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: 8/10/2025
| 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 | 08/11/2025 | 14:53:14 | -70.07, 132.80 | 125.01 | 08/11/2025 | 14:54:20 | -70.08, 132.86 | 125.02 | 2.60 | 66 |
| 2 | 08/11/2025 | 15:43:58 | 69.94, -59.70 | 54.87 | 08/11/2025 | 15:43:48 | 69.92, -59.71 | 54.84 | 2.75 | 10 |
| 3 | 08/11/2025 | 16:34:34 | -69.55, 108.20 | 125.54 | 08/11/2025 | 16:33:22 | -69.59, 107.47 | 125.46 | 28.80 | 72 |
| 4 | 08/14/2025 | 07:10:08 | -70.03,-111.36 | 124.25 | 08/14/2025 | 07:10:52 | -70.00,-111.36 | 124.28 | 2.91 | 44 |
| 5 | 08/14/2025 | 08:00:52 | 69.90, 56.13 | 55.64 | 08/14/2025 | 08:00:19 | 69.90, 56.14 | 55.63 | 0.81 | 33 |
| 6 | 08/16/2025 | 22:36:34 | 70.81,-164.15 | 57.41 | 08/16/2025 | 22:37:41 | 70.73,-162.05 | 57.25 | 77.31 | 67 |
| 7 | 08/16/2025 | 23:27:02 | -69.99, 4.48 | 123.45 | 08/16/2025 | 23:27:23 | -69.96, 4.46 | 123.48 | 3.01 | 21 |
| 8 | 08/17/2025 | 00:17:46 | 69.87, 171.96 | 56.44 | 08/17/2025 | 00:16:50 | 69.85, 171.96 | 56.43 | 1.85 | 56 |
| 9 | 08/19/2025 | 14:53:14 | 70.05, -47.15 | 57.47 | 08/19/2025 | 14:54:23 | 70.06, -47.15 | 57.47 | 1.41 | 69 |
| 10 | 08/19/2025 | 15:43:56 | -69.95, 120.31 | 122.63 | 08/19/2025 | 15:43:53 | -69.96, 120.33 | 122.63 | 1.00 | 3 |
| 11 | 08/19/2025 | 16:34:35 | 69.58, -71.83 | 57.00 | 08/19/2025 | 16:33:23 | 69.68, -72.40 | 57.13 | 25.20 | 72 |
| 12 | 08/22/2025 | 07:10:07 | 70.02, 68.66 | 58.33 | 08/22/2025 | 07:10:52 | 70.03, 68.69 | 58.32 | 1.25 | 45 |
| 13 | 08/22/2025 | 08:00:49 | -69.92,-123.87 | 121.77 | 08/22/2025 | 08:00:22 | -69.93,-123.82 | 121.77 | 1.87 | 27 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/10/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/10/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9