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: 4/13/2025
| 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 | 04/13/2025 | 15:42:23 | -70.28, 120.05 | 119.07 | 04/13/2025 | 15:43:35 | -70.19, 120.55 | 119.18 | 21.10 | 72 |
| 2 | 04/13/2025 | 16:33:03 | 69.93, -72.11 | 60.57 | 04/13/2025 | 16:33:05 | 69.92, -72.18 | 60.55 | 3.03 | 2 |
| 3 | 04/13/2025 | 17:23:45 | -69.85, 95.32 | 119.53 | 04/13/2025 | 17:22:34 | -69.86, 95.37 | 119.52 | 2.08 | 71 |
| 4 | 04/16/2025 | 07:59:17 | -70.01,-123.77 | 120.31 | 04/16/2025 | 08:00:06 | -70.03,-123.80 | 120.29 | 2.52 | 49 |
| 5 | 04/16/2025 | 08:50:02 | 69.93, 43.64 | 59.61 | 04/16/2025 | 08:49:33 | 69.92, 43.70 | 59.59 | 2.54 | 29 |
| 6 | 04/18/2025 | 23:25:46 | 70.73,-176.48 | 59.53 | 04/18/2025 | 23:26:54 | 70.64,-174.66 | 59.38 | 67.94 | 68 |
| 7 | 04/19/2025 | 00:16:15 | -69.96, -7.94 | 121.30 | 04/19/2025 | 00:16:34 | -69.98, -7.98 | 121.28 | 2.94 | 19 |
| 8 | 04/19/2025 | 01:07:00 | 69.89, 159.47 | 58.62 | 04/19/2025 | 01:06:01 | 69.87, 159.51 | 58.61 | 2.96 | 59 |
| 9 | 04/21/2025 | 15:42:31 | 70.07, -59.68 | 57.92 | 04/21/2025 | 15:43:30 | 70.05, -59.63 | 57.88 | 3.15 | 59 |
| 10 | 04/21/2025 | 16:33:12 | -69.92, 107.87 | 122.25 | 04/21/2025 | 16:33:00 | -69.94, 107.85 | 122.23 | 2.37 | 12 |
| 11 | 04/21/2025 | 17:23:46 | 69.28, -83.88 | 57.07 | 04/21/2025 | 17:22:36 | 69.33, -85.33 | 57.17 | 57.42 | 70 |
| 12 | 04/24/2025 | 07:59:28 | 70.00, 56.19 | 56.95 | 04/24/2025 | 07:59:56 | 70.02, 56.21 | 56.96 | 1.58 | 28 |
| 13 | 04/24/2025 | 08:50:10 | -69.90,-136.33 | 123.17 | 04/24/2025 | 08:49:26 | -69.91,-136.30 | 123.16 | 1.81 | 44 |
| 14 | 04/26/2025 | 23:25:43 | -70.15, 4.42 | 123.76 | 04/26/2025 | 23:26:54 | -70.11, 4.59 | 123.81 | 7.82 | 71 |
| 15 | 04/27/2025 | 00:16:25 | 69.94, 172.04 | 56.02 | 04/27/2025 | 00:16:22 | 69.93, 171.99 | 56.01 | 2.39 | 3 |
| 16 | 04/27/2025 | 01:07:06 | -69.78, -20.40 | 124.16 | 04/27/2025 | 01:05:52 | -69.83, -20.52 | 124.10 | 7.24 | 74 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/13/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/13/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9