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: 6/17/2025
| 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 | 06/17/2025 | 22:11:50 | 70.15,-156.72 | 46.70 | 06/17/2025 | 22:12:40 | 70.13,-156.75 | 46.67 | 3.05 | 50 |
| 2 | 06/17/2025 | 23:02:31 | -70.04, 10.76 | 133.41 | 06/17/2025 | 23:02:09 | -70.07, 10.80 | 133.39 | 2.96 | 22 |
| 3 | 06/20/2025 | 14:28:46 | 70.12, -40.91 | 46.64 | 06/20/2025 | 14:29:11 | 70.12, -40.89 | 46.63 | 0.72 | 25 |
| 4 | 06/20/2025 | 15:19:27 | -70.00, 126.59 | 133.49 | 06/20/2025 | 15:18:41 | -70.01, 126.59 | 133.48 | 0.27 | 46 |
| 5 | 06/23/2025 | 05:55:01 | -70.39, -92.87 | 133.07 | 06/23/2025 | 05:56:13 | -70.30, -92.38 | 133.18 | 20.31 | 72 |
| 6 | 06/23/2025 | 06:45:42 | 70.09, 74.91 | 46.62 | 06/23/2025 | 06:45:42 | 70.09, 74.95 | 46.62 | 1.72 | 0 |
| 7 | 06/23/2025 | 07:36:23 | -69.97,-117.60 | 133.50 | 06/23/2025 | 07:35:12 | -69.98,-117.57 | 133.48 | 1.72 | 71 |
| 8 | 06/25/2025 | 22:11:52 | -70.15, 23.27 | 133.25 | 06/25/2025 | 22:12:45 | -70.15, 23.28 | 133.25 | 0.39 | 53 |
| 9 | 06/25/2025 | 23:02:37 | 70.06,-169.29 | 46.67 | 06/25/2025 | 23:02:12 | 70.04,-169.24 | 46.64 | 3.34 | 25 |
| 10 | 06/25/2025 | 23:53:03 | -69.14, -0.64 | 134.29 | 06/25/2025 | 23:51:55 | -69.22, -2.72 | 134.13 | 82.77 | 68 |
| 11 | 06/28/2025 | 14:28:48 | -70.12, 139.08 | 133.16 | 06/28/2025 | 14:29:15 | -70.14, 139.15 | 133.14 | 3.47 | 27 |
| 12 | 06/28/2025 | 15:19:32 | 69.99, -53.42 | 46.71 | 06/28/2025 | 15:18:43 | 69.97, -53.45 | 46.70 | 2.36 | 49 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/17/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/17/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9