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: 7/7/2025
| 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 | 07/07/2025 | 21:46:48 | -70.81, 28.53 | 131.64 | 07/07/2025 | 21:47:57 | -70.69, 30.26 | 131.84 | 64.81 | 69 |
| 2 | 07/07/2025 | 22:37:21 | 70.11,-163.04 | 47.62 | 07/07/2025 | 22:37:33 | 70.10,-162.97 | 47.60 | 2.79 | 12 |
| 3 | 07/07/2025 | 23:28:02 | -69.98, 4.48 | 132.52 | 07/07/2025 | 23:27:03 | -69.99, 4.51 | 132.50 | 1.34 | 59 |
| 4 | 07/10/2025 | 14:03:31 | -70.12, 145.41 | 132.05 | 07/10/2025 | 14:04:36 | -70.14, 145.33 | 132.04 | 3.67 | 65 |
| 5 | 07/10/2025 | 14:54:16 | 70.05, -47.18 | 47.88 | 07/10/2025 | 14:54:03 | 70.03, -47.18 | 47.87 | 1.87 | 13 |
| 6 | 07/10/2025 | 15:44:50 | -69.54, 120.89 | 132.64 | 07/10/2025 | 15:43:39 | -69.59, 119.84 | 132.54 | 41.01 | 71 |
| 7 | 07/13/2025 | 06:20:27 | -70.10, -98.81 | 131.69 | 07/13/2025 | 06:21:05 | -70.11, -98.82 | 131.69 | 0.94 | 38 |
| 8 | 07/13/2025 | 07:11:11 | 69.99, 68.68 | 48.20 | 07/13/2025 | 07:10:32 | 70.00, 68.67 | 48.22 | 1.55 | 39 |
| 9 | 07/15/2025 | 21:46:47 | 70.56,-151.08 | 49.21 | 07/15/2025 | 21:47:58 | 70.45,-150.07 | 49.05 | 39.33 | 71 |
| 10 | 07/15/2025 | 22:37:22 | -70.10, 16.97 | 131.28 | 07/15/2025 | 22:37:33 | -70.07, 17.01 | 131.30 | 2.84 | 11 |
| 11 | 07/15/2025 | 23:28:05 | 69.93,-175.48 | 48.56 | 07/15/2025 | 23:27:00 | 69.96,-175.50 | 48.60 | 3.18 | 65 |
| 12 | 07/18/2025 | 14:03:35 | 70.14, -34.65 | 49.23 | 07/18/2025 | 14:04:32 | 70.12, -34.66 | 49.20 | 2.21 | 57 |
| 13 | 07/18/2025 | 14:54:17 | -70.04, 132.83 | 130.88 | 07/18/2025 | 14:54:02 | -70.02, 132.83 | 130.89 | 1.62 | 15 |
| 14 | 07/18/2025 | 15:44:48 | 69.24, -58.70 | 48.30 | 07/18/2025 | 15:43:40 | 69.30, -60.52 | 48.44 | 71.58 | 68 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/7/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/07/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8