Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/15/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 07/17/2025 | 06:44:47 | 70.04, 74.92 | 48.90 | 07/17/2025 | 06:45:53 | 70.02, 74.86 | 48.87 | 3.23 | 66 |
| 2 | 07/17/2025 | 07:35:29 | -69.97,-117.66 | 131.17 | 07/17/2025 | 07:35:22 | -69.97,-117.59 | 131.17 | 2.69 | 7 |
| 3 | 07/17/2025 | 08:26:06 | 69.46, 50.40 | 48.31 | 07/17/2025 | 08:24:55 | 69.53, 49.46 | 48.42 | 37.63 | 71 |
| 4 | 07/19/2025 | 23:01:42 | 70.01,-169.26 | 49.35 | 07/19/2025 | 23:02:23 | 70.04,-169.24 | 49.37 | 3.50 | 41 |
| 5 | 07/19/2025 | 23:52:24 | -69.93, -1.83 | 130.72 | 07/19/2025 | 23:51:53 | -69.93, -1.76 | 130.73 | 2.75 | 31 |
| 6 | 07/22/2025 | 14:28:08 | -70.89, 137.80 | 129.20 | 07/22/2025 | 14:29:15 | -70.75, 140.04 | 129.44 | 83.61 | 67 |
| 7 | 07/22/2025 | 15:18:37 | 69.98, -53.44 | 49.84 | 07/22/2025 | 15:18:54 | 69.98, -53.43 | 49.85 | 0.93 | 17 |
| 8 | 07/22/2025 | 16:09:19 | -69.90, 113.99 | 130.23 | 07/22/2025 | 16:08:24 | -69.88, 114.06 | 130.25 | 3.16 | 55 |
| 9 | 07/25/2025 | 06:44:48 | -70.08,-105.13 | 129.50 | 07/25/2025 | 06:45:57 | -70.09,-105.05 | 129.50 | 3.14 | 69 |
| 10 | 07/25/2025 | 07:35:32 | 69.95, 62.37 | 50.38 | 07/25/2025 | 07:35:24 | 69.97, 62.43 | 50.40 | 3.38 | 8 |
| 11 | 07/25/2025 | 08:26:10 | -69.66,-129.88 | 129.92 | 07/25/2025 | 08:24:57 | -69.71,-130.30 | 129.85 | 17.23 | 73 |
| 12 | 07/27/2025 | 23:01:41 | -70.00, 10.76 | 128.98 | 07/27/2025 | 23:02:27 | -70.01, 10.72 | 128.98 | 1.80 | 46 |
| 13 | 07/27/2025 | 23:52:25 | 69.88, 178.26 | 50.90 | 07/27/2025 | 23:51:54 | 69.90, 178.20 | 50.92 | 2.69 | 31 |
Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/15/2025
Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 07/15/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-8