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: 8/11/2025
| 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 | 08/11/2025 | 14:03:39 | -70.24, 145.20 | 124.86 | 08/11/2025 | 14:04:51 | -70.18, 145.37 | 124.93 | 8.95 | 72 |
| 2 | 08/11/2025 | 14:54:21 | 70.04, -47.20 | 54.95 | 08/11/2025 | 14:54:19 | 70.03, -47.21 | 54.94 | 1.93 | 2 |
| 3 | 08/11/2025 | 15:45:02 | -69.87, 120.38 | 125.22 | 08/11/2025 | 15:43:49 | -69.91, 120.27 | 125.16 | 6.09 | 73 |
| 4 | 08/14/2025 | 06:20:31 | -70.12, -98.86 | 124.16 | 08/14/2025 | 06:21:21 | -70.13, -98.82 | 124.17 | 1.63 | 50 |
| 5 | 08/14/2025 | 07:11:14 | 69.99, 68.66 | 55.71 | 08/14/2025 | 07:10:49 | 69.97, 68.60 | 55.69 | 2.94 | 25 |
| 6 | 08/14/2025 | 08:01:40 | -69.02,-122.63 | 125.30 | 08/14/2025 | 08:00:33 | -69.09,-124.96 | 125.13 | 93.07 | 67 |
| 7 | 08/16/2025 | 22:37:25 | -70.07, 17.00 | 123.39 | 08/16/2025 | 22:37:52 | -70.06, 16.96 | 123.40 | 1.68 | 27 |
| 8 | 08/16/2025 | 23:28:08 | 69.94,-175.49 | 56.49 | 08/16/2025 | 23:27:19 | 69.95,-175.55 | 56.51 | 2.93 | 49 |
| 9 | 08/19/2025 | 14:03:39 | 70.25, -34.83 | 57.66 | 08/19/2025 | 14:04:51 | 70.18, -34.61 | 57.58 | 11.06 | 72 |
| 10 | 08/19/2025 | 14:54:19 | -70.02, 132.84 | 122.57 | 08/19/2025 | 14:54:22 | -70.03, 132.79 | 122.57 | 2.06 | 3 |
| 11 | 08/19/2025 | 15:45:02 | 69.89, -59.65 | 57.30 | 08/19/2025 | 15:43:49 | 69.91, -59.72 | 57.34 | 3.99 | 73 |
| 12 | 08/22/2025 | 06:20:31 | 70.10, 81.17 | 58.39 | 08/22/2025 | 06:21:21 | 70.13, 81.19 | 58.41 | 2.57 | 50 |
| 13 | 08/22/2025 | 07:11:14 | -70.03,-111.40 | 121.68 | 08/22/2025 | 07:10:51 | -70.02,-111.33 | 121.69 | 2.74 | 23 |
| 14 | 08/22/2025 | 08:01:40 | 68.99, 57.41 | 57.26 | 08/22/2025 | 08:00:34 | 69.03, 54.97 | 57.38 | 97.12 | 66 |
| 15 | 08/24/2025 | 22:37:24 | 70.07,-163.00 | 59.26 | 08/24/2025 | 22:37:50 | 70.05,-163.04 | 59.24 | 2.45 | 26 |
| 16 | 08/24/2025 | 23:28:06 | -69.94, 4.51 | 120.87 | 08/24/2025 | 23:27:20 | -69.95, 4.45 | 120.85 | 2.78 | 46 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/11/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/11/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8