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: 12/6/2025
| 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 | 12/06/2025 | 22:37:14 | -70.15, 16.97 | 87.35 | 12/06/2025 | 22:38:04 | -70.13, 17.01 | 87.37 | 2.32 | 50 |
| 2 | 12/06/2025 | 23:27:58 | 70.05,-175.57 | 92.55 | 12/06/2025 | 23:27:31 | 70.03,-175.49 | 92.53 | 3.69 | 27 |
| 3 | 12/07/2025 | 00:18:23 | -69.04, -6.78 | 88.47 | 12/07/2025 | 00:17:16 | -69.09, -9.12 | 88.40 | 93.28 | 67 |
| 4 | 12/09/2025 | 14:03:45 | 70.97, -35.91 | 93.77 | 12/09/2025 | 14:04:52 | 70.89, -33.62 | 93.66 | 83.89 | 67 |
| 5 | 12/09/2025 | 14:54:12 | -70.06, 132.86 | 87.16 | 12/09/2025 | 14:54:35 | -70.07, 132.80 | 87.16 | 2.33 | 23 |
| 6 | 12/09/2025 | 15:44:56 | 69.97, -59.69 | 92.75 | 12/09/2025 | 15:44:02 | 69.96, -59.70 | 92.74 | 1.07 | 54 |
| 7 | 12/12/2025 | 06:20:28 | 70.17, 81.14 | 93.17 | 12/12/2025 | 06:21:33 | 70.18, 81.21 | 93.18 | 3.00 | 65 |
| 8 | 12/12/2025 | 07:11:10 | -70.05,-111.35 | 86.96 | 12/12/2025 | 07:11:04 | -70.02,-111.39 | 86.98 | 2.99 | 6 |
| 9 | 12/12/2025 | 08:01:47 | 69.59, 56.64 | 92.58 | 12/12/2025 | 08:00:36 | 69.64, 55.72 | 92.65 | 36.04 | 71 |
| 10 | 12/14/2025 | 22:37:26 | 70.11,-163.01 | 93.29 | 12/14/2025 | 22:38:03 | 70.10,-163.04 | 93.26 | 2.23 | 37 |
| 11 | 12/14/2025 | 23:28:08 | -69.98, 4.50 | 86.85 | 12/14/2025 | 23:27:33 | -69.99, 4.45 | 86.84 | 2.03 | 35 |
| 12 | 12/17/2025 | 14:03:48 | -70.57, 144.73 | 86.14 | 12/17/2025 | 14:04:59 | -70.46, 145.74 | 86.26 | 39.22 | 71 |
| 13 | 12/17/2025 | 14:54:24 | 70.07, -47.18 | 93.36 | 12/17/2025 | 14:54:31 | 70.08, -47.18 | 93.36 | 1.04 | 7 |
| 14 | 12/17/2025 | 15:45:07 | -69.99, 120.25 | 86.73 | 12/17/2025 | 15:44:01 | -69.97, 120.31 | 86.74 | 2.66 | 66 |
| 15 | 12/20/2025 | 06:20:39 | -70.16, -98.87 | 86.49 | 12/20/2025 | 06:21:32 | -70.14, -98.85 | 86.52 | 2.74 | 53 |
| 16 | 12/20/2025 | 07:11:22 | 70.03, 68.63 | 93.38 | 12/20/2025 | 07:10:59 | 70.02, 68.63 | 93.37 | 1.44 | 23 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 12/6/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 12/06/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8