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 | 07:10:08 | 70.03, 68.65 | 58.34 | 08/22/2025 | 07:10:53 | 70.05, 68.70 | 58.34 | 2.61 | 45 |
| 2 | 08/22/2025 | 08:00:50 | -69.95,-123.90 | 121.75 | 08/22/2025 | 08:00:23 | -69.93,-123.82 | 121.76 | 3.38 | 27 |
| 3 | 08/24/2025 | 22:36:35 | -71.01, 15.55 | 119.75 | 08/24/2025 | 22:37:41 | -70.93, 18.26 | 119.91 | 98.83 | 66 |
| 4 | 08/24/2025 | 23:27:01 | 69.96,-175.46 | 59.16 | 08/24/2025 | 23:27:24 | 69.96,-175.54 | 59.16 | 2.92 | 23 |
| 5 | 08/25/2025 | 00:17:43 | -69.87, -8.00 | 120.92 | 08/25/2025 | 00:16:54 | -69.85, -8.06 | 120.94 | 3.06 | 49 |
| 6 | 08/27/2025 | 14:53:12 | -70.15, 132.71 | 119.72 | 08/27/2025 | 14:54:24 | -70.12, 132.94 | 119.77 | 9.04 | 72 |
| 7 | 08/27/2025 | 15:43:54 | 69.94, -59.66 | 60.07 | 08/27/2025 | 15:43:52 | 69.96, -59.65 | 60.10 | 2.55 | 2 |
| 8 | 08/27/2025 | 16:34:36 | -69.84, 107.81 | 120.02 | 08/27/2025 | 16:33:22 | -69.85, 107.83 | 120.00 | 1.65 | 74 |
| 9 | 08/30/2025 | 07:10:04 | -70.03,-111.32 | 118.91 | 08/30/2025 | 07:10:55 | -70.01,-111.35 | 118.93 | 2.62 | 51 |
| 10 | 08/30/2025 | 08:00:48 | 69.93, 56.14 | 61.01 | 08/30/2025 | 08:00:22 | 69.90, 56.15 | 60.98 | 3.37 | 26 |
| 11 | 08/30/2025 | 08:51:13 | -68.92,-135.10 | 120.02 | 08/30/2025 | 08:50:07 | -68.96,-137.47 | 119.91 | 94.80 | 66 |
| 12 | 09/01/2025 | 22:36:33 | 71.02,-164.44 | 63.08 | 09/01/2025 | 22:37:39 | 70.91,-161.76 | 62.90 | 98.20 | 66 |
| 13 | 09/01/2025 | 23:26:57 | -69.96, 4.56 | 118.01 | 09/01/2025 | 23:27:24 | -69.98, 4.51 | 117.99 | 3.09 | 27 |
| 14 | 09/02/2025 | 00:17:41 | 69.87, 172.01 | 61.91 | 09/02/2025 | 00:16:51 | 69.87, 171.99 | 61.91 | 0.91 | 50 |
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