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: 6/23/2025
| 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 | 06/24/2025 | 14:03:25 | -70.19, 145.32 | 133.24 | 06/24/2025 | 14:04:33 | -70.17, 145.36 | 133.27 | 2.48 | 68 |
| 2 | 06/24/2025 | 14:54:09 | 70.04, -47.15 | 46.61 | 06/24/2025 | 14:54:00 | 70.07, -47.14 | 46.63 | 2.92 | 9 |
| 3 | 06/24/2025 | 15:44:46 | -69.72, 120.66 | 133.73 | 06/24/2025 | 15:43:33 | -69.80, 120.11 | 133.63 | 22.85 | 73 |
| 4 | 06/27/2025 | 06:20:20 | -70.11, -98.78 | 133.24 | 06/27/2025 | 06:21:04 | -70.13, -98.83 | 133.22 | 2.93 | 44 |
| 5 | 06/27/2025 | 07:11:05 | 70.02, 68.66 | 46.67 | 06/27/2025 | 07:10:31 | 70.02, 68.67 | 46.68 | 0.52 | 34 |
| 6 | 06/29/2025 | 21:46:47 | 70.83,-151.49 | 47.67 | 06/29/2025 | 21:47:55 | 70.72,-149.70 | 47.49 | 66.73 | 68 |
| 7 | 06/29/2025 | 22:37:16 | -70.08, 17.03 | 133.13 | 06/29/2025 | 22:37:35 | -70.07, 16.97 | 133.14 | 2.27 | 19 |
| 8 | 06/29/2025 | 23:28:00 | 69.94,-175.46 | 46.74 | 06/29/2025 | 23:27:02 | 69.96,-175.54 | 46.76 | 3.69 | 58 |
| 9 | 07/02/2025 | 14:03:30 | 70.18, -34.69 | 47.17 | 07/02/2025 | 14:04:34 | 70.15, -34.66 | 47.13 | 3.19 | 64 |
| 10 | 07/02/2025 | 14:54:11 | -70.05, 132.83 | 132.96 | 07/02/2025 | 14:54:04 | -70.05, 132.83 | 132.96 | 0.41 | 7 |
| 11 | 07/02/2025 | 15:44:48 | 69.55, -59.11 | 46.52 | 07/02/2025 | 15:43:37 | 69.61, -60.14 | 46.62 | 40.48 | 71 |
| 12 | 07/05/2025 | 06:20:25 | 70.11, 81.19 | 47.34 | 07/05/2025 | 06:21:04 | 70.12, 81.18 | 47.34 | 1.20 | 39 |
| 13 | 07/05/2025 | 07:11:07 | -70.03,-111.37 | 132.75 | 07/05/2025 | 07:10:34 | -70.02,-111.33 | 132.75 | 1.37 | 33 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 6/23/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 06/23/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8