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: 2/17/2025
| 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 | 02/17/2025 | 22:11:55 | -71.03, 22.02 | 97.23 | 02/17/2025 | 22:13:02 | -70.91, 24.32 | 97.46 | 84.39 | 67 |
| 2 | 02/17/2025 | 23:02:24 | 70.09,-169.17 | 81.77 | 02/17/2025 | 23:02:42 | 70.10,-169.24 | 81.77 | 2.75 | 18 |
| 3 | 02/17/2025 | 23:53:06 | -70.04, -1.76 | 98.31 | 02/17/2025 | 23:52:11 | -70.04, -1.69 | 98.30 | 2.94 | 55 |
| 4 | 02/20/2025 | 14:28:36 | -70.19, 139.13 | 99.08 | 02/20/2025 | 14:29:43 | -70.21, 139.15 | 99.08 | 1.90 | 67 |
| 5 | 02/20/2025 | 15:19:21 | 70.10, -53.42 | 80.82 | 02/20/2025 | 15:19:10 | 70.10, -53.35 | 80.82 | 2.60 | 11 |
| 6 | 02/20/2025 | 16:09:56 | -69.67, 114.54 | 99.66 | 02/20/2025 | 16:08:44 | -69.77, 113.82 | 99.51 | 30.17 | 72 |
| 7 | 02/23/2025 | 06:45:31 | -70.16,-105.05 | 100.10 | 02/23/2025 | 06:46:10 | -70.17,-105.02 | 100.09 | 1.80 | 39 |
| 8 | 02/23/2025 | 07:36:15 | 70.02, 62.47 | 79.75 | 02/23/2025 | 07:35:38 | 70.00, 62.39 | 79.74 | 3.23 | 37 |
| 9 | 02/25/2025 | 22:11:52 | 70.57,-157.26 | 79.37 | 02/25/2025 | 22:13:03 | 70.46,-156.34 | 79.20 | 36.56 | 71 |
| 10 | 02/25/2025 | 23:02:27 | -70.13, 10.75 | 101.12 | 02/25/2025 | 23:02:37 | -70.14, 10.82 | 101.12 | 2.87 | 10 |
| 11 | 02/25/2025 | 23:53:11 | 70.00, 178.26 | 78.73 | 02/25/2025 | 23:52:04 | 70.02, 178.31 | 78.76 | 3.30 | 67 |
| 12 | 02/28/2025 | 14:28:40 | 70.15, -40.83 | 77.90 | 02/28/2025 | 14:29:34 | 70.16, -40.89 | 77.91 | 2.53 | 54 |
| 13 | 02/28/2025 | 15:19:22 | -70.07, 126.61 | 102.20 | 02/28/2025 | 15:19:04 | -70.05, 126.60 | 102.21 | 1.71 | 18 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/17/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/17/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9