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: 7/10/2025
| 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 | 07/10/2025 | 14:53:11 | -70.00, 132.86 | 132.15 | 07/10/2025 | 14:54:02 | -70.01, 132.80 | 132.15 | 2.50 | 51 |
| 2 | 07/10/2025 | 15:43:56 | 69.92, -59.70 | 47.77 | 07/10/2025 | 15:43:29 | 69.91, -59.70 | 47.76 | 1.19 | 27 |
| 3 | 07/10/2025 | 16:34:21 | -68.95, 109.01 | 133.25 | 07/10/2025 | 16:33:14 | -68.97, 106.68 | 133.12 | 93.19 | 67 |
| 4 | 07/13/2025 | 06:19:41 | 70.92, 79.85 | 49.19 | 07/13/2025 | 06:20:48 | 70.81, 82.24 | 48.98 | 87.68 | 67 |
| 5 | 07/13/2025 | 07:10:07 | -70.01,-111.37 | 131.77 | 07/13/2025 | 07:10:31 | -69.99,-111.34 | 131.80 | 2.13 | 24 |
| 6 | 07/13/2025 | 08:00:51 | 69.87, 56.14 | 48.09 | 07/13/2025 | 07:59:58 | 69.88, 56.15 | 48.11 | 1.47 | 53 |
| 7 | 07/15/2025 | 22:36:20 | 70.04,-162.96 | 48.67 | 07/15/2025 | 22:37:30 | 70.06,-162.98 | 48.69 | 3.26 | 70 |
| 8 | 07/15/2025 | 23:27:02 | -69.96, 4.47 | 131.40 | 07/15/2025 | 23:27:00 | -69.96, 4.50 | 131.41 | 1.28 | 2 |
| 9 | 07/16/2025 | 00:17:42 | 69.62, 172.29 | 48.24 | 07/16/2025 | 00:16:30 | 69.68, 171.76 | 48.34 | 21.67 | 72 |
| 10 | 07/18/2025 | 14:53:14 | 70.00, -47.13 | 49.09 | 07/18/2025 | 14:53:58 | 70.01, -47.16 | 49.10 | 2.45 | 44 |
| 11 | 07/18/2025 | 15:43:56 | -69.92, 120.30 | 130.98 | 07/18/2025 | 15:43:28 | -69.91, 120.33 | 130.99 | 1.12 | 28 |
| 12 | 07/21/2025 | 06:19:40 | -70.87,-100.06 | 129.48 | 07/21/2025 | 06:20:47 | -70.78, -97.79 | 129.68 | 83.39 | 67 |
| 13 | 07/21/2025 | 07:10:09 | 69.96, 68.70 | 49.56 | 07/21/2025 | 07:10:27 | 69.95, 68.64 | 49.55 | 2.41 | 18 |
| 14 | 07/21/2025 | 08:00:51 | -69.88,-123.87 | 130.52 | 07/21/2025 | 07:59:57 | -69.85,-123.87 | 130.54 | 3.04 | 54 |
| 15 | 07/23/2025 | 22:36:20 | -70.05, 17.02 | 129.81 | 07/23/2025 | 22:37:28 | -70.05, 17.03 | 129.82 | 0.19 | 68 |
| 16 | 07/23/2025 | 23:27:04 | 69.93,-175.48 | 50.07 | 07/23/2025 | 23:26:55 | 69.93,-175.50 | 50.07 | 0.84 | 9 |
| 17 | 07/24/2025 | 00:17:41 | -69.58, -7.65 | 130.29 | 07/24/2025 | 00:16:29 | -69.62, -8.30 | 130.22 | 25.62 | 72 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/10/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/10/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9