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: 1/12/2025
| 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 | 01/14/2025 | 05:55:25 | -71.03, -93.80 | 87.68 | 01/14/2025 | 05:56:32 | -70.93, -91.49 | 87.87 | 84.52 | 67 |
| 2 | 01/14/2025 | 06:45:54 | 70.14, 74.96 | 91.37 | 01/14/2025 | 06:46:12 | 70.12, 74.95 | 91.35 | 2.29 | 18 |
| 3 | 01/14/2025 | 07:36:35 | -70.00,-117.52 | 88.78 | 01/14/2025 | 07:35:42 | -70.01,-117.58 | 88.77 | 2.16 | 53 |
| 4 | 01/16/2025 | 22:12:02 | -70.44, 22.97 | 88.80 | 01/16/2025 | 22:13:13 | -70.36, 23.53 | 88.91 | 22.71 | 71 |
| 5 | 01/16/2025 | 23:02:42 | 70.12,-169.22 | 90.85 | 01/16/2025 | 23:02:43 | 70.09,-169.21 | 90.83 | 2.60 | 1 |
| 6 | 01/16/2025 | 23:53:23 | -69.98, -1.70 | 89.30 | 01/16/2025 | 23:52:13 | -69.99, -1.73 | 89.28 | 1.40 | 70 |
| 7 | 01/19/2025 | 14:28:46 | -70.22, 139.11 | 89.58 | 01/19/2025 | 14:29:46 | -70.20, 139.17 | 89.61 | 3.29 | 60 |
| 8 | 01/19/2025 | 15:19:30 | 70.11, -53.41 | 90.30 | 01/19/2025 | 15:19:13 | 70.09, -53.34 | 90.28 | 3.09 | 17 |
| 9 | 01/19/2025 | 16:10:02 | -69.50, 114.81 | 90.35 | 01/19/2025 | 16:08:51 | -69.55, 113.54 | 90.25 | 49.98 | 71 |
| 10 | 01/22/2025 | 06:45:32 | -70.17,-105.02 | 90.22 | 01/22/2025 | 06:46:15 | -70.16,-105.00 | 90.23 | 0.66 | 43 |
| 11 | 01/22/2025 | 07:36:16 | 70.05, 62.47 | 89.66 | 01/22/2025 | 07:35:42 | 70.05, 62.48 | 89.65 | 0.55 | 34 |
| 12 | 01/24/2025 | 22:11:54 | 71.10,-158.04 | 90.15 | 01/24/2025 | 22:13:00 | 71.01,-155.48 | 89.95 | 92.86 | 66 |
| 13 | 01/24/2025 | 23:02:19 | -70.13, 10.85 | 90.90 | 01/24/2025 | 23:02:44 | -70.15, 10.85 | 90.88 | 2.32 | 25 |
| 14 | 01/24/2025 | 23:53:03 | 70.01, 178.33 | 88.98 | 01/24/2025 | 23:52:11 | 70.03, 178.33 | 89.00 | 2.16 | 52 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/12/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/12/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9