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: 12/7/2025
| 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 | 12/09/2025 | 14:03:45 | 70.98, -35.93 | 93.78 | 12/09/2025 | 14:04:52 | 70.88, -33.63 | 93.65 | 84.24 | 67 |
| 2 | 12/09/2025 | 14:54:12 | -70.08, 132.84 | 87.15 | 12/09/2025 | 14:54:35 | -70.06, 132.78 | 87.17 | 2.90 | 23 |
| 3 | 12/09/2025 | 15:44:56 | 69.98, -59.71 | 92.76 | 12/09/2025 | 15:44:02 | 69.96, -59.72 | 92.74 | 3.05 | 54 |
| 4 | 12/12/2025 | 06:20:29 | 70.18, 81.13 | 93.18 | 12/12/2025 | 06:21:34 | 70.18, 81.20 | 93.18 | 2.92 | 65 |
| 5 | 12/12/2025 | 07:11:11 | -70.05,-111.37 | 86.95 | 12/12/2025 | 07:11:04 | -70.07,-111.32 | 86.93 | 2.84 | 7 |
| 6 | 12/12/2025 | 08:01:48 | 69.59, 56.63 | 92.59 | 12/12/2025 | 08:00:37 | 69.64, 55.72 | 92.64 | 35.57 | 71 |
| 7 | 12/14/2025 | 22:37:26 | 70.12,-163.02 | 93.29 | 12/14/2025 | 22:38:03 | 70.10,-163.03 | 93.27 | 1.61 | 37 |
| 8 | 12/14/2025 | 23:28:08 | -69.99, 4.49 | 86.84 | 12/14/2025 | 23:27:33 | -70.00, 4.46 | 86.84 | 1.53 | 35 |
| 9 | 12/17/2025 | 14:03:49 | -70.62, 144.64 | 86.08 | 12/17/2025 | 14:04:59 | -70.48, 145.76 | 86.24 | 44.28 | 70 |
| 10 | 12/17/2025 | 14:54:24 | 70.07, -47.18 | 93.36 | 12/17/2025 | 14:54:32 | 70.04, -47.23 | 93.33 | 3.13 | 8 |
| 11 | 12/17/2025 | 15:45:06 | -69.94, 120.33 | 86.78 | 12/17/2025 | 15:44:02 | -69.94, 120.26 | 86.78 | 2.80 | 64 |
| 12 | 12/20/2025 | 06:20:39 | -70.16, -98.87 | 86.50 | 12/20/2025 | 06:21:32 | -70.17, -98.80 | 86.49 | 3.22 | 53 |
| 13 | 12/20/2025 | 07:11:22 | 70.03, 68.64 | 93.38 | 12/20/2025 | 07:11:00 | 70.00, 68.60 | 93.35 | 3.01 | 22 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 12/7/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 12/07/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8