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: 8/18/2025
| 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 | 08/19/2025 | 14:03:39 | 70.25, -34.82 | 57.66 | 08/19/2025 | 14:04:51 | 70.20, -34.59 | 57.59 | 9.89 | 72 |
| 2 | 08/19/2025 | 14:54:19 | -70.02, 132.84 | 122.57 | 08/19/2025 | 14:54:22 | -70.03, 132.80 | 122.56 | 2.05 | 3 |
| 3 | 08/19/2025 | 15:45:02 | 69.88, -59.64 | 57.30 | 08/19/2025 | 15:43:50 | 69.88, -59.78 | 57.30 | 5.30 | 72 |
| 4 | 08/22/2025 | 06:20:31 | 70.10, 81.18 | 58.39 | 08/22/2025 | 06:21:22 | 70.10, 81.14 | 58.38 | 1.46 | 51 |
| 5 | 08/22/2025 | 07:11:13 | -69.98,-111.32 | 121.73 | 08/22/2025 | 07:10:52 | -69.99,-111.38 | 121.72 | 2.71 | 21 |
| 6 | 08/22/2025 | 08:01:40 | 68.99, 57.42 | 57.26 | 08/22/2025 | 08:00:34 | 69.05, 55.00 | 57.40 | 96.35 | 66 |
| 7 | 08/24/2025 | 22:37:24 | 70.06,-162.99 | 59.25 | 08/24/2025 | 22:37:50 | 70.09,-162.98 | 59.28 | 3.56 | 26 |
| 8 | 08/24/2025 | 23:28:07 | -69.99, 4.43 | 120.81 | 08/24/2025 | 23:27:20 | -69.98, 4.50 | 120.82 | 2.44 | 47 |
| 9 | 08/27/2025 | 14:03:39 | -70.37, 145.00 | 119.51 | 08/27/2025 | 14:04:50 | -70.29, 145.54 | 119.62 | 22.23 | 71 |
| 10 | 08/27/2025 | 14:54:18 | 70.03, -47.16 | 60.14 | 08/27/2025 | 14:54:20 | 70.01, -47.21 | 60.13 | 2.34 | 2 |
| 11 | 08/27/2025 | 15:45:00 | -69.90, 120.34 | 119.98 | 08/27/2025 | 15:43:50 | -69.91, 120.27 | 119.96 | 2.60 | 70 |
| 12 | 08/30/2025 | 06:20:29 | -70.13, -98.86 | 118.82 | 08/30/2025 | 06:21:21 | -70.14, -98.79 | 118.81 | 2.99 | 52 |
| 13 | 08/30/2025 | 07:11:12 | 69.99, 68.66 | 61.06 | 08/30/2025 | 07:10:49 | 69.97, 68.62 | 61.04 | 2.83 | 23 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/18/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/18/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8