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: 9/18/2025
| 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 | 09/20/2025 | 14:53:11 | 70.76, -48.17 | 69.85 | 09/20/2025 | 14:54:19 | 70.61, -46.34 | 69.68 | 69.16 | 68 |
| 2 | 09/20/2025 | 15:43:40 | -69.97, 120.40 | 110.95 | 09/20/2025 | 15:43:59 | -69.95, 120.33 | 110.97 | 3.54 | 19 |
| 3 | 09/20/2025 | 16:34:24 | 69.87, -72.15 | 68.97 | 09/20/2025 | 16:33:26 | 69.85, -72.17 | 68.95 | 2.89 | 58 |
| 4 | 09/23/2025 | 07:09:51 | 70.07, 68.71 | 70.18 | 09/23/2025 | 07:10:57 | 70.06, 68.74 | 70.17 | 1.47 | 66 |
| 5 | 09/23/2025 | 08:00:33 | -69.96,-123.81 | 109.92 | 09/23/2025 | 08:00:27 | -69.95,-123.78 | 109.93 | 1.61 | 6 |
| 6 | 09/23/2025 | 08:51:10 | 69.50, 44.19 | 69.63 | 09/23/2025 | 08:49:59 | 69.57, 43.34 | 69.71 | 34.24 | 71 |
| 7 | 09/25/2025 | 23:26:42 | 70.02,-175.42 | 71.17 | 09/25/2025 | 23:27:24 | 70.04,-175.40 | 71.19 | 2.88 | 42 |
| 8 | 09/26/2025 | 00:17:24 | -69.91, -7.94 | 108.93 | 09/26/2025 | 00:16:54 | -69.93, -7.92 | 108.91 | 3.02 | 30 |
| 9 | 09/28/2025 | 14:53:06 | -70.90, 131.65 | 106.91 | 09/28/2025 | 14:54:13 | -70.77, 133.92 | 107.06 | 84.03 | 67 |
| 10 | 09/28/2025 | 15:43:34 | 69.97, -59.57 | 72.16 | 09/28/2025 | 15:43:52 | 70.00, -59.56 | 72.19 | 3.60 | 18 |
| 11 | 09/28/2025 | 16:34:17 | -69.91, 107.84 | 107.89 | 09/28/2025 | 16:33:22 | -69.90, 107.92 | 107.91 | 3.37 | 55 |
| 12 | 10/01/2025 | 07:09:43 | -70.07,-111.24 | 106.72 | 10/01/2025 | 07:10:53 | -70.06,-111.24 | 106.73 | 1.00 | 70 |
| 13 | 10/01/2025 | 08:00:26 | 69.93, 56.28 | 73.16 | 10/01/2025 | 08:00:20 | 69.95, 56.24 | 73.17 | 2.35 | 6 |
| 14 | 10/01/2025 | 08:51:05 | -69.66,-135.99 | 107.11 | 10/01/2025 | 08:49:52 | -69.73,-136.42 | 107.03 | 18.48 | 73 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/18/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/18/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9