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: 1/20/2025
| 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 | 01/20/2025 | 22:37:08 | -70.16, 17.10 | 89.93 | 01/20/2025 | 22:37:49 | -70.17, 17.06 | 89.93 | 1.84 | 41 |
| 2 | 01/20/2025 | 23:27:53 | 70.09,-175.48 | 89.99 | 01/20/2025 | 23:27:16 | 70.07,-175.44 | 89.97 | 2.80 | 37 |
| 3 | 01/23/2025 | 14:03:27 | 70.93, -35.66 | 90.29 | 01/23/2025 | 14:04:35 | 70.83, -33.69 | 90.11 | 72.35 | 68 |
| 4 | 01/23/2025 | 14:53:55 | -70.12, 132.95 | 90.58 | 01/23/2025 | 14:54:16 | -70.12, 132.88 | 90.59 | 2.98 | 21 |
| 5 | 01/23/2025 | 15:44:39 | 70.00, -59.55 | 89.29 | 01/23/2025 | 15:43:43 | 70.01, -59.63 | 89.31 | 3.15 | 56 |
| 6 | 01/26/2025 | 06:20:01 | 70.23, 81.27 | 88.89 | 01/26/2025 | 06:21:11 | 70.24, 81.31 | 88.88 | 1.75 | 70 |
| 7 | 01/26/2025 | 07:10:42 | -70.10,-111.22 | 91.26 | 01/26/2025 | 07:10:41 | -70.12,-111.22 | 91.24 | 2.22 | 1 |
| 8 | 01/26/2025 | 08:01:23 | 69.82, 56.52 | 88.44 | 01/26/2025 | 08:00:10 | 69.90, 56.12 | 88.55 | 17.93 | 73 |
| 9 | 01/28/2025 | 22:36:46 | 70.17,-162.83 | 88.13 | 01/28/2025 | 22:37:35 | 70.19,-162.86 | 88.15 | 2.70 | 49 |
| 10 | 01/28/2025 | 23:27:28 | -70.10, 4.59 | 91.96 | 01/28/2025 | 23:27:05 | -70.08, 4.62 | 91.97 | 2.10 | 23 |
| 11 | 01/31/2025 | 14:53:33 | 70.18, -47.05 | 87.41 | 01/31/2025 | 14:53:59 | 70.15, -47.01 | 87.37 | 3.14 | 26 |
| 12 | 01/31/2025 | 15:44:14 | -70.05, 120.46 | 92.74 | 01/31/2025 | 15:43:29 | -70.04, 120.47 | 92.74 | 1.18 | 45 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 1/20/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 01/20/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8