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: 6/8/2025
| 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 | 06/09/2025 | 22:11:44 | -70.18, 23.27 | 132.89 | 06/09/2025 | 22:12:34 | -70.15, 23.29 | 132.93 | 3.06 | 50 |
| 2 | 06/09/2025 | 23:02:28 | 70.03,-169.20 | 46.95 | 06/09/2025 | 23:02:01 | 70.05,-169.20 | 46.98 | 3.13 | 27 |
| 3 | 06/09/2025 | 23:52:53 | -69.07, -0.49 | 134.04 | 06/09/2025 | 23:51:46 | -69.12, -2.84 | 133.93 | 93.56 | 67 |
| 4 | 06/12/2025 | 13:38:15 | 71.13, -29.83 | 47.93 | 06/12/2025 | 13:39:21 | 71.01, -27.17 | 47.74 | 96.81 | 66 |
| 5 | 06/12/2025 | 14:28:39 | -70.12, 139.12 | 133.13 | 06/12/2025 | 14:29:05 | -70.14, 139.15 | 133.12 | 2.24 | 26 |
| 6 | 06/12/2025 | 15:19:23 | 69.97, -53.35 | 46.72 | 06/12/2025 | 15:18:33 | 69.98, -53.43 | 46.73 | 3.10 | 50 |
| 7 | 06/15/2025 | 05:54:55 | 70.24, 87.38 | 46.87 | 06/15/2025 | 05:56:07 | 70.21, 87.49 | 46.83 | 5.47 | 72 |
| 8 | 06/15/2025 | 06:45:35 | -70.07,-105.04 | 133.31 | 06/15/2025 | 06:45:37 | -70.10,-105.03 | 133.28 | 3.29 | 2 |
| 9 | 06/15/2025 | 07:36:18 | 69.87, 62.56 | 46.49 | 06/15/2025 | 07:35:06 | 69.88, 62.31 | 46.51 | 9.86 | 72 |
| 10 | 06/17/2025 | 22:11:50 | 70.14,-156.71 | 46.69 | 06/17/2025 | 22:12:39 | 70.14,-156.73 | 46.68 | 0.98 | 49 |
| 11 | 06/17/2025 | 23:02:31 | -70.02, 10.79 | 133.44 | 06/17/2025 | 23:02:09 | -70.03, 10.76 | 133.42 | 2.03 | 22 |
| 12 | 06/20/2025 | 14:28:46 | 70.10, -40.88 | 46.62 | 06/20/2025 | 14:29:10 | 70.10, -40.91 | 46.61 | 0.99 | 24 |
| 13 | 06/20/2025 | 15:19:27 | -69.98, 126.62 | 133.51 | 06/20/2025 | 15:18:40 | -70.00, 126.58 | 133.49 | 2.78 | 47 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/8/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/08/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9