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: 8/31/2025
| 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 | 09/01/2025 | 23:26:57 | -70.00, 4.50 | 117.97 | 09/01/2025 | 23:27:27 | -69.98, 4.48 | 118.00 | 2.85 | 30 |
| 2 | 09/02/2025 | 00:17:41 | 69.89, 171.97 | 61.93 | 09/02/2025 | 00:16:54 | 69.88, 171.98 | 61.92 | 1.75 | 47 |
| 3 | 09/04/2025 | 14:53:14 | 70.37, -47.60 | 63.38 | 09/04/2025 | 14:54:25 | 70.24, -46.90 | 63.23 | 29.97 | 71 |
| 4 | 09/04/2025 | 15:43:50 | -69.95, 120.36 | 117.04 | 09/04/2025 | 15:43:58 | -69.96, 120.34 | 117.03 | 1.64 | 8 |
| 5 | 09/04/2025 | 16:34:34 | 69.85, -72.18 | 62.87 | 09/04/2025 | 16:33:25 | 69.86, -72.16 | 62.88 | 1.52 | 69 |
| 6 | 09/07/2025 | 07:10:01 | 70.02, 68.72 | 64.01 | 09/07/2025 | 07:10:59 | 70.02, 68.66 | 64.01 | 2.30 | 58 |
| 7 | 09/07/2025 | 08:00:43 | -69.91,-123.80 | 116.09 | 09/07/2025 | 08:00:29 | -69.91,-123.85 | 116.09 | 2.13 | 14 |
| 8 | 09/07/2025 | 08:51:15 | 69.17, 44.58 | 63.17 | 09/07/2025 | 08:50:06 | 69.25, 42.90 | 63.29 | 67.00 | 69 |
| 9 | 09/09/2025 | 23:26:53 | 69.99,-175.45 | 64.99 | 09/09/2025 | 23:27:28 | 69.99,-175.50 | 64.98 | 1.91 | 35 |
| 10 | 09/10/2025 | 00:17:35 | -69.88, -7.97 | 115.12 | 09/10/2025 | 00:16:58 | -69.88, -8.02 | 115.12 | 1.82 | 37 |
| 11 | 09/12/2025 | 14:53:13 | -70.64, 132.00 | 113.35 | 09/12/2025 | 14:54:22 | -70.52, 133.51 | 113.50 | 57.22 | 69 |
| 12 | 09/12/2025 | 15:43:46 | 69.97, -59.64 | 65.98 | 09/12/2025 | 15:43:57 | 69.97, -59.64 | 65.98 | 0.41 | 11 |
| 13 | 09/12/2025 | 16:34:28 | -69.86, 107.84 | 114.13 | 09/12/2025 | 16:33:27 | -69.87, 107.84 | 114.12 | 0.82 | 61 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/31/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/31/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9