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: 5/22/2025
| 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 | 05/23/2025 | 14:03:04 | -70.29, 145.26 | 130.48 | 05/23/2025 | 14:04:15 | -70.27, 145.50 | 130.52 | 9.25 | 71 |
| 2 | 05/23/2025 | 14:53:47 | 70.10, -47.14 | 49.32 | 05/23/2025 | 14:53:43 | 70.11, -47.08 | 49.33 | 2.42 | 4 |
| 3 | 05/23/2025 | 15:44:27 | -69.93, 120.45 | 130.87 | 05/23/2025 | 15:43:14 | -69.94, 120.32 | 130.85 | 5.55 | 73 |
| 4 | 05/26/2025 | 06:19:59 | -70.15, -98.75 | 131.11 | 05/26/2025 | 06:20:47 | -70.14, -98.80 | 131.12 | 1.93 | 48 |
| 5 | 05/26/2025 | 07:10:44 | 70.07, 68.68 | 48.80 | 05/26/2025 | 07:10:14 | 70.04, 68.70 | 48.78 | 3.13 | 30 |
| 6 | 05/28/2025 | 21:46:28 | 70.92,-151.56 | 49.27 | 05/28/2025 | 21:47:36 | 70.82,-149.55 | 49.11 | 74.25 | 68 |
| 7 | 05/28/2025 | 22:36:56 | -70.12, 17.06 | 131.58 | 05/28/2025 | 22:37:17 | -70.11, 17.03 | 131.59 | 1.37 | 21 |
| 8 | 05/28/2025 | 23:27:40 | 69.98,-175.43 | 48.28 | 05/28/2025 | 23:26:44 | 70.00,-175.47 | 48.31 | 2.79 | 56 |
| 9 | 05/31/2025 | 14:03:11 | 70.16, -34.57 | 48.09 | 05/31/2025 | 14:04:17 | 70.16, -34.64 | 48.08 | 2.74 | 66 |
| 10 | 05/31/2025 | 14:53:53 | -70.09, 132.86 | 132.00 | 05/31/2025 | 14:53:46 | -70.11, 132.92 | 131.98 | 3.03 | 7 |
| 11 | 05/31/2025 | 15:44:30 | 69.58, -59.08 | 47.48 | 05/31/2025 | 15:43:19 | 69.67, -60.05 | 47.59 | 38.99 | 71 |
| 12 | 06/03/2025 | 06:20:07 | 70.14, 81.23 | 47.72 | 06/03/2025 | 06:20:45 | 70.13, 81.21 | 47.71 | 0.64 | 38 |
| 13 | 06/03/2025 | 07:10:48 | -70.01,-111.26 | 132.42 | 06/03/2025 | 07:10:15 | -70.03,-111.30 | 132.40 | 2.68 | 33 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 5/22/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 05/22/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8