Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/10/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 11/12/2025 | 22:36:55 | -70.71, 16.08 | 91.45 | 11/12/2025 | 22:38:04 | -70.56, 17.65 | 91.60 | 60.20 | 69 |
| 2 | 11/12/2025 | 23:27:28 | 69.99,-175.47 | 87.84 | 11/12/2025 | 23:27:39 | 70.01,-175.49 | 87.87 | 2.99 | 11 |
| 3 | 11/13/2025 | 00:18:10 | -69.92, -8.05 | 92.22 | 11/13/2025 | 00:17:09 | -69.91, -8.01 | 92.24 | 1.99 | 61 |
| 4 | 11/15/2025 | 14:53:43 | -70.08, 132.83 | 91.38 | 11/15/2025 | 14:54:40 | -70.09, 132.86 | 91.37 | 1.54 | 57 |
| 5 | 11/15/2025 | 15:44:27 | 69.94, -59.65 | 88.49 | 11/15/2025 | 15:44:08 | 69.93, -59.73 | 88.47 | 3.41 | 19 |
| 6 | 11/15/2025 | 16:34:57 | -69.24, 108.70 | 92.21 | 11/15/2025 | 16:33:48 | -69.27, 107.01 | 92.18 | 66.57 | 69 |
| 7 | 11/18/2025 | 06:20:19 | 71.07, 79.67 | 90.26 | 11/18/2025 | 06:21:24 | 70.95, 82.39 | 90.14 | 99.21 | 65 |
| 8 | 11/18/2025 | 07:10:43 | -70.05,-111.36 | 90.76 | 11/18/2025 | 07:11:09 | -70.02,-111.35 | 90.79 | 2.58 | 26 |
| 9 | 11/18/2025 | 08:01:27 | 69.91, 56.15 | 89.11 | 11/18/2025 | 08:00:36 | 69.91, 56.13 | 89.11 | 0.76 | 51 |
| 10 | 11/20/2025 | 22:37:01 | 70.10,-163.01 | 89.90 | 11/20/2025 | 22:38:07 | 70.07,-163.03 | 89.87 | 2.98 | 66 |
| 11 | 11/20/2025 | 23:27:42 | -69.97, 4.51 | 90.23 | 11/20/2025 | 23:27:37 | -69.97, 4.46 | 90.23 | 2.02 | 5 |
| 12 | 11/21/2025 | 00:18:20 | 69.52, 172.49 | 89.33 | 11/21/2025 | 00:17:09 | 69.58, 171.57 | 89.39 | 36.71 | 71 |
| 13 | 11/23/2025 | 14:54:00 | 70.03, -47.15 | 90.40 | 11/23/2025 | 14:54:34 | 70.03, -47.19 | 90.40 | 1.66 | 34 |
| 14 | 11/23/2025 | 15:44:42 | -69.95, 120.30 | 89.68 | 11/23/2025 | 15:44:04 | -69.93, 120.30 | 89.70 | 2.36 | 38 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/10/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 11/10/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9