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: 4/9/2025
| 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 | 04/10/2025 | 22:36:40 | -70.20, 17.03 | 118.16 | 04/10/2025 | 22:37:21 | -70.21, 17.07 | 118.17 | 1.65 | 41 |
| 2 | 04/10/2025 | 23:27:23 | 70.07,-175.45 | 61.69 | 04/10/2025 | 23:26:49 | 70.05,-175.51 | 61.67 | 2.94 | 34 |
| 3 | 04/13/2025 | 14:02:59 | 70.90, -35.62 | 61.61 | 04/13/2025 | 14:04:07 | 70.79, -33.82 | 61.43 | 67.10 | 68 |
| 4 | 04/13/2025 | 14:53:29 | -70.15, 132.90 | 119.20 | 04/13/2025 | 14:53:46 | -70.18, 132.92 | 119.17 | 3.12 | 17 |
| 5 | 04/13/2025 | 15:44:12 | 70.02, -59.59 | 60.66 | 04/13/2025 | 15:43:14 | 70.02, -59.67 | 60.66 | 2.89 | 58 |
| 6 | 04/16/2025 | 06:19:37 | 70.23, 81.24 | 59.95 | 04/16/2025 | 06:20:42 | 70.21, 81.23 | 59.92 | 2.36 | 65 |
| 7 | 04/16/2025 | 07:10:19 | -70.11,-111.25 | 120.20 | 04/16/2025 | 07:10:12 | -70.10,-111.30 | 120.21 | 2.07 | 7 |
| 8 | 04/16/2025 | 08:00:55 | 69.61, 56.80 | 59.28 | 04/16/2025 | 07:59:44 | 69.72, 55.81 | 59.41 | 40.26 | 71 |
| 9 | 04/18/2025 | 22:36:27 | 70.21,-162.93 | 58.98 | 04/18/2025 | 22:37:06 | 70.20,-162.90 | 58.96 | 1.87 | 39 |
| 10 | 04/18/2025 | 23:27:09 | -70.08, 4.58 | 121.17 | 04/18/2025 | 23:26:36 | -70.09, 4.57 | 121.16 | 0.28 | 33 |
| 11 | 04/21/2025 | 14:02:45 | -70.90, 144.44 | 121.22 | 04/21/2025 | 14:03:53 | -70.79, 146.23 | 121.37 | 66.33 | 68 |
| 12 | 04/21/2025 | 14:53:16 | 70.14, -47.04 | 57.99 | 04/21/2025 | 14:53:30 | 70.13, -47.09 | 57.98 | 2.40 | 14 |
| 13 | 04/21/2025 | 15:43:59 | -70.07, 120.39 | 122.10 | 04/21/2025 | 15:42:59 | -70.08, 120.46 | 122.09 | 2.97 | 60 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/9/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/09/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8