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: 2/14/2025
| 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 | 02/15/2025 | 06:45:28 | 70.17, 74.95 | 82.78 | 02/15/2025 | 06:46:12 | 70.14, 74.94 | 82.74 | 3.25 | 44 |
| 2 | 02/15/2025 | 07:36:09 | -70.06,-117.56 | 97.35 | 02/15/2025 | 07:35:41 | -70.08,-117.50 | 97.33 | 3.26 | 28 |
| 3 | 02/17/2025 | 22:11:55 | -71.04, 22.00 | 97.22 | 02/17/2025 | 22:13:02 | -70.90, 24.31 | 97.46 | 85.19 | 67 |
| 4 | 02/17/2025 | 23:02:24 | 70.11,-169.19 | 81.78 | 02/17/2025 | 23:02:42 | 70.09,-169.25 | 81.76 | 2.97 | 18 |
| 5 | 02/17/2025 | 23:53:05 | -70.00, -1.70 | 98.35 | 02/17/2025 | 23:52:12 | -69.98, -1.77 | 98.36 | 3.10 | 53 |
| 6 | 02/20/2025 | 14:28:36 | -70.20, 139.12 | 99.07 | 02/20/2025 | 14:29:43 | -70.22, 139.17 | 99.07 | 2.60 | 67 |
| 7 | 02/20/2025 | 15:19:20 | 70.06, -53.36 | 80.77 | 02/20/2025 | 15:19:11 | 70.05, -53.42 | 80.77 | 2.51 | 9 |
| 8 | 02/20/2025 | 16:09:56 | -69.68, 114.53 | 99.65 | 02/20/2025 | 16:08:44 | -69.78, 113.83 | 99.50 | 29.28 | 72 |
| 9 | 02/23/2025 | 06:45:32 | -70.16,-105.06 | 100.09 | 02/23/2025 | 06:46:12 | -70.14,-105.06 | 100.12 | 1.84 | 40 |
| 10 | 02/23/2025 | 07:36:16 | 70.02, 62.46 | 79.75 | 02/23/2025 | 07:35:39 | 70.03, 62.43 | 79.77 | 1.54 | 37 |
| 11 | 02/25/2025 | 22:11:53 | 70.63,-157.35 | 79.42 | 02/25/2025 | 22:13:03 | 70.51,-156.26 | 79.25 | 42.05 | 70 |
| 12 | 02/25/2025 | 23:02:27 | -70.13, 10.75 | 101.12 | 02/25/2025 | 23:02:38 | -70.14, 10.82 | 101.12 | 2.81 | 11 |
| 13 | 02/25/2025 | 23:53:11 | 70.00, 178.26 | 78.73 | 02/25/2025 | 23:52:05 | 70.02, 178.30 | 78.76 | 3.23 | 66 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/14/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/14/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9