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: 8/15/2025
| 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 | 08/16/2025 | 22:36:34 | 70.82,-164.15 | 57.41 | 08/16/2025 | 22:37:41 | 70.73,-162.05 | 57.25 | 77.56 | 67 |
| 2 | 08/16/2025 | 23:27:02 | -70.00, 4.46 | 123.44 | 08/16/2025 | 23:27:22 | -70.01, 4.53 | 123.43 | 3.05 | 20 |
| 3 | 08/17/2025 | 00:17:46 | 69.87, 171.96 | 56.44 | 08/17/2025 | 00:16:50 | 69.86, 171.96 | 56.43 | 1.92 | 56 |
| 4 | 08/19/2025 | 14:53:14 | 70.05, -47.16 | 57.47 | 08/19/2025 | 14:54:23 | 70.07, -47.14 | 57.48 | 2.40 | 69 |
| 5 | 08/19/2025 | 15:43:56 | -69.96, 120.29 | 122.62 | 08/19/2025 | 15:43:53 | -69.96, 120.34 | 122.62 | 1.64 | 3 |
| 6 | 08/19/2025 | 16:34:36 | 69.63, -71.91 | 57.05 | 08/19/2025 | 16:33:23 | 69.69, -72.39 | 57.14 | 19.89 | 73 |
| 7 | 08/22/2025 | 07:10:08 | 70.03, 68.66 | 58.33 | 08/22/2025 | 07:10:54 | 70.00, 68.64 | 58.29 | 3.15 | 46 |
| 8 | 08/22/2025 | 08:00:49 | -69.88,-123.80 | 121.82 | 08/22/2025 | 08:00:24 | -69.89,-123.88 | 121.80 | 3.17 | 25 |
| 9 | 08/24/2025 | 23:27:00 | 69.95,-175.45 | 59.16 | 08/24/2025 | 23:27:23 | 69.96,-175.53 | 59.17 | 3.06 | 23 |
| 10 | 08/25/2025 | 00:17:42 | -69.85, -7.99 | 120.94 | 08/25/2025 | 00:16:53 | -69.86, -8.04 | 120.93 | 2.11 | 49 |
| 11 | 08/27/2025 | 14:53:13 | -70.20, 132.64 | 119.68 | 08/27/2025 | 14:54:24 | -70.13, 132.95 | 119.76 | 13.66 | 71 |
| 12 | 08/27/2025 | 15:43:54 | 69.94, -59.65 | 60.07 | 08/27/2025 | 15:43:52 | 69.97, -59.64 | 60.10 | 2.94 | 2 |
| 13 | 08/27/2025 | 16:34:36 | -69.83, 107.82 | 120.03 | 08/27/2025 | 16:33:22 | -69.86, 107.85 | 119.99 | 3.22 | 74 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/15/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/15/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9