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: 8/14/2025
| 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 | 08/16/2025 | 22:37:25 | -70.09, 16.97 | 123.37 | 08/16/2025 | 22:37:51 | -70.10, 17.01 | 123.36 | 2.18 | 26 |
| 2 | 08/16/2025 | 23:28:08 | 69.95,-175.51 | 56.51 | 08/16/2025 | 23:27:19 | 69.94,-175.57 | 56.50 | 2.21 | 49 |
| 3 | 08/19/2025 | 14:03:39 | 70.27, -34.85 | 57.68 | 08/19/2025 | 14:04:50 | 70.24, -34.54 | 57.62 | 12.15 | 71 |
| 4 | 08/19/2025 | 14:54:19 | -70.04, 132.81 | 122.55 | 08/19/2025 | 14:54:22 | -70.02, 132.78 | 122.58 | 2.91 | 3 |
| 5 | 08/19/2025 | 15:45:02 | 69.90, -59.67 | 57.32 | 08/19/2025 | 15:43:49 | 69.91, -59.73 | 57.33 | 2.33 | 73 |
| 6 | 08/22/2025 | 06:20:31 | 70.12, 81.15 | 58.41 | 08/22/2025 | 06:21:21 | 70.13, 81.19 | 58.41 | 2.00 | 50 |
| 7 | 08/22/2025 | 07:11:13 | -70.00,-111.35 | 121.71 | 08/22/2025 | 07:10:51 | -70.03,-111.33 | 121.68 | 3.38 | 22 |
| 8 | 08/22/2025 | 08:01:40 | 69.01, 57.39 | 57.28 | 08/22/2025 | 08:00:34 | 69.03, 54.98 | 57.38 | 96.03 | 66 |
| 9 | 08/24/2025 | 22:37:25 | 70.08,-163.02 | 59.28 | 08/24/2025 | 22:37:51 | 70.07,-163.02 | 59.25 | 2.00 | 26 |
| 10 | 08/24/2025 | 23:28:07 | -69.96, 4.48 | 120.85 | 08/24/2025 | 23:27:21 | -69.96, 4.47 | 120.84 | 0.80 | 46 |
| 11 | 08/27/2025 | 14:03:38 | -70.34, 145.04 | 119.54 | 08/27/2025 | 14:04:50 | -70.26, 145.50 | 119.64 | 19.28 | 72 |
| 12 | 08/27/2025 | 14:54:18 | 70.05, -47.20 | 60.17 | 08/27/2025 | 14:54:19 | 70.04, -47.17 | 60.16 | 1.83 | 1 |
| 13 | 08/27/2025 | 15:45:00 | -69.92, 120.31 | 119.95 | 08/27/2025 | 15:43:49 | -69.94, 120.32 | 119.93 | 1.39 | 71 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/14/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/14/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8