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: 4/9/2025
| 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 | 04/11/2025 | 00:16:05 | 69.97, 172.08 | 61.59 | 04/11/2025 | 00:16:36 | 69.96, 172.00 | 61.58 | 2.89 | 31 |
| 2 | 04/11/2025 | 01:06:47 | -69.89, -20.49 | 118.51 | 04/11/2025 | 01:06:05 | -69.91, -20.44 | 118.49 | 2.59 | 42 |
| 3 | 04/13/2025 | 15:42:24 | -70.29, 120.03 | 119.05 | 04/13/2025 | 15:43:36 | -70.18, 120.55 | 119.18 | 23.12 | 72 |
| 4 | 04/13/2025 | 16:33:04 | 69.96, -72.15 | 60.59 | 04/13/2025 | 16:33:05 | 69.97, -72.12 | 60.60 | 1.40 | 1 |
| 5 | 04/13/2025 | 17:23:45 | -69.87, 95.30 | 119.51 | 04/13/2025 | 17:22:34 | -69.86, 95.37 | 119.52 | 3.14 | 71 |
| 6 | 04/16/2025 | 07:59:17 | -70.02,-123.80 | 120.29 | 04/16/2025 | 08:00:06 | -70.03,-123.79 | 120.29 | 1.19 | 49 |
| 7 | 04/16/2025 | 08:50:01 | 69.90, 43.69 | 59.58 | 04/16/2025 | 08:49:33 | 69.92, 43.70 | 59.60 | 2.06 | 28 |
| 8 | 04/16/2025 | 09:40:25 | -68.86,-147.50 | 121.52 | 04/16/2025 | 09:39:19 | -68.93,-149.98 | 121.37 | 99.77 | 66 |
| 9 | 04/18/2025 | 23:25:46 | 70.76,-176.52 | 59.55 | 04/18/2025 | 23:26:54 | 70.66,-174.64 | 59.39 | 70.08 | 68 |
| 10 | 04/19/2025 | 00:16:15 | -69.98, -7.97 | 121.28 | 04/19/2025 | 00:16:34 | -70.00, -7.95 | 121.26 | 3.14 | 19 |
| 11 | 04/19/2025 | 01:06:59 | 69.86, 159.51 | 58.59 | 04/19/2025 | 01:06:01 | 69.89, 159.53 | 58.62 | 3.08 | 58 |
| 12 | 04/21/2025 | 15:42:31 | 70.04, -59.63 | 57.88 | 04/21/2025 | 15:43:32 | 70.03, -59.66 | 57.86 | 2.07 | 61 |
| 13 | 04/21/2025 | 16:33:13 | -69.94, 107.85 | 122.24 | 04/21/2025 | 16:33:02 | -69.93, 107.83 | 122.25 | 1.59 | 11 |
| 14 | 04/21/2025 | 17:23:47 | 69.30, -83.91 | 57.09 | 04/21/2025 | 17:22:37 | 69.37, -85.29 | 57.20 | 54.73 | 70 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/9/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/09/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9