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: 12/2/2025
| 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 | 12/04/2025 | 06:20:29 | 70.11, 81.15 | 92.28 | 12/04/2025 | 06:21:40 | 70.12, 81.14 | 92.29 | 1.90 | 71 |
| 2 | 12/04/2025 | 07:11:11 | -70.03,-111.41 | 87.80 | 12/04/2025 | 07:11:10 | -70.01,-111.38 | 87.82 | 2.50 | 1 |
| 3 | 12/04/2025 | 08:01:52 | 69.74, 56.34 | 91.91 | 12/04/2025 | 08:00:39 | 69.80, 55.96 | 91.98 | 15.96 | 73 |
| 4 | 12/06/2025 | 22:37:28 | 70.08,-163.05 | 92.58 | 12/06/2025 | 22:38:09 | 70.09,-163.02 | 92.59 | 1.30 | 41 |
| 5 | 12/06/2025 | 23:28:10 | -70.00, 4.40 | 87.50 | 12/06/2025 | 23:27:39 | -69.98, 4.46 | 87.52 | 3.36 | 31 |
| 6 | 12/09/2025 | 14:03:52 | -70.71, 144.41 | 86.50 | 12/09/2025 | 14:05:01 | -70.63, 146.01 | 86.61 | 59.67 | 69 |
| 7 | 12/09/2025 | 14:54:25 | 70.01, -47.18 | 92.79 | 12/09/2025 | 14:54:37 | 70.03, -47.22 | 92.80 | 2.42 | 12 |
| 8 | 12/09/2025 | 15:45:07 | -69.93, 120.27 | 87.30 | 12/09/2025 | 15:44:07 | -69.92, 120.26 | 87.31 | 0.85 | 60 |
| 9 | 12/12/2025 | 06:20:40 | -70.12, -98.89 | 86.88 | 12/12/2025 | 06:21:38 | -70.11, -98.87 | 86.90 | 1.97 | 58 |
| 10 | 12/12/2025 | 07:11:24 | 70.00, 68.60 | 93.01 | 12/12/2025 | 07:11:05 | 69.99, 68.62 | 93.00 | 1.21 | 19 |
| 11 | 12/12/2025 | 08:01:54 | -69.28,-123.02 | 87.73 | 12/12/2025 | 08:00:45 | -69.34,-124.65 | 87.65 | 64.42 | 69 |
| 12 | 12/14/2025 | 22:37:38 | -70.06, 16.96 | 86.77 | 12/14/2025 | 22:38:06 | -70.05, 16.93 | 86.79 | 2.03 | 28 |
| 13 | 12/14/2025 | 23:28:22 | 69.95,-175.56 | 93.12 | 12/14/2025 | 23:27:33 | 69.93,-175.58 | 93.11 | 2.00 | 49 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 12/2/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 12/02/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9