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 | 22:11:43 | -70.17, 23.28 | 132.90 | 06/09/2025 | 22:12:33 | -70.16, 23.31 | 132.92 | 1.50 | 50 |
| 2 | 06/09/2025 | 23:02:28 | 70.07,-169.26 | 47.00 | 06/09/2025 | 23:02:00 | 70.06,-169.19 | 46.99 | 3.02 | 28 |
| 3 | 06/09/2025 | 23:52:52 | -69.06, -0.48 | 134.05 | 06/09/2025 | 23:51:45 | -69.12, -2.83 | 133.92 | 93.60 | 67 |
| 4 | 06/12/2025 | 13:38:15 | 71.12, -29.82 | 47.92 | 06/12/2025 | 13:39:21 | 71.03, -27.15 | 47.75 | 96.71 | 66 |
| 5 | 06/12/2025 | 14:28:39 | -70.11, 139.13 | 133.14 | 06/12/2025 | 14:29:06 | -70.10, 139.09 | 133.16 | 2.22 | 27 |
| 6 | 06/12/2025 | 15:19:24 | 70.02, -53.42 | 46.76 | 06/12/2025 | 15:18:33 | 70.00, -53.41 | 46.75 | 2.21 | 51 |
| 7 | 06/15/2025 | 05:54:56 | 70.28, 87.32 | 46.91 | 06/15/2025 | 05:56:07 | 70.23, 87.52 | 46.85 | 9.49 | 71 |
| 8 | 06/15/2025 | 06:45:35 | -70.06,-105.02 | 133.32 | 06/15/2025 | 06:45:38 | -70.07,-105.08 | 133.31 | 2.26 | 3 |
| 9 | 06/15/2025 | 07:36:19 | 69.91, 62.50 | 46.53 | 06/15/2025 | 07:35:05 | 69.96, 62.42 | 46.59 | 6.36 | 74 |
| 10 | 06/17/2025 | 22:11:51 | 70.18,-156.76 | 46.73 | 06/17/2025 | 22:12:39 | 70.17,-156.69 | 46.71 | 2.97 | 48 |
| 11 | 06/17/2025 | 23:02:32 | -70.06, 10.74 | 133.40 | 06/17/2025 | 23:02:09 | -70.06, 10.80 | 133.39 | 2.30 | 23 |
| 12 | 06/20/2025 | 14:28:45 | 70.08, -40.85 | 46.60 | 06/20/2025 | 14:29:10 | 70.08, -40.93 | 46.60 | 3.11 | 25 |
| 13 | 06/20/2025 | 15:19:27 | -70.01, 126.58 | 133.48 | 06/20/2025 | 15:18:40 | -69.98, 126.56 | 133.50 | 2.80 | 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