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: 6/26/2025
| 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 | 06/28/2025 | 14:28:48 | -70.11, 139.09 | 133.17 | 06/28/2025 | 14:29:16 | -70.11, 139.11 | 133.17 | 0.65 | 28 |
| 2 | 06/28/2025 | 15:19:33 | 70.02, -53.46 | 46.74 | 06/28/2025 | 15:18:43 | 70.01, -53.39 | 46.74 | 2.95 | 50 |
| 3 | 07/01/2025 | 05:55:04 | 70.26, 87.31 | 47.16 | 07/01/2025 | 05:56:16 | 70.22, 87.50 | 47.09 | 8.74 | 72 |
| 4 | 07/01/2025 | 06:45:44 | -70.08,-105.10 | 133.03 | 07/01/2025 | 06:45:47 | -70.05,-105.10 | 133.06 | 3.33 | 3 |
| 5 | 07/01/2025 | 07:36:27 | 69.89, 62.49 | 46.78 | 07/01/2025 | 07:35:15 | 69.89, 62.32 | 46.79 | 6.65 | 72 |
| 6 | 07/03/2025 | 22:11:58 | 70.14,-156.73 | 47.24 | 07/03/2025 | 22:12:47 | 70.14,-156.73 | 47.23 | 0.38 | 49 |
| 7 | 07/03/2025 | 23:02:39 | -70.01, 10.78 | 132.90 | 07/03/2025 | 23:02:17 | -70.03, 10.76 | 132.87 | 3.30 | 22 |
| 8 | 07/06/2025 | 14:28:53 | 70.12, -40.94 | 47.48 | 07/06/2025 | 14:29:16 | 70.10, -40.90 | 47.46 | 2.81 | 23 |
| 9 | 07/06/2025 | 15:19:34 | -69.98, 126.58 | 132.66 | 07/06/2025 | 15:18:46 | -70.00, 126.59 | 132.64 | 1.84 | 48 |
| 10 | 07/09/2025 | 05:55:06 | -70.28, -92.73 | 132.05 | 07/09/2025 | 05:56:18 | -70.22, -92.49 | 132.13 | 11.01 | 72 |
| 11 | 07/09/2025 | 06:45:48 | 70.06, 74.92 | 47.72 | 07/09/2025 | 06:45:46 | 70.05, 74.91 | 47.72 | 0.80 | 2 |
| 12 | 07/09/2025 | 07:36:29 | -69.91,-117.54 | 132.43 | 07/09/2025 | 07:35:16 | -69.95,-117.59 | 132.38 | 4.71 | 73 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/26/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/26/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9