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: 10/20/2025
| 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 | 10/22/2025 | 15:43:31 | -70.02, 120.42 | 98.80 | 10/22/2025 | 15:44:07 | -70.04, 120.42 | 98.78 | 1.43 | 36 |
| 2 | 10/22/2025 | 16:34:16 | 69.95, -72.16 | 81.15 | 10/22/2025 | 16:33:34 | 69.93, -72.08 | 81.12 | 3.67 | 42 |
| 3 | 10/25/2025 | 07:09:52 | 70.21, 68.56 | 82.31 | 10/25/2025 | 07:11:03 | 70.15, 68.85 | 82.26 | 12.21 | 71 |
| 4 | 10/25/2025 | 08:00:31 | -69.96,-123.74 | 97.93 | 10/25/2025 | 08:00:34 | -69.99,-123.75 | 97.90 | 3.36 | 3 |
| 5 | 10/25/2025 | 08:51:15 | 69.83, 43.76 | 81.96 | 10/25/2025 | 08:50:02 | 69.82, 43.66 | 81.95 | 3.86 | 73 |
| 6 | 10/27/2025 | 23:26:51 | 70.05,-175.45 | 83.06 | 10/27/2025 | 23:27:31 | 70.07,-175.39 | 83.08 | 2.82 | 40 |
| 7 | 10/28/2025 | 00:17:32 | -69.91, -7.91 | 97.07 | 10/28/2025 | 00:17:02 | -69.91, -7.98 | 97.08 | 2.51 | 30 |
| 8 | 10/30/2025 | 14:53:15 | -70.50, 132.29 | 95.61 | 10/30/2025 | 14:54:26 | -70.38, 133.32 | 95.73 | 40.75 | 71 |
| 9 | 10/30/2025 | 15:43:52 | 70.01, -59.64 | 83.91 | 10/30/2025 | 15:43:58 | 69.99, -59.60 | 83.89 | 2.51 | 6 |
| 10 | 10/30/2025 | 16:34:33 | -69.87, 107.90 | 96.23 | 10/30/2025 | 16:33:28 | -69.89, 107.89 | 96.21 | 2.20 | 65 |
| 11 | 11/02/2025 | 07:10:08 | -70.05,-111.26 | 95.21 | 11/02/2025 | 07:10:57 | -70.05,-111.26 | 95.21 | 0.07 | 49 |
| 12 | 11/02/2025 | 08:00:52 | 69.93, 56.24 | 84.68 | 11/02/2025 | 08:00:24 | 69.93, 56.22 | 84.69 | 0.98 | 28 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/20/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/20/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9