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: 9/27/2025
| 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 | 09/28/2025 | 15:43:35 | 70.03, -59.65 | 72.22 | 09/28/2025 | 15:44:01 | 70.02, -59.58 | 72.21 | 2.82 | 26 |
| 2 | 09/28/2025 | 16:34:17 | -69.93, 107.82 | 107.88 | 09/28/2025 | 16:33:31 | -69.91, 107.89 | 107.89 | 3.30 | 46 |
| 3 | 10/01/2025 | 07:09:48 | -70.36,-111.69 | 106.42 | 10/01/2025 | 07:11:00 | -70.26,-111.00 | 106.53 | 28.40 | 72 |
| 4 | 10/01/2025 | 08:00:26 | 69.95, 56.25 | 73.18 | 10/01/2025 | 08:00:31 | 69.94, 56.18 | 73.16 | 2.97 | 5 |
| 5 | 10/01/2025 | 08:51:08 | -69.85,-136.27 | 106.92 | 10/01/2025 | 08:50:01 | -69.83,-136.34 | 106.94 | 3.27 | 67 |
| 6 | 10/03/2025 | 23:26:33 | -70.03, 4.61 | 105.72 | 10/03/2025 | 23:27:31 | -70.03, 4.56 | 105.73 | 1.95 | 58 |
| 7 | 10/04/2025 | 00:17:17 | 69.94, 172.06 | 74.20 | 10/04/2025 | 00:16:58 | 69.92, 172.05 | 74.18 | 1.91 | 19 |
| 8 | 10/04/2025 | 01:07:47 | -69.20, -19.54 | 106.54 | 10/04/2025 | 01:06:38 | -69.26, -21.21 | 106.46 | 66.26 | 69 |
| 9 | 10/06/2025 | 15:43:25 | -70.03, 120.40 | 104.70 | 10/06/2025 | 15:43:58 | -70.03, 120.45 | 104.70 | 1.72 | 33 |
| 10 | 10/06/2025 | 16:34:09 | 69.94, -72.15 | 75.23 | 10/06/2025 | 16:33:25 | 69.92, -72.07 | 75.21 | 3.58 | 44 |
| 11 | 10/09/2025 | 07:09:40 | 70.41, 68.29 | 76.70 | 10/09/2025 | 07:10:51 | 70.31, 69.11 | 76.60 | 32.65 | 71 |
| 12 | 10/09/2025 | 08:00:16 | -69.98,-123.74 | 103.72 | 10/09/2025 | 08:00:25 | -69.99,-123.72 | 103.72 | 1.13 | 9 |
| 13 | 10/09/2025 | 08:51:00 | 69.89, 43.71 | 76.20 | 10/09/2025 | 08:49:52 | 69.87, 43.77 | 76.18 | 2.74 | 68 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/27/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/27/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9