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: 3/20/2025
| 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 | 03/20/2025 | 15:42:26 | 70.04, -59.62 | 69.93 | 03/20/2025 | 15:43:35 | 70.04, -59.60 | 69.91 | 0.71 | 69 |
| 2 | 03/20/2025 | 16:33:07 | -69.92, 107.87 | 110.21 | 03/20/2025 | 16:33:05 | -69.92, 107.87 | 110.22 | 0.55 | 2 |
| 3 | 03/20/2025 | 17:23:47 | 69.57, -84.30 | 69.41 | 03/20/2025 | 17:22:35 | 69.65, -84.86 | 69.52 | 23.41 | 72 |
| 4 | 03/23/2025 | 07:59:16 | 69.99, 56.25 | 68.81 | 03/23/2025 | 07:59:59 | 69.97, 56.21 | 68.79 | 2.25 | 43 |
| 5 | 03/23/2025 | 08:49:57 | -69.87,-136.26 | 111.33 | 03/23/2025 | 08:49:29 | -69.86,-136.32 | 111.34 | 2.89 | 28 |
| 6 | 03/25/2025 | 23:25:35 | -70.77, 3.50 | 111.42 | 03/25/2025 | 23:26:43 | -70.66, 5.47 | 111.60 | 73.52 | 68 |
| 7 | 03/26/2025 | 00:16:06 | 69.96, 172.09 | 67.72 | 03/26/2025 | 00:16:21 | 69.95, 172.08 | 67.70 | 1.34 | 15 |
| 8 | 03/26/2025 | 01:06:47 | -69.84, -20.41 | 112.43 | 03/26/2025 | 01:05:51 | -69.83, -20.44 | 112.42 | 1.30 | 56 |
| 9 | 03/28/2025 | 15:42:10 | -70.02, 120.48 | 113.26 | 03/28/2025 | 15:43:14 | -70.02, 120.45 | 113.27 | 1.01 | 64 |
| 10 | 03/28/2025 | 16:32:54 | 69.89, -72.02 | 66.60 | 03/28/2025 | 16:32:41 | 69.90, -72.06 | 66.61 | 1.92 | 13 |
| 11 | 03/28/2025 | 17:23:28 | -69.40, 96.02 | 113.94 | 03/28/2025 | 17:22:17 | -69.46, 94.96 | 113.83 | 41.89 | 71 |
| 12 | 03/31/2025 | 07:58:59 | -69.97,-123.65 | 114.36 | 03/31/2025 | 07:59:34 | -69.97,-123.71 | 114.37 | 2.18 | 35 |
| 13 | 03/31/2025 | 08:49:43 | 69.85, 43.84 | 65.50 | 03/31/2025 | 08:49:01 | 69.85, 43.77 | 65.51 | 2.53 | 42 |
| 14 | 04/02/2025 | 23:25:09 | 70.18,-175.49 | 64.84 | 04/02/2025 | 23:26:21 | 70.12,-175.21 | 64.76 | 12.87 | 72 |
| 15 | 04/03/2025 | 00:15:48 | -69.94, -7.81 | 115.43 | 04/03/2025 | 00:15:52 | -69.95, -7.81 | 115.42 | 1.53 | 4 |
| 16 | 04/03/2025 | 01:06:32 | 69.82, 159.68 | 64.44 | 04/03/2025 | 01:05:19 | 69.83, 159.67 | 64.45 | 0.77 | 73 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/20/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 03/20/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9