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: 5/11/2025
| 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 | 05/12/2025 | 22:36:41 | -70.14, 17.09 | 128.32 | 05/12/2025 | 22:37:12 | -70.14, 17.07 | 128.33 | 1.12 | 31 |
| 2 | 05/12/2025 | 23:27:25 | 70.02,-175.42 | 51.55 | 05/12/2025 | 23:26:39 | 70.04,-175.43 | 51.57 | 1.37 | 46 |
| 3 | 05/15/2025 | 14:03:00 | 70.38, -34.85 | 51.30 | 05/15/2025 | 14:04:11 | 70.29, -34.46 | 51.19 | 17.55 | 71 |
| 4 | 05/15/2025 | 14:53:39 | -70.13, 132.86 | 128.97 | 05/15/2025 | 14:53:42 | -70.13, 132.93 | 128.98 | 2.97 | 3 |
| 5 | 05/15/2025 | 15:44:22 | 69.96, -59.57 | 50.85 | 05/15/2025 | 15:43:10 | 69.97, -59.65 | 50.86 | 3.09 | 72 |
| 6 | 05/18/2025 | 06:19:53 | 70.17, 81.25 | 50.47 | 05/18/2025 | 06:20:42 | 70.14, 81.21 | 50.44 | 3.02 | 49 |
| 7 | 05/18/2025 | 07:10:35 | -70.08,-111.30 | 129.63 | 05/18/2025 | 07:10:11 | -70.09,-111.23 | 129.62 | 2.93 | 24 |
| 8 | 05/20/2025 | 22:36:50 | 70.12,-162.92 | 49.86 | 05/20/2025 | 22:37:11 | 70.14,-162.91 | 49.88 | 2.52 | 21 |
| 9 | 05/20/2025 | 23:27:32 | -70.03, 4.54 | 130.24 | 05/20/2025 | 23:26:41 | -70.04, 4.57 | 130.24 | 1.57 | 51 |
| 10 | 05/23/2025 | 14:03:03 | -70.19, 145.42 | 130.58 | 05/23/2025 | 14:04:14 | -70.17, 145.37 | 130.61 | 3.02 | 71 |
| 11 | 05/23/2025 | 14:53:47 | 70.07, -47.09 | 49.29 | 05/23/2025 | 14:53:41 | 70.06, -47.14 | 49.27 | 2.68 | 6 |
| 12 | 05/23/2025 | 15:44:26 | -69.83, 120.60 | 130.97 | 05/23/2025 | 15:43:13 | -69.85, 120.19 | 130.94 | 15.69 | 73 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 5/11/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 05/11/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8