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: 8/27/2025
| 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 | 08/30/2025 | 07:10:04 | -70.01,-111.29 | 118.92 | 08/30/2025 | 07:10:55 | -70.02,-111.33 | 118.92 | 1.61 | 51 |
| 2 | 08/30/2025 | 08:00:48 | 69.90, 56.18 | 60.98 | 08/30/2025 | 08:00:22 | 69.92, 56.17 | 61.00 | 1.43 | 26 |
| 3 | 08/30/2025 | 08:51:14 | -68.96,-135.15 | 119.98 | 08/30/2025 | 08:50:07 | -68.97,-137.46 | 119.90 | 92.24 | 67 |
| 4 | 09/01/2025 | 22:36:32 | 71.00,-164.41 | 63.06 | 09/01/2025 | 22:37:38 | 70.91,-161.75 | 62.90 | 96.92 | 66 |
| 5 | 09/01/2025 | 23:26:57 | -70.00, 4.50 | 117.97 | 09/01/2025 | 23:27:23 | -69.98, 4.50 | 118.00 | 3.10 | 26 |
| 6 | 09/02/2025 | 00:17:40 | 69.85, 172.04 | 61.89 | 09/02/2025 | 00:16:50 | 69.87, 172.00 | 61.92 | 3.29 | 50 |
| 7 | 09/04/2025 | 14:53:09 | 70.11, -47.20 | 63.11 | 09/04/2025 | 14:54:21 | 70.08, -47.10 | 63.07 | 4.94 | 72 |
| 8 | 09/04/2025 | 15:43:50 | -69.95, 120.36 | 117.04 | 09/04/2025 | 15:43:51 | -69.97, 120.38 | 117.03 | 2.21 | 1 |
| 9 | 09/04/2025 | 16:34:32 | 69.75, -72.03 | 62.76 | 09/04/2025 | 16:33:19 | 69.81, -72.21 | 62.83 | 9.71 | 73 |
| 10 | 09/07/2025 | 07:10:01 | 70.01, 68.73 | 64.01 | 09/07/2025 | 07:10:50 | 69.99, 68.67 | 63.98 | 3.24 | 49 |
| 11 | 09/07/2025 | 08:00:43 | -69.90,-123.79 | 116.10 | 09/07/2025 | 08:00:20 | -69.89,-123.85 | 116.12 | 3.07 | 23 |
| 12 | 09/09/2025 | 23:26:54 | 69.98,-175.44 | 64.97 | 09/09/2025 | 23:27:17 | 70.00,-175.44 | 64.99 | 1.73 | 23 |
| 13 | 09/10/2025 | 00:17:36 | -69.87, -7.95 | 115.14 | 09/10/2025 | 00:16:47 | -69.89, -7.95 | 115.11 | 2.74 | 49 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/27/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/27/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9