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: 8/9/2025
| 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 | -70.27, 145.15 | 124.83 | 08/11/2025 | 14:04:50 | -70.21, 145.41 | 124.91 | 11.74 | 71 |
| 2 | 08/11/2025 | 14:54:20 | 70.02, -47.17 | 54.93 | 08/11/2025 | 14:54:18 | 70.05, -47.17 | 54.96 | 2.82 | 2 |
| 3 | 08/11/2025 | 15:45:02 | -69.90, 120.33 | 125.19 | 08/11/2025 | 15:43:48 | -69.94, 120.31 | 125.14 | 4.10 | 74 |
| 4 | 08/14/2025 | 06:20:31 | -70.10, -98.82 | 124.19 | 08/14/2025 | 06:21:22 | -70.11, -98.86 | 124.19 | 1.41 | 51 |
| 5 | 08/14/2025 | 07:11:15 | 70.02, 68.61 | 55.74 | 08/14/2025 | 07:10:49 | 70.00, 68.64 | 55.72 | 2.48 | 26 |
| 6 | 08/14/2025 | 08:01:41 | -69.05,-122.67 | 125.27 | 08/14/2025 | 08:00:34 | -69.07,-124.99 | 125.16 | 92.40 | 67 |
| 7 | 08/16/2025 | 22:37:26 | -70.10, 16.95 | 123.36 | 08/16/2025 | 22:37:52 | -70.10, 17.01 | 123.36 | 2.19 | 26 |
| 8 | 08/16/2025 | 23:28:09 | 69.97,-175.54 | 56.52 | 08/16/2025 | 23:27:19 | 69.99,-175.50 | 56.55 | 2.56 | 50 |
| 9 | 08/19/2025 | 14:03:40 | 70.28, -34.88 | 57.69 | 08/19/2025 | 14:04:51 | 70.23, -34.56 | 57.62 | 13.64 | 71 |
| 10 | 08/19/2025 | 14:54:20 | -70.05, 132.80 | 122.55 | 08/19/2025 | 14:54:22 | -70.07, 132.85 | 122.53 | 3.13 | 2 |
| 11 | 08/19/2025 | 15:45:03 | 69.92, -59.69 | 57.34 | 08/19/2025 | 15:43:50 | 69.90, -59.74 | 57.33 | 2.62 | 73 |
| 12 | 08/22/2025 | 06:20:31 | 70.13, 81.13 | 58.42 | 08/22/2025 | 06:21:21 | 70.12, 81.18 | 58.40 | 2.33 | 50 |
| 13 | 08/22/2025 | 07:11:13 | -70.00,-111.36 | 121.71 | 08/22/2025 | 07:10:51 | -70.02,-111.33 | 121.69 | 2.72 | 22 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/9/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/09/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8