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: 5/17/2025
| 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 | 06:19:54 | 70.19, 81.21 | 50.50 | 05/18/2025 | 06:20:42 | 70.18, 81.26 | 50.48 | 2.11 | 48 |
| 2 | 05/18/2025 | 07:10:35 | -70.06,-111.26 | 129.65 | 05/18/2025 | 07:10:12 | -70.06,-111.27 | 129.65 | 0.96 | 23 |
| 3 | 05/20/2025 | 21:46:24 | -71.16, 28.09 | 129.06 | 05/20/2025 | 21:47:30 | -71.04, 30.80 | 129.23 | 98.52 | 66 |
| 4 | 05/20/2025 | 22:36:51 | 70.14,-162.95 | 49.88 | 05/20/2025 | 22:37:12 | 70.12,-162.93 | 49.86 | 1.84 | 21 |
| 5 | 05/20/2025 | 23:27:32 | -70.01, 4.57 | 130.27 | 05/20/2025 | 23:26:42 | -70.01, 4.54 | 130.26 | 1.28 | 50 |
| 6 | 05/23/2025 | 14:03:03 | -70.23, 145.37 | 130.55 | 05/23/2025 | 14:04:13 | -70.21, 145.43 | 130.57 | 2.85 | 70 |
| 7 | 05/23/2025 | 14:53:47 | 70.10, -47.12 | 49.31 | 05/23/2025 | 14:53:40 | 70.11, -47.08 | 49.32 | 2.11 | 7 |
| 8 | 05/23/2025 | 15:44:25 | -69.81, 120.63 | 131.00 | 05/23/2025 | 15:43:12 | -69.89, 120.25 | 130.90 | 17.19 | 73 |
| 9 | 05/26/2025 | 06:19:59 | -70.14, -98.73 | 131.12 | 05/26/2025 | 06:20:43 | -70.12, -98.81 | 131.14 | 3.28 | 44 |
| 10 | 05/26/2025 | 07:10:44 | 70.06, 68.69 | 48.80 | 05/26/2025 | 07:10:09 | 70.07, 68.76 | 48.80 | 2.53 | 35 |
| 11 | 05/28/2025 | 21:46:24 | 70.71,-151.20 | 49.05 | 05/28/2025 | 21:47:34 | 70.61,-149.84 | 48.91 | 51.26 | 70 |
| 12 | 05/28/2025 | 22:36:56 | -70.10, 17.08 | 131.59 | 05/28/2025 | 22:37:11 | -70.12, 17.08 | 131.58 | 1.81 | 15 |
| 13 | 05/28/2025 | 23:27:41 | 70.03,-175.50 | 48.33 | 05/28/2025 | 23:26:38 | 70.01,-175.44 | 48.31 | 3.14 | 63 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 5/17/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 05/17/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8