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: 7/3/2025
| 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 | 07/05/2025 | 06:20:25 | 70.11, 81.20 | 47.33 | 07/05/2025 | 06:21:04 | 70.11, 81.17 | 47.33 | 1.40 | 39 |
| 2 | 07/05/2025 | 07:11:07 | -70.03,-111.37 | 132.74 | 07/05/2025 | 07:10:34 | -70.00,-111.36 | 132.77 | 3.45 | 33 |
| 3 | 07/07/2025 | 21:46:48 | -70.80, 28.56 | 131.66 | 07/07/2025 | 21:47:57 | -70.71, 30.29 | 131.82 | 64.24 | 69 |
| 4 | 07/07/2025 | 22:37:21 | 70.09,-163.02 | 47.61 | 07/07/2025 | 22:37:33 | 70.12,-162.94 | 47.62 | 3.67 | 12 |
| 5 | 07/07/2025 | 23:28:02 | -69.96, 4.50 | 132.53 | 07/07/2025 | 23:27:04 | -69.95, 4.46 | 132.53 | 1.87 | 58 |
| 6 | 07/10/2025 | 14:03:32 | -70.15, 145.35 | 132.01 | 07/10/2025 | 14:04:36 | -70.16, 145.36 | 132.02 | 0.90 | 64 |
| 7 | 07/10/2025 | 14:54:16 | 70.03, -47.16 | 47.87 | 07/10/2025 | 14:54:03 | 70.05, -47.15 | 47.89 | 1.74 | 13 |
| 8 | 07/10/2025 | 15:44:49 | -69.52, 120.91 | 132.66 | 07/10/2025 | 15:43:38 | -69.62, 119.88 | 132.52 | 41.50 | 71 |
| 9 | 07/13/2025 | 06:20:26 | -70.09, -98.79 | 131.70 | 07/13/2025 | 06:21:05 | -70.08, -98.86 | 131.71 | 2.90 | 39 |
| 10 | 07/13/2025 | 07:11:10 | 69.98, 68.69 | 48.19 | 07/13/2025 | 07:10:32 | 69.97, 68.62 | 48.19 | 2.82 | 38 |
| 11 | 07/15/2025 | 21:46:48 | 70.61,-151.15 | 49.26 | 07/15/2025 | 21:47:58 | 70.48,-150.04 | 49.08 | 43.77 | 70 |
| 12 | 07/15/2025 | 22:37:22 | -70.08, 16.99 | 131.29 | 07/15/2025 | 22:37:33 | -70.10, 17.05 | 131.28 | 3.34 | 11 |
| 13 | 07/15/2025 | 23:28:06 | 69.98,-175.54 | 48.61 | 07/15/2025 | 23:27:00 | 69.99,-175.47 | 48.62 | 3.01 | 66 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/3/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/03/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8