Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/7/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 04/08/2025 | 07:59:07 | 70.02, 56.24 | 62.64 | 04/08/2025 | 08:00:06 | 70.01, 56.19 | 62.61 | 2.81 | 59 |
| 2 | 04/08/2025 | 08:49:49 | -69.95,-136.33 | 117.46 | 04/08/2025 | 08:49:35 | -69.95,-136.25 | 117.46 | 2.87 | 14 |
| 3 | 04/08/2025 | 09:40:22 | 69.23, 32.03 | 61.79 | 04/08/2025 | 09:39:13 | 69.24, 30.43 | 61.85 | 63.16 | 69 |
| 4 | 04/11/2025 | 00:16:05 | 70.00, 172.03 | 61.62 | 04/11/2025 | 00:16:36 | 69.99, 172.04 | 61.60 | 1.04 | 31 |
| 5 | 04/11/2025 | 01:06:46 | -69.87, -20.45 | 118.54 | 04/11/2025 | 01:06:06 | -69.88, -20.48 | 118.52 | 2.36 | 40 |
| 6 | 04/13/2025 | 15:42:25 | -70.37, 119.90 | 118.96 | 04/13/2025 | 15:43:36 | -70.30, 120.70 | 119.07 | 30.96 | 71 |
| 7 | 04/13/2025 | 16:33:04 | 69.99, -72.19 | 60.62 | 04/13/2025 | 16:33:07 | 69.97, -72.12 | 60.60 | 3.16 | 3 |
| 8 | 04/13/2025 | 17:23:45 | -69.85, 95.34 | 119.54 | 04/13/2025 | 17:22:37 | -69.87, 95.37 | 119.51 | 2.49 | 68 |
| 9 | 04/16/2025 | 07:59:18 | -70.05,-123.84 | 120.26 | 04/16/2025 | 08:00:11 | -70.06,-123.78 | 120.26 | 2.53 | 53 |
| 10 | 04/16/2025 | 08:50:02 | 69.93, 43.65 | 59.61 | 04/16/2025 | 08:49:38 | 69.95, 43.71 | 59.62 | 2.85 | 24 |
| 11 | 04/16/2025 | 09:40:29 | -69.05,-147.75 | 121.33 | 04/16/2025 | 09:39:21 | -69.13,-149.75 | 121.18 | 79.96 | 68 |
| 12 | 04/19/2025 | 00:16:16 | -70.00, -8.01 | 121.25 | 04/19/2025 | 00:16:43 | -69.98, -8.02 | 121.28 | 3.04 | 27 |
| 13 | 04/19/2025 | 01:07:00 | 69.89, 159.47 | 58.62 | 04/19/2025 | 01:06:10 | 69.86, 159.46 | 58.60 | 3.27 | 50 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/7/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/07/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9