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: 12/4/2025
| 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 | 22:37:13 | -70.12, 17.02 | 87.38 | 12/06/2025 | 22:38:03 | -70.14, 17.03 | 87.36 | 2.90 | 50 |
| 2 | 12/06/2025 | 23:27:57 | 70.02,-175.52 | 92.53 | 12/06/2025 | 23:27:30 | 70.04,-175.47 | 92.54 | 2.73 | 27 |
| 3 | 12/07/2025 | 00:18:22 | -69.01, -6.74 | 88.50 | 12/07/2025 | 00:17:16 | -69.05, -9.17 | 88.44 | 97.16 | 66 |
| 4 | 12/09/2025 | 14:03:44 | 70.95, -35.87 | 93.74 | 12/09/2025 | 14:04:51 | 70.86, -33.66 | 93.63 | 81.00 | 67 |
| 5 | 12/09/2025 | 14:54:12 | -70.09, 132.82 | 87.14 | 12/09/2025 | 14:54:33 | -70.10, 132.84 | 87.13 | 1.10 | 21 |
| 6 | 12/09/2025 | 15:44:56 | 70.00, -59.73 | 92.78 | 12/09/2025 | 15:44:00 | 69.99, -59.67 | 92.77 | 2.77 | 56 |
| 7 | 12/12/2025 | 06:20:28 | 70.15, 81.18 | 93.15 | 12/12/2025 | 06:21:32 | 70.15, 81.17 | 93.15 | 0.53 | 64 |
| 8 | 12/12/2025 | 07:11:10 | -70.02,-111.31 | 86.98 | 12/12/2025 | 07:11:02 | -70.04,-111.35 | 86.96 | 3.01 | 8 |
| 9 | 12/12/2025 | 08:01:46 | 69.51, 56.76 | 92.51 | 12/12/2025 | 08:00:36 | 69.54, 55.61 | 92.55 | 44.82 | 70 |
| 10 | 12/14/2025 | 22:37:26 | 70.09,-162.98 | 93.26 | 12/14/2025 | 22:38:00 | 70.09,-163.03 | 93.26 | 2.05 | 34 |
| 11 | 12/14/2025 | 23:28:08 | -70.01, 4.46 | 86.82 | 12/14/2025 | 23:27:29 | -69.98, 4.46 | 86.85 | 3.27 | 39 |
| 12 | 12/17/2025 | 14:03:44 | -70.39, 145.01 | 86.32 | 12/17/2025 | 14:04:56 | -70.30, 145.53 | 86.42 | 21.33 | 72 |
| 13 | 12/17/2025 | 14:54:23 | 70.05, -47.15 | 93.34 | 12/17/2025 | 14:54:25 | 70.08, -47.15 | 93.36 | 3.10 | 2 |
| 14 | 12/17/2025 | 15:45:06 | -69.97, 120.29 | 86.75 | 12/17/2025 | 15:43:55 | -69.97, 120.33 | 86.74 | 1.94 | 71 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 12/4/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 12/04/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8