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: 6/14/2025
| 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 | 06/15/2025 | 05:54:56 | 70.26, 87.35 | 46.89 | 06/15/2025 | 05:56:08 | 70.22, 87.50 | 46.84 | 7.44 | 72 |
| 2 | 06/15/2025 | 06:45:36 | -70.10,-105.08 | 133.28 | 06/15/2025 | 06:45:38 | -70.10,-105.02 | 133.28 | 2.34 | 2 |
| 3 | 06/15/2025 | 07:36:18 | 69.89, 62.53 | 46.51 | 06/15/2025 | 07:35:06 | 69.90, 62.33 | 46.52 | 7.99 | 72 |
| 4 | 06/17/2025 | 22:11:50 | 70.16,-156.74 | 46.72 | 06/17/2025 | 22:12:39 | 70.17,-156.69 | 46.71 | 2.15 | 49 |
| 5 | 06/17/2025 | 23:02:31 | -70.05, 10.75 | 133.41 | 06/17/2025 | 23:02:09 | -70.06, 10.79 | 133.40 | 1.69 | 22 |
| 6 | 06/17/2025 | 23:52:58 | 69.00, 179.58 | 45.51 | 06/17/2025 | 23:51:52 | 69.07, 177.09 | 45.66 | 99.17 | 66 |
| 7 | 06/20/2025 | 14:28:45 | 70.08, -40.85 | 46.60 | 06/20/2025 | 14:29:11 | 70.10, -40.91 | 46.61 | 3.45 | 26 |
| 8 | 06/20/2025 | 15:19:27 | -70.01, 126.57 | 133.47 | 06/20/2025 | 15:18:41 | -69.99, 126.57 | 133.49 | 2.29 | 46 |
| 9 | 06/23/2025 | 05:55:01 | -70.40, -92.88 | 133.05 | 06/23/2025 | 05:56:12 | -70.34, -92.33 | 133.14 | 21.72 | 71 |
| 10 | 06/23/2025 | 06:45:41 | 70.05, 74.96 | 46.58 | 06/23/2025 | 06:45:42 | 70.06, 74.92 | 46.60 | 2.37 | 1 |
| 11 | 06/23/2025 | 07:36:23 | -69.98,-117.61 | 133.49 | 06/23/2025 | 07:35:12 | -69.96,-117.59 | 133.50 | 2.30 | 71 |
| 12 | 06/25/2025 | 22:11:53 | -70.16, 23.25 | 133.23 | 06/25/2025 | 22:12:45 | -70.18, 23.31 | 133.23 | 2.98 | 52 |
| 13 | 06/25/2025 | 23:02:37 | 70.03,-169.24 | 46.63 | 06/25/2025 | 23:02:13 | 70.01,-169.28 | 46.61 | 2.71 | 24 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/14/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/14/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9