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: 8/26/2025
| 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 | 08/27/2025 | 14:03:39 | -70.36, 145.01 | 119.53 | 08/27/2025 | 14:04:50 | -70.30, 145.55 | 119.61 | 21.14 | 71 |
| 2 | 08/27/2025 | 14:54:19 | 70.06, -47.21 | 60.18 | 08/27/2025 | 14:54:20 | 70.03, -47.19 | 60.15 | 2.81 | 1 |
| 3 | 08/27/2025 | 15:45:01 | -69.94, 120.28 | 119.93 | 08/27/2025 | 15:43:50 | -69.92, 120.28 | 119.95 | 3.08 | 71 |
| 4 | 08/30/2025 | 06:20:29 | -70.12, -98.84 | 118.83 | 08/30/2025 | 06:21:22 | -70.09, -98.86 | 118.87 | 3.23 | 53 |
| 5 | 08/30/2025 | 07:11:12 | 69.97, 68.69 | 61.04 | 08/30/2025 | 07:10:49 | 69.99, 68.63 | 61.05 | 2.66 | 23 |
| 6 | 08/30/2025 | 08:01:40 | -69.12,-122.75 | 119.84 | 08/30/2025 | 08:00:32 | -69.16,-124.85 | 119.74 | 83.33 | 68 |
| 7 | 09/01/2025 | 22:37:22 | -70.09, 16.98 | 117.89 | 09/01/2025 | 22:37:49 | -70.08, 17.01 | 117.91 | 1.75 | 27 |
| 8 | 09/01/2025 | 23:28:05 | 69.95,-175.49 | 61.97 | 09/01/2025 | 23:27:16 | 69.98,-175.49 | 62.00 | 3.27 | 49 |
| 9 | 09/04/2025 | 14:03:35 | 70.24, -34.79 | 63.23 | 09/04/2025 | 14:04:46 | 70.22, -34.53 | 63.20 | 9.79 | 71 |
| 10 | 09/04/2025 | 14:54:15 | -70.02, 132.86 | 116.99 | 09/04/2025 | 14:54:18 | -70.00, 132.79 | 117.01 | 3.19 | 3 |
| 11 | 09/04/2025 | 15:44:58 | 69.87, -59.61 | 62.87 | 09/04/2025 | 15:43:45 | 69.89, -59.72 | 62.90 | 4.79 | 73 |
| 12 | 09/07/2025 | 06:20:27 | 70.11, 81.17 | 64.09 | 09/07/2025 | 06:21:15 | 70.12, 81.21 | 64.09 | 1.50 | 48 |
| 13 | 09/07/2025 | 07:11:09 | -70.00,-111.34 | 116.02 | 09/07/2025 | 07:10:45 | -70.01,-111.30 | 116.01 | 1.81 | 24 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/26/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/26/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8