2025 | 14:28:53 | -70.10, 139.14 | 133.16 | 1.16 | 14 |
| 10 | 06/12/2025 | 15:19:23 | 69.96, -53.34 | 46.71 | 06/12/2025 | 15:18:20 | 69.99, -53.37 | 46.74 | 2.57 | 63 |
| 11 | 06/15/2025 | 05:54:54 | 70.18, 87.46 | 46.81 | 06/15/2025 | 05:55:50 | 70.16, 87.49 | 46.78 | 3.16 | 56 |
| 12 | 06/15/2025 | 06:45:35 | -70.06,-105.03 | 133.32 | 06/15/2025 | 06:45:20 | -70.05,-105.02 | 133.33 | 1.18 | 15 |
| 13 | 06/15/2025 | 07:36:07 | 69.28, 63.42 | 45.88 | 06/15/2025 | 07:34:58 | 69.33, 61.63 | 45.98 | 70.33 | 69 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/2/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/02/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9