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: 8/13/2025
| 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 | 08/14/2025 | 06:20:32 | -70.13, -98.87 | 124.16 | 08/14/2025 | 06:21:22 | -70.12, -98.83 | 124.17 | 1.49 | 50 |
| 2 | 08/14/2025 | 07:11:15 | 69.99, 68.66 | 55.71 | 08/14/2025 | 07:10:50 | 69.97, 68.59 | 55.69 | 3.37 | 25 |
| 3 | 08/14/2025 | 08:01:40 | -69.02,-122.63 | 125.29 | 08/14/2025 | 08:00:33 | -69.09,-124.97 | 125.14 | 93.01 | 67 |
| 4 | 08/16/2025 | 22:37:25 | -70.08, 16.99 | 123.38 | 08/16/2025 | 22:37:52 | -70.06, 16.95 | 123.40 | 2.23 | 27 |
| 5 | 08/16/2025 | 23:28:08 | 69.94,-175.49 | 56.49 | 08/16/2025 | 23:27:19 | 69.95,-175.55 | 56.52 | 2.67 | 49 |
| 6 | 08/19/2025 | 14:03:39 | 70.26, -34.83 | 57.67 | 08/19/2025 | 14:04:51 | 70.19, -34.61 | 57.58 | 11.12 | 72 |
| 7 | 08/19/2025 | 14:54:19 | -70.03, 132.83 | 122.57 | 08/19/2025 | 14:54:22 | -70.03, 132.80 | 122.57 | 1.53 | 3 |
| 8 | 08/19/2025 | 15:45:02 | 69.89, -59.65 | 57.31 | 08/19/2025 | 15:43:49 | 69.92, -59.71 | 57.35 | 4.07 | 73 |
| 9 | 08/22/2025 | 06:20:31 | 70.11, 81.17 | 58.40 | 08/22/2025 | 06:21:22 | 70.09, 81.13 | 58.37 | 2.62 | 51 |
| 10 | 08/22/2025 | 07:11:13 | -69.98,-111.33 | 121.73 | 08/22/2025 | 07:10:52 | -69.98,-111.39 | 121.72 | 2.31 | 21 |
| 11 | 08/22/2025 | 08:01:40 | 69.00, 57.40 | 57.27 | 08/22/2025 | 08:00:34 | 69.04, 54.99 | 57.39 | 96.21 | 66 |
| 12 | 08/24/2025 | 22:37:25 | 70.07,-163.00 | 59.26 | 08/24/2025 | 22:37:51 | 70.08,-163.00 | 59.27 | 0.73 | 26 |
| 13 | 08/24/2025 | 23:28:08 | -70.00, 4.43 | 120.81 | 08/24/2025 | 23:27:21 | -69.97, 4.48 | 120.83 | 3.27 | 47 |
| 14 | 08/27/2025 | 14:03:39 | -70.38, 144.98 | 119.51 | 08/27/2025 | 14:04:50 | -70.27, 145.52 | 119.63 | 23.11 | 71 |
| 15 | 08/27/2025 | 14:54:18 | 70.04, -47.18 | 60.16 | 08/27/2025 | 14:54:19 | 70.05, -47.16 | 60.16 | 1.42 | 1 |
| 16 | 08/27/2025 | 15:45:00 | -69.91, 120.33 | 119.97 | 08/27/2025 | 15:43:50 | -69.89, 120.26 | 119.98 | 3.37 | 70 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/13/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/13/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8