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: 8/17/2025
| 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 | 14:03:40 | 70.28, -34.87 | 57.69 | 08/19/2025 | 14:04:51 | 70.22, -34.57 | 57.61 | 13.34 | 71 |
| 2 | 08/19/2025 | 14:54:20 | -70.05, 132.79 | 122.54 | 08/19/2025 | 14:54:22 | -70.05, 132.83 | 122.54 | 1.43 | 2 |
| 3 | 08/19/2025 | 15:45:02 | 69.92, -59.69 | 57.33 | 08/19/2025 | 15:43:49 | 69.90, -59.75 | 57.32 | 3.29 | 73 |
| 4 | 08/22/2025 | 06:20:31 | 70.13, 81.13 | 58.42 | 08/22/2025 | 06:21:21 | 70.12, 81.17 | 58.40 | 2.08 | 50 |
| 5 | 08/22/2025 | 07:11:13 | -70.01,-111.37 | 121.70 | 08/22/2025 | 07:10:51 | -70.01,-111.35 | 121.70 | 0.66 | 22 |
| 6 | 08/22/2025 | 08:01:40 | 69.02, 57.37 | 57.29 | 08/22/2025 | 08:00:33 | 69.07, 55.03 | 57.42 | 93.29 | 67 |
| 7 | 08/24/2025 | 22:37:24 | 70.04,-162.96 | 59.23 | 08/24/2025 | 22:37:51 | 70.06,-163.03 | 59.25 | 3.58 | 27 |
| 8 | 08/24/2025 | 23:28:07 | -69.97, 4.47 | 120.84 | 08/24/2025 | 23:27:21 | -69.95, 4.45 | 120.85 | 2.07 | 46 |
| 9 | 08/27/2025 | 14:03:39 | -70.35, 145.03 | 119.54 | 08/27/2025 | 14:04:51 | -70.25, 145.49 | 119.65 | 19.94 | 72 |
| 10 | 08/27/2025 | 14:54:19 | 70.06, -47.21 | 60.18 | 08/27/2025 | 14:54:20 | 70.03, -47.18 | 60.15 | 2.68 | 1 |
| 11 | 08/27/2025 | 15:45:01 | -69.93, 120.30 | 119.95 | 08/27/2025 | 15:43:50 | -69.93, 120.30 | 119.94 | 0.39 | 71 |
| 12 | 08/30/2025 | 06:20:29 | -70.10, -98.82 | 118.85 | 08/30/2025 | 06:21:22 | -70.11, -98.83 | 118.85 | 0.85 | 53 |
| 13 | 08/30/2025 | 07:11:12 | 69.97, 68.69 | 61.03 | 08/30/2025 | 07:10:49 | 69.99, 68.65 | 61.06 | 3.17 | 23 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/17/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/17/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8