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: 7/14/2025
| 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 | 07/15/2025 | 21:46:51 | 70.77,-151.42 | 49.43 | 07/15/2025 | 21:48:00 | 70.65,-149.80 | 49.24 | 60.84 | 69 |
| 2 | 07/15/2025 | 22:37:22 | -70.10, 16.96 | 131.27 | 07/15/2025 | 22:37:38 | -70.10, 17.03 | 131.28 | 2.54 | 16 |
| 3 | 07/15/2025 | 23:28:06 | 69.98,-175.55 | 48.61 | 07/15/2025 | 23:27:05 | 70.00,-175.47 | 48.63 | 3.38 | 61 |
| 4 | 07/18/2025 | 14:03:35 | 70.14, -34.65 | 49.23 | 07/18/2025 | 14:04:40 | 70.13, -34.69 | 49.21 | 2.07 | 65 |
| 5 | 07/18/2025 | 14:54:17 | -70.04, 132.82 | 130.87 | 07/18/2025 | 14:54:10 | -70.02, 132.79 | 130.89 | 2.49 | 7 |
| 6 | 07/18/2025 | 15:44:54 | 69.56, -59.16 | 48.63 | 07/18/2025 | 15:43:43 | 69.58, -60.17 | 48.70 | 39.34 | 71 |
| 7 | 07/21/2025 | 06:20:30 | 70.10, 81.19 | 49.68 | 07/21/2025 | 06:21:11 | 70.09, 81.13 | 49.67 | 2.36 | 41 |
| 8 | 07/21/2025 | 07:11:12 | -69.99,-111.33 | 130.42 | 07/21/2025 | 07:10:41 | -69.99,-111.38 | 130.42 | 1.83 | 31 |
| 9 | 07/23/2025 | 21:46:55 | -70.88, 28.39 | 128.95 | 07/23/2025 | 21:48:03 | -70.80, 30.42 | 129.12 | 74.60 | 68 |
| 10 | 07/23/2025 | 22:37:26 | 70.11,-163.06 | 50.24 | 07/23/2025 | 22:37:41 | 70.09,-162.99 | 50.21 | 3.27 | 15 |
| 11 | 07/23/2025 | 23:28:07 | -69.99, 4.43 | 129.88 | 07/23/2025 | 23:27:10 | -69.99, 4.51 | 129.88 | 3.02 | 57 |
| 12 | 07/26/2025 | 14:03:36 | -70.15, 145.32 | 129.14 | 07/26/2025 | 14:04:44 | -70.14, 145.32 | 129.17 | 1.61 | 68 |
| 13 | 07/26/2025 | 14:54:19 | 70.01, -47.15 | 50.72 | 07/26/2025 | 14:54:11 | 70.02, -47.20 | 50.73 | 2.13 | 8 |
| 14 | 07/26/2025 | 15:44:57 | -69.68, 120.66 | 129.62 | 07/26/2025 | 15:43:45 | -69.71, 119.99 | 129.56 | 25.74 | 72 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/14/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/14/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8