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: 11/10/2025
| 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 | 11/12/2025 | 22:36:42 | 70.84,-163.98 | 88.70 | 11/12/2025 | 22:37:50 | 70.76,-162.03 | 88.62 | 71.63 | 68 |
| 2 | 11/12/2025 | 23:27:11 | -70.08, 4.56 | 92.07 | 11/12/2025 | 23:27:30 | -70.10, 4.63 | 92.05 | 3.47 | 19 |
| 3 | 11/13/2025 | 00:17:55 | 69.95, 172.07 | 87.81 | 11/13/2025 | 00:16:58 | 69.94, 172.05 | 87.80 | 1.11 | 57 |
| 4 | 11/15/2025 | 14:53:30 | 70.15, -47.11 | 88.69 | 11/15/2025 | 14:54:28 | 70.14, -47.06 | 88.68 | 2.15 | 58 |
| 5 | 11/15/2025 | 15:44:11 | -70.01, 120.42 | 91.45 | 11/15/2025 | 15:43:58 | -70.03, 120.42 | 91.43 | 2.51 | 13 |
| 6 | 11/15/2025 | 16:34:44 | 69.30, -71.23 | 87.86 | 11/15/2025 | 16:33:35 | 69.37, -72.84 | 87.92 | 63.90 | 69 |
| 7 | 11/18/2025 | 07:10:29 | 70.09, 68.72 | 89.29 | 11/18/2025 | 07:10:54 | 70.09, 68.76 | 89.28 | 1.56 | 25 |
| 8 | 11/18/2025 | 08:01:11 | -70.00,-123.82 | 90.80 | 11/18/2025 | 08:00:24 | -69.98,-123.76 | 90.82 | 3.13 | 47 |
| 9 | 11/20/2025 | 22:36:45 | -70.16, 17.05 | 90.04 | 11/20/2025 | 22:37:53 | -70.17, 17.13 | 90.03 | 2.96 | 68 |
| 10 | 11/20/2025 | 23:27:29 | 70.05,-175.46 | 89.86 | 11/20/2025 | 23:27:20 | 70.06,-175.39 | 89.86 | 2.92 | 9 |
| 11 | 11/21/2025 | 00:18:06 | -69.69, -7.60 | 90.51 | 11/21/2025 | 00:16:54 | -69.73, -8.21 | 90.46 | 24.09 | 72 |
| 12 | 11/23/2025 | 14:53:45 | -70.12, 132.87 | 89.51 | 11/23/2025 | 14:54:19 | -70.11, 132.94 | 89.53 | 2.96 | 34 |
| 13 | 11/23/2025 | 15:44:28 | 69.97, -59.58 | 90.34 | 11/23/2025 | 15:43:46 | 69.99, -59.59 | 90.37 | 3.11 | 42 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/10/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/10/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8