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: 12/5/2025
| 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 | -70.14, 16.99 | 87.36 | 12/06/2025 | 22:38:04 | -70.14, 17.03 | 87.37 | 1.50 | 50 |
| 2 | 12/06/2025 | 23:27:58 | 70.04,-175.56 | 92.55 | 12/06/2025 | 23:27:31 | 70.04,-175.48 | 92.54 | 3.10 | 27 |
| 3 | 12/07/2025 | 00:18:23 | -69.03, -6.77 | 88.48 | 12/07/2025 | 00:17:16 | -69.10, -9.11 | 88.39 | 93.40 | 67 |
| 4 | 12/09/2025 | 14:03:45 | 71.02, -35.99 | 93.82 | 12/09/2025 | 14:04:51 | 70.90, -33.61 | 93.67 | 87.50 | 66 |
| 5 | 12/09/2025 | 14:54:11 | -70.06, 132.87 | 87.17 | 12/09/2025 | 14:54:34 | -70.08, 132.81 | 87.15 | 3.17 | 23 |
| 6 | 12/09/2025 | 15:44:55 | 69.97, -59.68 | 92.75 | 12/09/2025 | 15:44:01 | 69.97, -59.69 | 92.75 | 0.79 | 54 |
| 7 | 12/12/2025 | 06:20:28 | 70.16, 81.15 | 93.17 | 12/12/2025 | 06:21:34 | 70.14, 81.14 | 93.13 | 3.11 | 66 |
| 8 | 12/12/2025 | 07:11:10 | -70.04,-111.34 | 86.97 | 12/12/2025 | 07:11:04 | -70.03,-111.38 | 86.97 | 1.73 | 6 |
| 9 | 12/12/2025 | 08:01:47 | 69.58, 56.65 | 92.58 | 12/12/2025 | 08:00:36 | 69.64, 55.73 | 92.65 | 36.35 | 71 |
| 10 | 12/14/2025 | 22:37:26 | 70.11,-163.00 | 93.28 | 12/14/2025 | 22:38:03 | 70.10,-163.03 | 93.27 | 1.17 | 37 |
| 11 | 12/14/2025 | 23:28:08 | -69.98, 4.51 | 86.86 | 12/14/2025 | 23:27:33 | -70.00, 4.46 | 86.84 | 3.08 | 35 |
| 12 | 12/17/2025 | 14:03:48 | -70.56, 144.74 | 86.15 | 12/17/2025 | 14:04:59 | -70.47, 145.75 | 86.26 | 38.57 | 71 |
| 13 | 12/17/2025 | 14:54:24 | 70.06, -47.17 | 93.35 | 12/17/2025 | 14:54:31 | 70.08, -47.17 | 93.37 | 2.49 | 7 |
| 14 | 12/17/2025 | 15:45:07 | -69.98, 120.27 | 86.74 | 12/17/2025 | 15:44:01 | -69.98, 120.32 | 86.74 | 1.95 | 66 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 12/5/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 12/05/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8