Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 10/18/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 10/18/2025 | 15:18:03 | -70.30, 126.37 | 99.95 | 10/18/2025 | 15:19:14 | -70.23, 126.87 | 100.02 | 20.54 | 71 |
| 2 | 10/18/2025 | 16:08:43 | 69.96, -65.81 | 79.73 | 10/18/2025 | 16:08:44 | 69.96, -65.86 | 79.73 | 2.04 | 1 |
| 3 | 10/18/2025 | 16:59:25 | -69.87, 101.65 | 100.35 | 10/18/2025 | 16:58:14 | -69.85, 101.61 | 100.38 | 3.07 | 71 |
| 4 | 10/21/2025 | 07:35:00 | -70.06,-117.52 | 99.23 | 10/21/2025 | 07:35:44 | -70.05,-117.50 | 99.25 | 1.62 | 44 |
| 5 | 10/21/2025 | 08:25:44 | 69.94, 49.98 | 80.66 | 10/21/2025 | 08:25:11 | 69.94, 50.00 | 80.66 | 0.81 | 33 |
| 6 | 10/23/2025 | 23:01:27 | 70.50,-169.77 | 82.14 | 10/23/2025 | 23:02:37 | 70.38,-168.76 | 82.03 | 39.76 | 70 |
| 7 | 10/23/2025 | 23:52:01 | -69.99, -1.66 | 98.36 | 10/23/2025 | 23:52:12 | -70.00, -1.68 | 98.35 | 1.60 | 11 |
| 8 | 10/24/2025 | 00:42:45 | 69.86, 165.84 | 81.53 | 10/24/2025 | 00:41:39 | 69.89, 165.81 | 81.55 | 3.24 | 66 |
| 9 | 10/26/2025 | 15:18:21 | 70.06, -53.34 | 82.62 | 10/26/2025 | 15:19:09 | 70.08, -53.31 | 82.64 | 2.15 | 48 |
| 10 | 10/26/2025 | 16:09:03 | -69.97, 114.11 | 97.46 | 10/26/2025 | 16:08:39 | -69.97, 114.17 | 97.46 | 2.24 | 24 |
| 11 | 10/29/2025 | 06:44:51 | -70.81,-106.09 | 95.75 | 10/29/2025 | 06:45:59 | -70.68,-104.18 | 95.87 | 71.38 | 68 |
| 12 | 10/29/2025 | 07:35:22 | 70.00, 62.50 | 83.46 | 10/29/2025 | 07:35:36 | 70.02, 62.50 | 83.48 | 1.83 | 14 |
| 13 | 10/29/2025 | 08:26:04 | -69.91,-130.05 | 96.62 | 10/29/2025 | 08:25:06 | -69.91,-130.01 | 96.62 | 1.28 | 58 |
| 14 | 10/31/2025 | 23:01:38 | -70.07, 10.83 | 95.61 | 10/31/2025 | 23:02:34 | -70.10, 10.87 | 95.59 | 3.36 | 56 |
| 15 | 10/31/2025 | 23:52:22 | 69.95, 178.33 | 84.28 | 10/31/2025 | 23:52:02 | 69.93, 178.27 | 84.25 | 3.31 | 20 |
Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/18/2025
Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 10/18/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-8