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: 7/26/2025
| 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 | 07/26/2025 | 14:03:36 | -70.13, 145.36 | 129.16 | 07/26/2025 | 14:04:44 | -70.12, 145.30 | 129.18 | 2.43 | 68 |
| 2 | 07/26/2025 | 14:54:20 | 70.03, -47.17 | 50.74 | 07/26/2025 | 14:54:11 | 70.02, -47.20 | 50.73 | 1.28 | 9 |
| 3 | 07/26/2025 | 15:44:57 | -69.66, 120.69 | 129.64 | 07/26/2025 | 15:43:45 | -69.69, 119.97 | 129.58 | 27.98 | 72 |
| 4 | 07/29/2025 | 06:20:30 | -70.09, -98.81 | 128.59 | 07/29/2025 | 06:21:13 | -70.08, -98.88 | 128.61 | 3.12 | 43 |
| 5 | 07/29/2025 | 07:11:14 | 70.00, 68.65 | 51.32 | 07/29/2025 | 07:10:40 | 69.97, 68.62 | 51.30 | 3.03 | 34 |
| 6 | 07/31/2025 | 21:46:54 | 70.76,-151.41 | 52.76 | 07/31/2025 | 21:48:03 | 70.67,-149.76 | 52.60 | 61.21 | 69 |
| 7 | 07/31/2025 | 22:37:25 | -70.06, 17.01 | 127.97 | 07/31/2025 | 22:37:42 | -70.07, 16.99 | 127.96 | 1.17 | 17 |
| 8 | 07/31/2025 | 23:28:09 | 69.97,-175.54 | 51.95 | 07/31/2025 | 23:27:09 | 69.96,-175.52 | 51.95 | 1.59 | 60 |
| 9 | 08/03/2025 | 14:03:38 | 70.15, -34.68 | 52.81 | 08/03/2025 | 14:04:41 | 70.14, -34.65 | 52.79 | 1.59 | 63 |
| 10 | 08/03/2025 | 14:54:20 | -70.03, 132.82 | 127.31 | 08/03/2025 | 14:54:11 | -70.04, 132.84 | 127.30 | 1.06 | 9 |
| 11 | 08/03/2025 | 15:44:55 | 69.47, -59.03 | 52.11 | 08/03/2025 | 15:43:45 | 69.54, -60.21 | 52.24 | 46.38 | 70 |
| 12 | 08/06/2025 | 06:20:32 | 70.08, 81.20 | 53.46 | 08/06/2025 | 06:21:10 | 70.09, 81.17 | 53.46 | 1.85 | 38 |
| 13 | 08/06/2025 | 07:11:15 | -70.01,-111.37 | 126.61 | 08/06/2025 | 07:10:40 | -69.99,-111.34 | 126.63 | 1.94 | 35 |
| 14 | 08/08/2025 | 21:46:53 | -70.72, 28.66 | 125.13 | 08/08/2025 | 21:48:02 | -70.63, 30.20 | 125.28 | 57.59 | 69 |
| 15 | 08/08/2025 | 22:37:26 | 70.07,-163.00 | 54.19 | 08/08/2025 | 22:37:37 | 70.08,-162.96 | 54.20 | 2.10 | 11 |
| 16 | 08/08/2025 | 23:28:08 | -69.93, 4.51 | 125.94 | 08/08/2025 | 23:27:08 | -69.92, 4.45 | 125.94 | 2.53 | 60 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/26/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/26/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8