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: 7/30/2025
| 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 | 07/31/2025 | 21:46:55 | 70.78,-151.45 | 52.79 | 07/31/2025 | 21:48:03 | 70.69,-149.73 | 52.63 | 64.11 | 68 |
| 2 | 07/31/2025 | 22:37:26 | -70.09, 16.96 | 127.93 | 07/31/2025 | 22:37:42 | -70.09, 17.02 | 127.95 | 2.18 | 16 |
| 3 | 07/31/2025 | 23:28:09 | 69.95,-175.50 | 51.92 | 07/31/2025 | 23:27:10 | 69.93,-175.56 | 51.92 | 2.93 | 59 |
| 4 | 08/03/2025 | 14:03:37 | 70.13, -34.64 | 52.79 | 08/03/2025 | 14:04:41 | 70.11, -34.69 | 52.76 | 2.89 | 64 |
| 5 | 08/03/2025 | 14:54:19 | -70.01, 132.85 | 127.33 | 08/03/2025 | 14:54:11 | -70.00, 132.78 | 127.34 | 2.84 | 8 |
| 6 | 08/03/2025 | 15:44:55 | 69.50, -59.08 | 52.15 | 08/03/2025 | 15:43:44 | 69.56, -60.18 | 52.26 | 43.36 | 71 |
| 7 | 08/06/2025 | 06:20:32 | 70.11, 81.15 | 53.49 | 08/06/2025 | 06:21:09 | 70.12, 81.20 | 53.49 | 1.80 | 37 |
| 8 | 08/06/2025 | 07:11:14 | -69.99,-111.34 | 126.63 | 08/06/2025 | 07:10:39 | -70.01,-111.32 | 126.61 | 2.30 | 35 |
| 9 | 08/08/2025 | 21:46:53 | -70.70, 28.68 | 125.15 | 08/08/2025 | 21:48:03 | -70.60, 30.15 | 125.32 | 55.47 | 70 |
| 10 | 08/08/2025 | 22:37:26 | 70.05,-162.98 | 54.18 | 08/08/2025 | 22:37:38 | 70.05,-163.01 | 54.17 | 1.20 | 12 |
| 11 | 08/08/2025 | 23:28:08 | -69.92, 4.53 | 125.95 | 08/08/2025 | 23:27:08 | -69.94, 4.48 | 125.92 | 3.08 | 60 |
| 12 | 08/11/2025 | 14:03:37 | -70.12, 145.38 | 124.98 | 08/11/2025 | 14:04:39 | -70.13, 145.36 | 124.98 | 1.81 | 62 |
| 13 | 08/11/2025 | 14:54:20 | 69.99, -47.12 | 54.90 | 08/11/2025 | 14:54:06 | 70.01, -47.16 | 54.92 | 3.24 | 14 |
| 14 | 08/11/2025 | 15:44:54 | -69.44, 121.02 | 125.67 | 08/11/2025 | 15:43:44 | -69.47, 119.72 | 125.58 | 50.57 | 70 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/30/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/30/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8