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: 9/21/2025
| 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 | 09/23/2025 | 07:09:51 | 70.08, 68.70 | 70.19 | 09/23/2025 | 07:11:01 | 70.10, 68.77 | 70.21 | 3.68 | 70 |
| 2 | 09/23/2025 | 08:00:33 | -69.98,-123.83 | 109.91 | 09/23/2025 | 08:00:31 | -69.99,-123.75 | 109.90 | 3.11 | 2 |
| 3 | 09/23/2025 | 08:51:13 | 69.67, 43.95 | 69.80 | 09/23/2025 | 08:50:01 | 69.72, 43.52 | 69.86 | 17.63 | 72 |
| 4 | 09/25/2025 | 23:26:42 | 70.03,-175.44 | 71.18 | 09/25/2025 | 23:27:31 | 70.06,-175.41 | 71.20 | 2.88 | 49 |
| 5 | 09/26/2025 | 00:17:24 | -69.92, -7.96 | 108.92 | 09/26/2025 | 00:17:01 | -69.95, -7.94 | 108.90 | 2.69 | 23 |
| 6 | 09/26/2025 | 01:07:50 | 68.87, 160.86 | 70.03 | 09/26/2025 | 01:06:44 | 68.96, 158.38 | 70.14 | 99.43 | 66 |
| 7 | 09/28/2025 | 15:43:34 | 69.99, -59.59 | 72.18 | 09/28/2025 | 15:44:02 | 69.98, -59.64 | 72.17 | 1.92 | 28 |
| 8 | 09/28/2025 | 16:34:16 | -69.88, 107.89 | 107.92 | 09/28/2025 | 16:33:32 | -69.88, 107.85 | 107.93 | 1.74 | 44 |
| 9 | 10/01/2025 | 07:09:49 | -70.41,-111.77 | 106.37 | 10/01/2025 | 07:11:00 | -70.32,-110.92 | 106.47 | 33.52 | 71 |
| 10 | 10/01/2025 | 08:00:26 | 69.95, 56.25 | 73.18 | 10/01/2025 | 08:00:32 | 69.94, 56.18 | 73.16 | 3.25 | 6 |
| 11 | 10/01/2025 | 08:51:08 | -69.84,-136.27 | 106.92 | 10/01/2025 | 08:50:02 | -69.83,-136.33 | 106.93 | 2.68 | 66 |
| 12 | 10/03/2025 | 23:26:35 | -70.07, 4.55 | 105.69 | 10/03/2025 | 23:27:34 | -70.03, 4.55 | 105.73 | 3.73 | 59 |
| 13 | 10/04/2025 | 00:17:18 | 69.93, 172.08 | 74.19 | 10/04/2025 | 00:17:01 | 69.92, 172.04 | 74.18 | 1.72 | 17 |
| 14 | 10/04/2025 | 01:07:50 | -69.28, -19.67 | 106.45 | 10/04/2025 | 01:06:40 | -69.32, -21.14 | 106.41 | 58.11 | 70 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/21/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/21/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9