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: 7/24/2025
| 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 | 07/26/2025 | 14:53:14 | -70.02, 132.85 | 129.26 | 07/26/2025 | 14:54:11 | -70.04, 132.83 | 129.26 | 1.73 | 57 |
| 2 | 07/26/2025 | 15:43:59 | 69.94, -59.72 | 50.66 | 07/26/2025 | 15:43:38 | 69.93, -59.68 | 50.65 | 1.92 | 21 |
| 3 | 07/26/2025 | 16:34:28 | -69.18, 108.70 | 130.13 | 07/26/2025 | 16:33:19 | -69.22, 106.99 | 130.01 | 67.70 | 69 |
| 4 | 07/29/2025 | 07:10:09 | -70.00,-111.35 | 128.67 | 07/29/2025 | 07:10:41 | -70.01,-111.32 | 128.66 | 1.66 | 32 |
| 5 | 07/29/2025 | 08:00:53 | 69.87, 56.16 | 51.21 | 07/29/2025 | 08:00:09 | 69.85, 56.09 | 51.19 | 3.65 | 44 |
| 6 | 07/31/2025 | 22:36:27 | 70.32,-163.39 | 52.33 | 07/31/2025 | 22:37:38 | 70.24,-162.75 | 52.20 | 25.92 | 71 |
| 7 | 07/31/2025 | 23:27:04 | -69.98, 4.45 | 128.03 | 07/31/2025 | 23:27:11 | -69.97, 4.50 | 128.05 | 2.25 | 7 |
| 8 | 08/01/2025 | 00:17:48 | 69.85, 171.95 | 51.85 | 08/01/2025 | 00:16:38 | 69.85, 171.98 | 51.85 | 1.14 | 70 |
| 9 | 08/03/2025 | 14:53:16 | 70.05, -47.19 | 52.72 | 08/03/2025 | 14:54:09 | 70.06, -47.12 | 52.72 | 3.05 | 53 |
| 10 | 08/03/2025 | 15:43:57 | -69.92, 120.33 | 127.41 | 08/03/2025 | 15:43:40 | -69.91, 120.30 | 127.42 | 1.54 | 17 |
| 11 | 08/03/2025 | 16:34:27 | 69.05, -71.11 | 51.69 | 08/03/2025 | 16:33:19 | 69.13, -73.11 | 51.86 | 79.93 | 68 |
| 12 | 08/06/2025 | 07:10:10 | 69.99, 68.67 | 53.39 | 08/06/2025 | 07:10:39 | 69.98, 68.65 | 53.36 | 2.04 | 29 |
| 13 | 08/06/2025 | 08:00:52 | -69.91,-123.88 | 126.70 | 08/06/2025 | 08:00:09 | -69.88,-123.85 | 126.72 | 3.16 | 43 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 7/24/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 07/24/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9