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: 8/20/2025
| 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 | 08/22/2025 | 07:10:07 | 70.01, 68.69 | 58.31 | 08/22/2025 | 07:10:53 | 70.02, 68.66 | 58.31 | 1.28 | 46 |
| 2 | 08/22/2025 | 08:00:49 | -69.92,-123.86 | 121.78 | 08/22/2025 | 08:00:23 | -69.90,-123.86 | 121.79 | 2.01 | 26 |
| 3 | 08/24/2025 | 23:27:01 | 69.99,-175.50 | 59.19 | 08/24/2025 | 23:27:23 | 69.98,-175.51 | 59.18 | 0.64 | 22 |
| 4 | 08/25/2025 | 00:17:43 | -69.89, -8.04 | 120.90 | 08/25/2025 | 00:16:53 | -69.87, -8.03 | 120.92 | 2.62 | 50 |
| 5 | 08/27/2025 | 14:53:13 | -70.18, 132.67 | 119.69 | 08/27/2025 | 14:54:24 | -70.14, 132.97 | 119.75 | 11.73 | 71 |
| 6 | 08/27/2025 | 15:43:54 | 69.91, -59.62 | 60.05 | 08/27/2025 | 15:43:53 | 69.93, -59.70 | 60.06 | 3.34 | 1 |
| 7 | 08/27/2025 | 16:34:36 | -69.82, 107.85 | 120.05 | 08/27/2025 | 16:33:23 | -69.82, 107.79 | 120.04 | 2.37 | 73 |
| 8 | 08/30/2025 | 07:10:04 | -70.00,-111.28 | 118.93 | 08/30/2025 | 07:10:55 | -70.02,-111.32 | 118.92 | 2.98 | 51 |
| 9 | 08/30/2025 | 08:00:48 | 69.90, 56.18 | 60.98 | 08/30/2025 | 08:00:22 | 69.91, 56.17 | 60.99 | 1.47 | 26 |
| 10 | 08/30/2025 | 08:51:14 | -68.95,-135.13 | 120.00 | 08/30/2025 | 08:50:07 | -68.98,-137.45 | 119.90 | 92.40 | 67 |
| 11 | 09/01/2025 | 23:26:57 | -69.99, 4.52 | 117.99 | 09/01/2025 | 23:27:23 | -69.99, 4.52 | 117.98 | 0.94 | 26 |
| 12 | 09/02/2025 | 00:17:41 | 69.89, 171.98 | 61.93 | 09/02/2025 | 00:16:50 | 69.88, 172.01 | 61.92 | 1.64 | 51 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/20/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/20/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9