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: 6/29/2025
| 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 | 07/01/2025 | 05:55:05 | 70.30, 87.24 | 47.20 | 07/01/2025 | 05:56:16 | 70.23, 87.52 | 47.10 | 13.62 | 71 |
| 2 | 07/01/2025 | 06:45:44 | -70.08,-105.09 | 133.03 | 07/01/2025 | 06:45:47 | -70.06,-105.09 | 133.06 | 2.11 | 3 |
| 3 | 07/01/2025 | 07:36:27 | 69.89, 62.51 | 46.77 | 07/01/2025 | 07:35:15 | 69.90, 62.33 | 46.80 | 6.85 | 72 |
| 4 | 07/03/2025 | 22:11:57 | 70.13,-156.72 | 47.23 | 07/03/2025 | 22:12:46 | 70.15,-156.71 | 47.24 | 2.50 | 49 |
| 5 | 07/03/2025 | 23:02:39 | -70.05, 10.71 | 132.85 | 07/03/2025 | 23:02:16 | -70.04, 10.77 | 132.86 | 2.48 | 23 |
| 6 | 07/06/2025 | 14:28:53 | 70.11, -40.93 | 47.48 | 07/06/2025 | 14:29:16 | 70.12, -40.88 | 47.47 | 2.08 | 23 |
| 7 | 07/06/2025 | 15:19:34 | -69.98, 126.59 | 132.67 | 07/06/2025 | 15:18:47 | -69.96, 126.53 | 132.68 | 3.26 | 47 |
| 8 | 07/09/2025 | 05:55:06 | -70.27, -92.72 | 132.06 | 07/09/2025 | 05:56:18 | -70.24, -92.46 | 132.11 | 10.27 | 72 |
| 9 | 07/09/2025 | 06:45:48 | 70.05, 74.94 | 47.71 | 07/09/2025 | 06:45:46 | 70.07, 74.94 | 47.73 | 2.38 | 2 |
| 10 | 07/09/2025 | 07:36:30 | -69.96,-117.61 | 132.38 | 07/09/2025 | 07:35:16 | -69.97,-117.57 | 132.36 | 2.01 | 74 |
| 11 | 07/11/2025 | 22:12:00 | -70.15, 23.24 | 131.83 | 07/11/2025 | 22:12:49 | -70.13, 23.26 | 131.87 | 2.76 | 49 |
| 12 | 07/11/2025 | 23:02:43 | 69.98,-169.20 | 48.00 | 07/11/2025 | 23:02:16 | 70.01,-169.26 | 48.03 | 3.31 | 27 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/29/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/29/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9