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: 8/19/2025
| 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 | 08/19/2025 | 14:03:39 | 70.26, -34.84 | 57.67 | 08/19/2025 | 14:04:51 | 70.19, -34.61 | 57.58 | 11.33 | 72 |
| 2 | 08/19/2025 | 14:54:19 | -70.03, 132.82 | 122.56 | 08/19/2025 | 14:54:22 | -70.02, 132.78 | 122.57 | 2.13 | 3 |
| 3 | 08/19/2025 | 15:45:02 | 69.89, -59.65 | 57.31 | 08/19/2025 | 15:43:49 | 69.92, -59.72 | 57.34 | 3.78 | 73 |
| 4 | 08/22/2025 | 06:20:31 | 70.11, 81.17 | 58.40 | 08/22/2025 | 06:21:22 | 70.09, 81.13 | 58.37 | 2.68 | 51 |
| 5 | 08/22/2025 | 07:11:13 | -69.99,-111.34 | 121.72 | 08/22/2025 | 07:10:52 | -69.98,-111.40 | 121.73 | 2.68 | 21 |
| 6 | 08/22/2025 | 08:01:40 | 69.00, 57.40 | 57.27 | 08/22/2025 | 08:00:34 | 69.04, 54.99 | 57.39 | 96.25 | 66 |
| 7 | 08/24/2025 | 22:37:25 | 70.07,-163.00 | 59.26 | 08/24/2025 | 22:37:51 | 70.08,-163.00 | 59.27 | 1.32 | 26 |
| 8 | 08/24/2025 | 23:28:07 | -69.95, 4.50 | 120.86 | 08/24/2025 | 23:27:21 | -69.97, 4.48 | 120.83 | 2.86 | 46 |
| 9 | 08/27/2025 | 14:03:39 | -70.38, 144.98 | 119.50 | 08/27/2025 | 14:04:50 | -70.28, 145.52 | 119.63 | 23.16 | 71 |
| 10 | 08/27/2025 | 14:54:18 | 70.03, -47.17 | 60.15 | 08/27/2025 | 14:54:19 | 70.06, -47.15 | 60.17 | 2.89 | 1 |
| 11 | 08/27/2025 | 15:45:00 | -69.91, 120.33 | 119.97 | 08/27/2025 | 15:43:50 | -69.90, 120.26 | 119.97 | 3.02 | 70 |
| 12 | 08/30/2025 | 06:20:29 | -70.14, -98.87 | 118.81 | 08/30/2025 | 06:21:21 | -70.13, -98.80 | 118.82 | 2.58 | 52 |
| 13 | 08/30/2025 | 07:11:12 | 70.00, 68.65 | 61.07 | 08/30/2025 | 07:10:48 | 70.02, 68.68 | 61.08 | 2.38 | 24 |
| 14 | 08/30/2025 | 08:01:39 | -69.08,-122.71 | 119.87 | 08/30/2025 | 08:00:32 | -69.14,-124.87 | 119.75 | 85.97 | 67 |
| 15 | 09/01/2025 | 22:37:22 | -70.06, 17.03 | 117.93 | 09/01/2025 | 22:37:50 | -70.08, 17.01 | 117.91 | 2.71 | 28 |
| 16 | 09/01/2025 | 23:28:06 | 69.97,-175.54 | 62.00 | 09/01/2025 | 23:27:17 | 69.96,-175.50 | 61.99 | 1.54 | 49 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/19/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/19/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8