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: 8/26/2025
| 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 | 08/27/2025 | 14:53:13 | -70.18, 132.68 | 119.70 | 08/27/2025 | 14:54:24 | -70.15, 132.97 | 119.74 | 11.60 | 71 |
| 2 | 08/27/2025 | 15:43:55 | 69.96, -59.68 | 60.09 | 08/27/2025 | 15:43:53 | 69.94, -59.68 | 60.08 | 1.63 | 2 |
| 3 | 08/27/2025 | 16:34:36 | -69.81, 107.85 | 120.05 | 08/27/2025 | 16:33:23 | -69.83, 107.79 | 120.03 | 2.58 | 73 |
| 4 | 08/30/2025 | 07:10:04 | -70.05,-111.36 | 118.88 | 08/30/2025 | 07:10:54 | -70.03,-111.32 | 118.91 | 3.25 | 50 |
| 5 | 08/30/2025 | 08:00:48 | 69.95, 56.11 | 61.03 | 08/30/2025 | 08:00:21 | 69.93, 56.19 | 61.01 | 3.48 | 27 |
| 6 | 08/30/2025 | 08:51:13 | -68.95,-135.13 | 119.99 | 08/30/2025 | 08:50:06 | -68.99,-137.44 | 119.89 | 92.22 | 67 |
| 7 | 09/01/2025 | 23:26:57 | -69.99, 4.52 | 117.98 | 09/01/2025 | 23:27:23 | -70.00, 4.52 | 117.98 | 0.76 | 26 |
| 8 | 09/02/2025 | 00:17:41 | 69.89, 171.98 | 61.93 | 09/02/2025 | 00:16:50 | 69.89, 172.02 | 61.93 | 1.56 | 51 |
| 9 | 09/04/2025 | 14:53:10 | 70.14, -47.25 | 63.15 | 09/04/2025 | 14:54:21 | 70.11, -47.06 | 63.10 | 8.24 | 71 |
| 10 | 09/04/2025 | 15:43:50 | -69.93, 120.39 | 117.06 | 09/04/2025 | 15:43:52 | -69.94, 120.34 | 117.05 | 2.38 | 2 |
| 11 | 09/04/2025 | 16:34:33 | 69.78, -72.08 | 62.80 | 09/04/2025 | 16:33:20 | 69.78, -72.24 | 62.81 | 6.35 | 73 |
| 12 | 09/07/2025 | 07:10:02 | 70.04, 68.68 | 64.03 | 09/07/2025 | 07:10:50 | 70.04, 68.72 | 64.02 | 1.75 | 48 |
| 13 | 09/07/2025 | 08:00:44 | -69.93,-123.83 | 116.07 | 09/07/2025 | 08:00:20 | -69.93,-123.79 | 116.07 | 1.50 | 24 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/26/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 08/26/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9