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: 8/29/2025
| 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 | -70.04,-111.34 | 118.89 | 08/30/2025 | 07:10:54 | -70.03,-111.31 | 118.91 | 1.88 | 50 |
| 2 | 08/30/2025 | 08:00:48 | 69.93, 56.13 | 61.01 | 08/30/2025 | 08:00:21 | 69.93, 56.19 | 61.01 | 2.32 | 27 |
| 3 | 08/30/2025 | 08:51:13 | -68.94,-135.12 | 120.00 | 08/30/2025 | 08:50:06 | -68.99,-137.44 | 119.89 | 92.72 | 67 |
| 4 | 09/01/2025 | 22:36:33 | 71.03,-164.46 | 63.09 | 09/01/2025 | 22:37:38 | 70.92,-161.74 | 62.91 | 99.39 | 65 |
| 5 | 09/01/2025 | 23:26:57 | -69.98, 4.53 | 117.99 | 09/01/2025 | 23:27:23 | -69.98, 4.51 | 117.99 | 0.90 | 26 |
| 6 | 09/02/2025 | 00:17:41 | 69.88, 172.00 | 61.92 | 09/02/2025 | 00:16:50 | 69.88, 172.01 | 61.93 | 0.56 | 51 |
| 7 | 09/04/2025 | 14:53:10 | 70.14, -47.24 | 63.14 | 09/04/2025 | 14:54:20 | 70.13, -47.03 | 63.12 | 8.13 | 70 |
| 8 | 09/04/2025 | 15:43:51 | -69.98, 120.31 | 117.01 | 09/04/2025 | 15:43:51 | -69.96, 120.37 | 117.03 | 2.70 | 0 |
| 9 | 09/04/2025 | 16:34:32 | 69.72, -71.99 | 62.74 | 09/04/2025 | 16:33:20 | 69.75, -72.29 | 62.77 | 11.91 | 72 |
| 10 | 09/07/2025 | 07:10:01 | 70.04, 68.69 | 64.03 | 09/07/2025 | 07:10:48 | 70.03, 68.72 | 64.01 | 1.71 | 47 |
| 11 | 09/07/2025 | 08:00:43 | -69.93,-123.83 | 116.07 | 09/07/2025 | 08:00:18 | -69.92,-123.81 | 116.09 | 1.70 | 25 |
| 12 | 09/09/2025 | 23:26:54 | 70.00,-175.47 | 65.00 | 09/09/2025 | 23:27:15 | 70.01,-175.42 | 65.00 | 2.12 | 21 |
| 13 | 09/10/2025 | 00:17:36 | -69.89, -7.98 | 115.11 | 09/10/2025 | 00:16:45 | -69.90, -7.94 | 115.10 | 2.29 | 51 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/29/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/29/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9