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: 4/8/2025
| 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 | 70.04, 56.22 | 62.65 | 04/08/2025 | 08:00:05 | 70.05, 56.25 | 62.65 | 1.41 | 58 |
| 2 | 04/08/2025 | 08:49:48 | -69.91,-136.27 | 117.50 | 04/08/2025 | 08:49:35 | -69.93,-136.27 | 117.47 | 2.87 | 13 |
| 3 | 04/08/2025 | 09:40:21 | 69.19, 32.09 | 61.74 | 04/08/2025 | 09:39:12 | 69.28, 30.48 | 61.89 | 64.17 | 69 |
| 4 | 04/11/2025 | 00:16:06 | 70.01, 172.02 | 61.63 | 04/11/2025 | 00:16:36 | 70.03, 172.09 | 61.64 | 3.36 | 30 |
| 5 | 04/11/2025 | 01:06:46 | -69.88, -20.46 | 118.53 | 04/11/2025 | 01:06:06 | -69.86, -20.50 | 118.54 | 2.03 | 40 |
| 6 | 04/13/2025 | 15:42:25 | -70.38, 119.89 | 118.95 | 04/13/2025 | 15:43:36 | -70.28, 120.67 | 119.09 | 31.62 | 71 |
| 7 | 04/13/2025 | 16:33:03 | 69.94, -72.13 | 60.58 | 04/13/2025 | 16:33:07 | 69.95, -72.15 | 60.58 | 1.22 | 4 |
| 8 | 04/13/2025 | 17:23:45 | -69.86, 95.32 | 119.53 | 04/13/2025 | 17:22:37 | -69.85, 95.34 | 119.53 | 1.43 | 68 |
| 9 | 04/16/2025 | 07:59:18 | -70.06,-123.85 | 120.25 | 04/16/2025 | 08:00:11 | -70.03,-123.81 | 120.29 | 3.15 | 53 |
| 10 | 04/16/2025 | 08:50:02 | 69.94, 43.64 | 59.61 | 04/16/2025 | 08:49:38 | 69.92, 43.68 | 59.60 | 2.49 | 24 |
| 11 | 04/16/2025 | 09:40:29 | -69.05,-147.77 | 121.32 | 04/16/2025 | 09:39:21 | -69.11,-149.78 | 121.21 | 80.38 | 68 |
| 12 | 04/19/2025 | 00:16:16 | -70.01, -8.02 | 121.25 | 04/19/2025 | 00:16:42 | -70.01, -7.98 | 121.25 | 1.44 | 26 |
| 13 | 04/19/2025 | 01:07:00 | 69.89, 159.46 | 58.63 | 04/19/2025 | 01:06:09 | 69.89, 159.51 | 58.63 | 1.67 | 51 |
| 14 | 04/21/2025 | 15:42:32 | 70.07, -59.67 | 57.92 | 04/21/2025 | 15:43:43 | 70.07, -59.65 | 57.91 | 0.78 | 71 |
| 15 | 04/21/2025 | 16:33:14 | -69.97, 107.80 | 122.21 | 04/21/2025 | 16:33:13 | -69.97, 107.84 | 122.20 | 1.71 | 1 |
| 16 | 04/21/2025 | 17:23:54 | 69.70, -84.49 | 57.51 | 04/21/2025 | 17:22:41 | 69.75, -84.83 | 57.57 | 13.83 | 73 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/8/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/08/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9