Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/29/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 08/30/2025 | 06:20:29 | -70.13, -98.86 | 118.82 | 08/30/2025 | 06:21:24 | -70.13, -98.82 | 118.82 | 1.59 | 55 |
| 2 | 08/30/2025 | 07:11:12 | 69.98, 68.68 | 61.05 | 08/30/2025 | 07:10:52 | 69.98, 68.61 | 61.04 | 2.61 | 20 |
| 3 | 08/30/2025 | 08:01:41 | -69.18,-122.84 | 119.77 | 08/30/2025 | 08:00:33 | -69.26,-124.73 | 119.64 | 75.02 | 68 |
| 4 | 09/01/2025 | 22:37:21 | -70.06, 17.03 | 117.93 | 09/01/2025 | 22:37:55 | -70.07, 16.97 | 117.92 | 2.75 | 34 |
| 5 | 09/01/2025 | 23:28:05 | 69.96,-175.52 | 61.99 | 09/01/2025 | 23:27:22 | 69.97,-175.53 | 62.00 | 0.96 | 43 |
| 6 | 09/04/2025 | 14:03:40 | 70.52, -35.24 | 63.52 | 09/04/2025 | 14:04:51 | 70.42, -34.27 | 63.39 | 37.52 | 71 |
| 7 | 09/04/2025 | 14:54:15 | -70.04, 132.82 | 116.96 | 09/04/2025 | 14:54:26 | -70.04, 132.81 | 116.97 | 0.71 | 11 |
| 8 | 09/04/2025 | 15:44:59 | 69.95, -59.72 | 62.95 | 09/04/2025 | 15:43:53 | 69.93, -59.70 | 62.94 | 1.79 | 66 |
| 9 | 09/07/2025 | 06:20:26 | 70.10, 81.20 | 64.07 | 09/07/2025 | 06:21:27 | 70.09, 81.12 | 64.06 | 3.02 | 61 |
| 10 | 09/07/2025 | 07:11:08 | -69.99,-111.32 | 116.03 | 09/07/2025 | 07:10:57 | -69.99,-111.39 | 116.03 | 2.86 | 11 |
| 11 | 09/07/2025 | 08:01:42 | 69.36, 56.92 | 63.34 | 09/07/2025 | 08:00:32 | 69.44, 55.50 | 63.45 | 56.14 | 70 |
| 12 | 09/09/2025 | 22:37:20 | 70.10,-163.03 | 65.08 | 09/09/2025 | 22:37:57 | 70.07,-163.03 | 65.04 | 3.56 | 37 |
| 13 | 09/09/2025 | 23:28:02 | -69.99, 4.45 | 115.02 | 09/09/2025 | 23:27:27 | -69.97, 4.46 | 115.05 | 3.05 | 35 |
| 14 | 09/12/2025 | 14:03:41 | -70.78, 144.35 | 113.21 | 09/12/2025 | 14:04:50 | -70.68, 146.10 | 113.36 | 65.35 | 69 |
| 15 | 09/12/2025 | 14:54:12 | 70.06, -47.19 | 66.05 | 09/12/2025 | 14:54:25 | 70.07, -47.14 | 66.07 | 2.54 | 13 |
| 16 | 09/12/2025 | 15:44:54 | -69.95, 120.29 | 114.05 | 09/12/2025 | 15:43:55 | -69.97, 120.35 | 114.02 | 3.32 | 59 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/29/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/29/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8