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: 5/16/2025
| 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 | 05/18/2025 | 06:19:53 | 70.17, 81.24 | 50.48 | 05/18/2025 | 06:20:41 | 70.20, 81.28 | 50.49 | 3.06 | 48 |
| 2 | 05/18/2025 | 07:10:35 | -70.09,-111.32 | 129.62 | 05/18/2025 | 07:10:11 | -70.08,-111.24 | 129.63 | 2.88 | 24 |
| 3 | 05/20/2025 | 21:46:23 | -71.14, 28.12 | 129.07 | 05/20/2025 | 21:47:29 | -71.06, 30.83 | 129.21 | 98.19 | 66 |
| 4 | 05/20/2025 | 22:36:50 | 70.13,-162.93 | 49.87 | 05/20/2025 | 22:37:11 | 70.14,-162.91 | 49.88 | 2.13 | 21 |
| 5 | 05/20/2025 | 23:27:32 | -70.04, 4.51 | 130.23 | 05/20/2025 | 23:26:41 | -70.03, 4.57 | 130.24 | 2.36 | 51 |
| 6 | 05/23/2025 | 14:03:03 | -70.21, 145.39 | 130.56 | 05/23/2025 | 14:04:13 | -70.23, 145.46 | 130.55 | 3.59 | 70 |
| 7 | 05/23/2025 | 14:53:47 | 70.08, -47.10 | 49.30 | 05/23/2025 | 14:53:41 | 70.07, -47.13 | 49.29 | 1.74 | 6 |
| 8 | 05/23/2025 | 15:44:26 | -69.84, 120.58 | 130.96 | 05/23/2025 | 15:43:13 | -69.85, 120.20 | 130.93 | 14.34 | 73 |
| 9 | 05/26/2025 | 06:19:59 | -70.12, -98.71 | 131.13 | 05/26/2025 | 06:20:43 | -70.14, -98.78 | 131.12 | 3.32 | 44 |
| 10 | 05/26/2025 | 07:10:44 | 70.05, 68.71 | 48.78 | 05/26/2025 | 07:10:10 | 70.03, 68.71 | 48.77 | 1.87 | 34 |
| 11 | 05/28/2025 | 21:46:24 | 70.75,-151.27 | 49.09 | 05/28/2025 | 21:47:33 | 70.63,-149.81 | 48.93 | 55.43 | 69 |
| 12 | 05/28/2025 | 22:36:55 | -70.09, 17.09 | 131.60 | 05/28/2025 | 22:37:11 | -70.09, 17.03 | 131.61 | 2.54 | 16 |
| 13 | 05/28/2025 | 23:27:40 | 70.02,-175.48 | 48.32 | 05/28/2025 | 23:26:37 | 70.03,-175.41 | 48.33 | 2.94 | 63 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 5/16/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 05/16/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8