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: 11/14/2025
| 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 | 11/15/2025 | 14:53:43 | -70.08, 132.83 | 91.38 | 11/15/2025 | 14:54:40 | -70.07, 132.83 | 91.40 | 1.37 | 57 |
| 2 | 11/15/2025 | 15:44:27 | 69.94, -59.64 | 88.49 | 11/15/2025 | 15:44:07 | 69.96, -59.68 | 88.51 | 3.27 | 20 |
| 3 | 11/15/2025 | 16:34:57 | -69.23, 108.70 | 92.21 | 11/15/2025 | 16:33:48 | -69.25, 106.98 | 92.21 | 67.82 | 69 |
| 4 | 11/18/2025 | 06:20:18 | 71.02, 79.76 | 90.21 | 11/18/2025 | 06:21:24 | 70.90, 82.31 | 90.09 | 93.67 | 66 |
| 5 | 11/18/2025 | 07:10:43 | -70.05,-111.37 | 90.76 | 11/18/2025 | 07:11:08 | -70.02,-111.35 | 90.79 | 3.35 | 25 |
| 6 | 11/18/2025 | 08:01:27 | 69.91, 56.15 | 89.11 | 11/18/2025 | 08:00:35 | 69.92, 56.14 | 89.11 | 0.51 | 52 |
| 7 | 11/20/2025 | 22:37:01 | 70.11,-163.02 | 89.91 | 11/20/2025 | 22:38:05 | 70.09,-163.00 | 89.89 | 2.52 | 64 |
| 8 | 11/20/2025 | 23:27:42 | -69.99, 4.49 | 90.21 | 11/20/2025 | 23:27:35 | -69.98, 4.49 | 90.22 | 0.30 | 7 |
| 9 | 11/21/2025 | 00:18:19 | 69.47, 172.55 | 89.29 | 11/21/2025 | 00:17:08 | 69.54, 171.52 | 89.35 | 40.92 | 71 |
| 10 | 11/23/2025 | 14:53:59 | 70.06, -47.18 | 90.43 | 11/23/2025 | 14:54:30 | 70.05, -47.15 | 90.42 | 1.31 | 31 |
| 11 | 11/23/2025 | 15:44:40 | -69.93, 120.33 | 89.70 | 11/23/2025 | 15:44:00 | -69.95, 120.33 | 89.69 | 1.96 | 40 |
| 12 | 11/26/2025 | 06:20:16 | -70.25, -99.03 | 88.86 | 11/26/2025 | 06:21:27 | -70.19, -98.70 | 88.93 | 14.30 | 71 |
| 13 | 11/26/2025 | 07:10:58 | 70.02, 68.64 | 90.91 | 11/26/2025 | 07:10:55 | 70.02, 68.70 | 90.91 | 2.34 | 3 |
| 14 | 11/26/2025 | 08:01:39 | -69.89,-123.84 | 89.22 | 11/26/2025 | 08:00:25 | -69.91,-123.82 | 89.19 | 3.34 | 74 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/14/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 11/14/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9