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: 10/31/2025
| 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 | 10/31/2025 | 23:01:38 | -70.09, 10.81 | 95.60 | 10/31/2025 | 23:02:50 | -70.08, 10.77 | 95.60 | 1.42 | 72 |
| 2 | 10/31/2025 | 23:52:23 | 70.00, 178.25 | 84.33 | 10/31/2025 | 23:52:17 | 69.98, 178.27 | 84.31 | 2.56 | 6 |
| 3 | 11/01/2025 | 00:43:01 | -69.72, -14.01 | 95.95 | 11/01/2025 | 00:41:49 | -69.76, -14.40 | 95.91 | 16.02 | 72 |
| 4 | 11/03/2025 | 15:18:39 | -70.05, 126.61 | 94.79 | 11/03/2025 | 15:19:20 | -70.06, 126.61 | 94.79 | 0.18 | 41 |
| 5 | 11/03/2025 | 16:09:24 | 69.97, -65.95 | 85.14 | 11/03/2025 | 16:08:47 | 69.95, -65.89 | 85.12 | 3.09 | 37 |
| 6 | 11/06/2025 | 06:45:04 | 70.47, 74.39 | 86.44 | 11/06/2025 | 06:46:14 | 70.38, 75.32 | 86.35 | 36.46 | 70 |
| 7 | 11/06/2025 | 07:35:39 | -70.03,-117.60 | 94.00 | 11/06/2025 | 07:35:49 | -70.00,-117.59 | 94.03 | 3.42 | 10 |
| 8 | 11/06/2025 | 08:26:23 | 69.89, 49.92 | 85.88 | 11/06/2025 | 08:25:16 | 69.89, 49.90 | 85.87 | 0.83 | 67 |
| 9 | 11/08/2025 | 23:01:58 | 70.09,-169.26 | 86.84 | 11/08/2025 | 23:02:48 | 70.07,-169.24 | 86.81 | 2.56 | 50 |
| 10 | 11/08/2025 | 23:52:39 | -69.96, -1.74 | 93.29 | 11/08/2025 | 23:52:18 | -69.96, -1.76 | 93.29 | 0.98 | 21 |
| 11 | 11/09/2025 | 00:43:07 | 68.97, 166.99 | 85.74 | 11/09/2025 | 00:42:00 | 69.02, 164.62 | 85.78 | 94.72 | 67 |
| 12 | 11/11/2025 | 14:28:30 | -71.00, 137.73 | 91.51 | 11/11/2025 | 14:29:36 | -70.88, 140.20 | 91.63 | 90.85 | 66 |
| 13 | 11/11/2025 | 15:18:58 | 70.03, -53.41 | 87.52 | 11/11/2025 | 15:19:16 | 70.05, -53.37 | 87.55 | 3.20 | 18 |
| 14 | 11/11/2025 | 16:09:39 | -69.90, 114.11 | 92.61 | 11/11/2025 | 16:08:47 | -69.90, 114.04 | 92.60 | 2.75 | 52 |
| 15 | 11/14/2025 | 06:45:14 | -70.11,-105.09 | 91.70 | 11/14/2025 | 06:46:17 | -70.13,-105.02 | 91.68 | 3.46 | 63 |
| 16 | 11/14/2025 | 07:35:58 | 69.98, 62.42 | 88.18 | 11/14/2025 | 07:35:45 | 69.96, 62.38 | 88.16 | 2.75 | 13 |
| 17 | 11/14/2025 | 08:26:32 | -69.47,-129.51 | 92.32 | 11/14/2025 | 08:25:21 | -69.53,-130.58 | 92.27 | 42.11 | 71 |
Figure of NOAA-20 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/31/2025
Download SNOs between NOAA-20 and LANDSAT-8 since TLE EPOCH: 10/31/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-8