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: 9/26/2025
| 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 | 15:43:34 | 70.00, -59.61 | 72.19 | 09/28/2025 | 15:44:01 | 70.00, -59.62 | 72.19 | 0.69 | 27 |
| 2 | 09/28/2025 | 16:34:16 | -69.90, 107.86 | 107.90 | 09/28/2025 | 16:33:31 | -69.88, 107.86 | 107.92 | 1.70 | 45 |
| 3 | 10/01/2025 | 07:09:48 | -70.39,-111.74 | 106.39 | 10/01/2025 | 07:10:59 | -70.29,-110.96 | 106.50 | 31.29 | 71 |
| 4 | 10/01/2025 | 08:00:26 | 69.98, 56.21 | 73.21 | 10/01/2025 | 08:00:30 | 69.97, 56.22 | 73.19 | 1.65 | 4 |
| 5 | 10/01/2025 | 08:51:08 | -69.87,-136.32 | 106.89 | 10/01/2025 | 08:50:00 | -69.86,-136.30 | 106.91 | 2.15 | 68 |
| 6 | 10/03/2025 | 23:26:34 | -70.06, 4.56 | 105.69 | 10/03/2025 | 23:27:31 | -70.06, 4.60 | 105.70 | 1.39 | 57 |
| 7 | 10/04/2025 | 00:17:18 | 69.97, 172.02 | 74.23 | 10/04/2025 | 00:16:58 | 69.95, 172.09 | 74.21 | 3.47 | 20 |
| 8 | 10/04/2025 | 01:07:48 | -69.23, -19.58 | 106.51 | 10/04/2025 | 01:06:39 | -69.24, -21.25 | 106.49 | 65.54 | 69 |
| 9 | 10/06/2025 | 15:43:25 | -70.01, 120.44 | 104.72 | 10/06/2025 | 15:43:59 | -70.01, 120.41 | 104.72 | 0.93 | 34 |
| 10 | 10/06/2025 | 16:34:09 | 69.91, -72.11 | 75.20 | 10/06/2025 | 16:33:26 | 69.89, -72.10 | 75.18 | 2.61 | 43 |
| 11 | 10/09/2025 | 07:09:40 | 70.44, 68.23 | 76.73 | 10/09/2025 | 07:10:50 | 70.34, 69.16 | 76.63 | 36.21 | 70 |
| 12 | 10/09/2025 | 08:00:15 | -69.96,-123.71 | 103.74 | 10/09/2025 | 08:00:25 | -69.96,-123.75 | 103.74 | 1.68 | 10 |
| 13 | 10/09/2025 | 08:50:59 | 69.87, 43.74 | 76.18 | 10/09/2025 | 08:49:52 | 69.85, 43.73 | 76.16 | 2.76 | 67 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/26/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/26/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9