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: 7/29/2025
| 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 | 07/29/2025 | 06:20:31 | -70.12, -98.85 | 128.56 | 07/29/2025 | 06:21:13 | -70.10, -98.85 | 128.59 | 2.41 | 42 |
| 2 | 07/29/2025 | 07:11:15 | 70.02, 68.61 | 51.35 | 07/29/2025 | 07:10:40 | 70.00, 68.65 | 51.33 | 3.22 | 35 |
| 3 | 07/31/2025 | 21:46:55 | 70.78,-151.45 | 52.79 | 07/31/2025 | 21:48:03 | 70.69,-149.73 | 52.63 | 63.99 | 68 |
| 4 | 07/31/2025 | 22:37:26 | -70.09, 16.97 | 127.94 | 07/31/2025 | 22:37:42 | -70.09, 17.02 | 127.95 | 1.99 | 16 |
| 5 | 07/31/2025 | 23:28:09 | 69.94,-175.50 | 51.92 | 07/31/2025 | 23:27:10 | 69.93,-175.56 | 51.92 | 2.92 | 59 |
| 6 | 08/03/2025 | 14:03:37 | 70.13, -34.64 | 52.79 | 08/03/2025 | 14:04:41 | 70.11, -34.70 | 52.76 | 3.13 | 64 |
| 7 | 08/03/2025 | 14:54:19 | -70.01, 132.86 | 127.33 | 08/03/2025 | 14:54:11 | -70.00, 132.78 | 127.34 | 3.05 | 8 |
| 8 | 08/03/2025 | 15:44:55 | 69.50, -59.07 | 52.14 | 08/03/2025 | 15:43:44 | 69.56, -60.18 | 52.26 | 43.63 | 71 |
| 9 | 08/06/2025 | 06:20:32 | 70.11, 81.16 | 53.49 | 08/06/2025 | 06:21:09 | 70.11, 81.19 | 53.48 | 1.28 | 37 |
| 10 | 08/06/2025 | 07:11:14 | -69.99,-111.34 | 126.64 | 08/06/2025 | 07:10:39 | -70.00,-111.33 | 126.62 | 1.99 | 35 |
| 11 | 08/08/2025 | 21:46:53 | -70.70, 28.69 | 125.15 | 08/08/2025 | 21:48:03 | -70.59, 30.13 | 125.33 | 54.72 | 70 |
| 12 | 08/08/2025 | 22:37:26 | 70.05,-162.97 | 54.17 | 08/08/2025 | 22:37:38 | 70.03,-163.03 | 54.16 | 2.36 | 12 |
| 13 | 08/08/2025 | 23:28:08 | -69.92, 4.54 | 125.96 | 08/08/2025 | 23:27:08 | -69.93, 4.46 | 125.93 | 3.38 | 60 |
| 14 | 08/11/2025 | 14:03:37 | -70.11, 145.39 | 124.99 | 08/11/2025 | 14:04:39 | -70.11, 145.33 | 125.00 | 2.25 | 62 |
| 15 | 08/11/2025 | 14:54:20 | 69.98, -47.11 | 54.89 | 08/11/2025 | 14:54:06 | 70.00, -47.19 | 54.91 | 3.30 | 14 |
| 16 | 08/11/2025 | 15:44:54 | -69.43, 121.03 | 125.68 | 08/11/2025 | 15:43:44 | -69.46, 119.70 | 125.60 | 51.81 | 70 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/29/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/29/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8