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: 9/24/2025
| 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 | 09/25/2025 | 23:26:42 | 70.02,-175.42 | 71.17 | 09/25/2025 | 23:27:32 | 70.01,-175.48 | 71.16 | 2.59 | 50 |
| 2 | 09/26/2025 | 00:17:24 | -69.91, -7.95 | 108.93 | 09/26/2025 | 00:17:02 | -69.89, -8.01 | 108.95 | 3.21 | 22 |
| 3 | 09/28/2025 | 15:43:35 | 70.04, -59.66 | 72.23 | 09/28/2025 | 15:44:01 | 70.02, -59.58 | 72.21 | 3.43 | 26 |
| 4 | 09/28/2025 | 16:34:16 | -69.88, 107.89 | 107.93 | 09/28/2025 | 16:33:31 | -69.91, 107.89 | 107.89 | 3.63 | 45 |
| 5 | 10/01/2025 | 07:09:48 | -70.37,-111.70 | 106.42 | 10/01/2025 | 07:11:00 | -70.27,-110.99 | 106.53 | 28.74 | 72 |
| 6 | 10/01/2025 | 08:00:26 | 69.96, 56.24 | 73.19 | 10/01/2025 | 08:00:31 | 69.94, 56.18 | 73.16 | 3.12 | 5 |
| 7 | 10/01/2025 | 08:51:08 | -69.85,-136.28 | 106.91 | 10/01/2025 | 08:50:01 | -69.83,-136.33 | 106.93 | 2.99 | 67 |
| 8 | 10/03/2025 | 23:26:33 | -70.04, 4.60 | 105.72 | 10/03/2025 | 23:27:31 | -70.04, 4.57 | 105.72 | 1.38 | 58 |
| 9 | 10/04/2025 | 00:17:17 | 69.94, 172.05 | 74.21 | 10/04/2025 | 00:16:58 | 69.93, 172.06 | 74.19 | 1.75 | 19 |
| 10 | 10/04/2025 | 01:07:47 | -69.20, -19.55 | 106.54 | 10/04/2025 | 01:06:38 | -69.27, -21.20 | 106.46 | 65.73 | 69 |
| 11 | 10/06/2025 | 15:43:25 | -70.03, 120.40 | 104.70 | 10/06/2025 | 15:43:58 | -70.05, 120.47 | 104.68 | 3.38 | 33 |
| 12 | 10/06/2025 | 16:34:08 | 69.89, -72.07 | 75.18 | 10/06/2025 | 16:33:26 | 69.88, -72.12 | 75.17 | 2.14 | 42 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/24/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/24/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9