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: 10/10/2025
| 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 | 10/11/2025 | 22:36:52 | 70.12,-162.93 | 77.40 | 10/11/2025 | 22:38:03 | 70.15,-162.95 | 77.43 | 3.12 | 71 |
| 2 | 10/11/2025 | 23:27:33 | -70.01, 4.55 | 102.70 | 10/11/2025 | 23:27:33 | -70.03, 4.53 | 102.68 | 2.67 | 0 |
| 3 | 10/12/2025 | 00:18:15 | 69.76, 172.24 | 77.07 | 10/12/2025 | 00:17:02 | 69.82, 171.87 | 77.13 | 15.50 | 73 |
| 4 | 10/14/2025 | 14:53:43 | 70.09, -47.10 | 78.37 | 10/14/2025 | 14:54:33 | 70.10, -47.13 | 78.38 | 1.73 | 50 |
| 5 | 10/14/2025 | 15:44:24 | -69.98, 120.38 | 101.73 | 10/14/2025 | 15:44:03 | -69.99, 120.35 | 101.72 | 1.91 | 21 |
| 6 | 10/14/2025 | 16:34:52 | 68.98, -70.87 | 77.29 | 10/14/2025 | 16:33:46 | 69.00, -73.34 | 77.31 | 98.22 | 66 |
| 7 | 10/17/2025 | 07:10:33 | 70.07, 68.72 | 79.34 | 10/17/2025 | 07:11:01 | 70.09, 68.74 | 79.36 | 2.44 | 28 |
| 8 | 10/17/2025 | 08:01:14 | -69.96,-123.79 | 100.77 | 10/17/2025 | 08:00:31 | -69.99,-123.78 | 100.74 | 3.02 | 43 |
| 9 | 10/19/2025 | 22:36:47 | -70.56, 16.42 | 99.22 | 10/19/2025 | 22:37:58 | -70.44, 17.48 | 99.34 | 41.62 | 71 |
| 10 | 10/19/2025 | 23:27:24 | 70.06,-175.48 | 80.29 | 10/19/2025 | 23:27:30 | 70.05,-175.43 | 80.29 | 1.89 | 6 |
| 11 | 10/20/2025 | 00:18:05 | -69.94, -7.98 | 99.81 | 10/20/2025 | 00:17:00 | -69.95, -7.94 | 99.81 | 1.74 | 65 |
| 12 | 10/22/2025 | 14:53:30 | -70.14, 132.89 | 98.69 | 10/22/2025 | 14:54:32 | -70.11, 132.89 | 98.72 | 3.18 | 62 |
| 13 | 10/22/2025 | 15:44:14 | 70.00, -59.60 | 81.19 | 10/22/2025 | 15:43:59 | 69.99, -59.63 | 81.18 | 1.57 | 15 |
| 14 | 10/22/2025 | 16:34:47 | -69.46, 108.52 | 99.34 | 10/22/2025 | 16:33:36 | -69.51, 107.33 | 99.30 | 46.36 | 71 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/10/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/10/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8