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: 5/7/2025
| 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 | 05/07/2025 | 14:02:55 | -70.65, 144.77 | 126.40 | 05/07/2025 | 14:04:06 | -70.56, 145.80 | 126.52 | 39.66 | 71 |
| 2 | 05/07/2025 | 14:53:32 | 70.18, -47.17 | 53.10 | 05/07/2025 | 14:53:38 | 70.19, -47.10 | 53.11 | 3.01 | 6 |
| 3 | 05/07/2025 | 15:44:14 | -70.08, 120.30 | 127.01 | 05/07/2025 | 15:43:08 | -70.07, 120.37 | 127.02 | 2.79 | 66 |
| 4 | 05/10/2025 | 06:19:44 | -70.22, -98.78 | 127.57 | 05/10/2025 | 06:20:39 | -70.19, -98.85 | 127.59 | 3.64 | 55 |
| 5 | 05/10/2025 | 07:10:28 | 70.10, 68.70 | 52.31 | 05/10/2025 | 07:10:06 | 70.09, 68.64 | 52.30 | 2.53 | 22 |
| 6 | 05/10/2025 | 08:00:56 | -69.27,-122.75 | 128.56 | 05/10/2025 | 07:59:48 | -69.32,-124.78 | 128.46 | 79.98 | 68 |
| 7 | 05/12/2025 | 21:46:16 | 71.14,-151.84 | 52.73 | 05/12/2025 | 21:47:22 | 71.06,-149.31 | 52.59 | 91.85 | 66 |
| 8 | 05/12/2025 | 22:36:42 | -70.20, 17.00 | 128.26 | 05/12/2025 | 22:37:06 | -70.18, 17.01 | 128.28 | 2.44 | 24 |
| 9 | 05/12/2025 | 23:27:26 | 70.09,-175.52 | 51.62 | 05/12/2025 | 23:26:33 | 70.08,-175.50 | 51.61 | 1.84 | 53 |
| 10 | 05/15/2025 | 14:02:57 | 70.24, -34.62 | 51.15 | 05/15/2025 | 14:04:03 | 70.25, -34.64 | 51.15 | 1.47 | 66 |
| 11 | 05/15/2025 | 14:53:39 | -70.15, 132.84 | 128.96 | 05/15/2025 | 14:53:33 | -70.14, 132.84 | 128.96 | 0.33 | 6 |
| 12 | 05/15/2025 | 15:44:16 | 69.66, -59.12 | 50.54 | 05/15/2025 | 15:43:05 | 69.76, -60.06 | 50.66 | 37.71 | 71 |
| 13 | 05/18/2025 | 06:19:54 | 70.19, 81.22 | 50.49 | 05/18/2025 | 06:20:30 | 70.18, 81.15 | 50.48 | 2.77 | 36 |
| 14 | 05/18/2025 | 07:10:36 | -70.09,-111.32 | 129.61 | 05/18/2025 | 07:10:00 | -70.07,-111.37 | 129.63 | 2.88 | 36 |
| 15 | 05/20/2025 | 21:46:13 | -70.63, 28.98 | 129.61 | 05/20/2025 | 21:47:24 | -70.47, 29.81 | 129.79 | 35.44 | 71 |
| 16 | 05/20/2025 | 22:36:50 | 70.14,-162.95 | 49.88 | 05/20/2025 | 22:36:55 | 70.14,-163.03 | 49.88 | 2.83 | 5 |
| 17 | 05/20/2025 | 23:27:32 | -70.05, 4.51 | 130.22 | 05/20/2025 | 23:26:25 | -70.03, 4.46 | 130.23 | 2.55 | 67 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 5/7/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 05/07/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8