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: 9/4/2025
| 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 | 09/07/2025 | 07:10:01 | 70.03, 68.70 | 64.02 | 09/07/2025 | 07:10:59 | 70.01, 68.65 | 64.00 | 2.93 | 58 |
| 2 | 09/07/2025 | 08:00:43 | -69.93,-123.83 | 116.07 | 09/07/2025 | 08:00:28 | -69.95,-123.80 | 116.05 | 2.89 | 15 |
| 3 | 09/07/2025 | 08:51:15 | 69.19, 44.56 | 63.18 | 09/07/2025 | 08:50:06 | 69.24, 42.88 | 63.28 | 66.48 | 69 |
| 4 | 09/09/2025 | 23:26:54 | 70.00,-175.47 | 65.00 | 09/09/2025 | 23:27:29 | 69.98,-175.52 | 64.97 | 3.15 | 35 |
| 5 | 09/10/2025 | 00:17:36 | -69.90, -7.99 | 115.10 | 09/10/2025 | 00:16:58 | -69.92, -7.96 | 115.08 | 3.29 | 38 |
| 6 | 09/12/2025 | 14:53:14 | -70.65, 131.98 | 113.34 | 09/12/2025 | 14:54:23 | -70.51, 133.49 | 113.51 | 57.77 | 69 |
| 7 | 09/12/2025 | 15:43:47 | 69.98, -59.65 | 65.99 | 09/12/2025 | 15:43:58 | 69.96, -59.66 | 65.97 | 1.99 | 11 |
| 8 | 09/12/2025 | 16:34:28 | -69.87, 107.83 | 114.12 | 09/12/2025 | 16:33:27 | -69.85, 107.83 | 114.13 | 1.68 | 61 |
| 9 | 09/15/2025 | 07:09:55 | -70.05,-111.29 | 112.93 | 09/15/2025 | 07:10:58 | -70.07,-111.26 | 112.92 | 2.64 | 63 |
| 10 | 09/15/2025 | 08:00:39 | 69.96, 56.15 | 67.00 | 09/15/2025 | 08:00:25 | 69.96, 56.23 | 66.99 | 3.02 | 14 |
| 11 | 09/15/2025 | 08:51:13 | -69.43,-135.74 | 113.55 | 09/15/2025 | 08:50:02 | -69.47,-136.81 | 113.48 | 42.00 | 71 |
| 12 | 09/17/2025 | 23:26:48 | -70.04, 4.51 | 111.91 | 09/17/2025 | 23:27:26 | -70.04, 4.58 | 111.92 | 2.94 | 38 |
| 13 | 09/18/2025 | 00:17:31 | 69.90, 172.03 | 67.96 | 09/18/2025 | 00:16:53 | 69.92, 172.07 | 67.98 | 2.73 | 38 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/4/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/04/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9