Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/15/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 08/16/2025 | 22:37:25 | -70.07, 17.00 | 123.39 | 08/16/2025 | 22:37:52 | -70.07, 16.96 | 123.39 | 1.34 | 27 |
| 2 | 08/16/2025 | 23:28:09 | 69.98,-175.56 | 56.54 | 08/16/2025 | 23:27:19 | 69.96,-175.53 | 56.52 | 2.24 | 50 |
| 3 | 08/19/2025 | 14:03:39 | 70.25, -34.82 | 57.65 | 08/19/2025 | 14:04:51 | 70.20, -34.59 | 57.59 | 9.81 | 72 |
| 4 | 08/19/2025 | 14:54:19 | -70.02, 132.85 | 122.58 | 08/19/2025 | 14:54:22 | -70.04, 132.81 | 122.56 | 2.59 | 3 |
| 5 | 08/19/2025 | 15:45:02 | 69.88, -59.64 | 57.30 | 08/19/2025 | 15:43:50 | 69.88, -59.77 | 57.30 | 5.26 | 72 |
| 6 | 08/22/2025 | 06:20:31 | 70.10, 81.18 | 58.38 | 08/22/2025 | 06:21:22 | 70.10, 81.15 | 58.38 | 1.50 | 51 |
| 7 | 08/22/2025 | 07:11:13 | -69.97,-111.31 | 121.74 | 08/22/2025 | 07:10:52 | -69.99,-111.37 | 121.71 | 3.19 | 21 |
| 8 | 08/22/2025 | 08:01:40 | 68.99, 57.42 | 57.26 | 08/22/2025 | 08:00:34 | 69.06, 55.01 | 57.41 | 96.35 | 66 |
| 9 | 08/24/2025 | 22:37:24 | 70.06,-162.98 | 59.25 | 08/24/2025 | 22:37:51 | 70.04,-163.06 | 59.23 | 3.63 | 27 |
| 10 | 08/24/2025 | 23:28:07 | -69.99, 4.44 | 120.82 | 08/24/2025 | 23:27:20 | -69.99, 4.50 | 120.81 | 2.41 | 47 |
| 11 | 08/27/2025 | 14:03:39 | -70.36, 145.00 | 119.52 | 08/27/2025 | 14:04:50 | -70.29, 145.54 | 119.62 | 21.86 | 71 |
| 12 | 08/27/2025 | 14:54:18 | 70.02, -47.16 | 60.14 | 08/27/2025 | 14:54:20 | 70.01, -47.21 | 60.13 | 2.17 | 2 |
| 13 | 08/27/2025 | 15:45:00 | -69.90, 120.35 | 119.98 | 08/27/2025 | 15:43:50 | -69.91, 120.28 | 119.96 | 2.97 | 70 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/15/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/15/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8