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: 10/6/2025
| 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 | 10/06/2025 | 14:53:52 | -70.11, 132.83 | 104.63 | 10/06/2025 | 14:54:33 | -70.09, 132.85 | 104.65 | 2.12 | 41 |
| 2 | 10/06/2025 | 15:44:36 | 69.96, -59.64 | 75.24 | 10/06/2025 | 15:44:00 | 69.99, -59.65 | 75.26 | 2.96 | 36 |
| 3 | 10/09/2025 | 06:20:14 | 70.85, 80.10 | 77.14 | 10/09/2025 | 06:21:22 | 70.75, 82.08 | 77.03 | 72.97 | 68 |
| 4 | 10/09/2025 | 07:10:42 | -70.06,-111.31 | 103.66 | 10/09/2025 | 07:11:03 | -70.04,-111.34 | 103.68 | 2.28 | 21 |
| 5 | 10/09/2025 | 08:01:26 | 69.92, 56.21 | 76.21 | 10/09/2025 | 08:00:30 | 69.94, 56.16 | 76.23 | 3.04 | 56 |
| 6 | 10/11/2025 | 22:36:52 | 70.14,-162.96 | 77.42 | 10/11/2025 | 22:38:03 | 70.12,-162.98 | 77.40 | 1.82 | 71 |
| 7 | 10/11/2025 | 23:27:33 | -70.02, 4.53 | 102.69 | 10/11/2025 | 23:27:33 | -70.01, 4.50 | 102.70 | 1.54 | 0 |
| 8 | 10/12/2025 | 00:18:14 | 69.72, 172.29 | 77.03 | 10/12/2025 | 00:17:02 | 69.79, 171.84 | 77.10 | 18.95 | 72 |
| 9 | 10/14/2025 | 14:53:43 | 70.11, -47.14 | 78.39 | 10/14/2025 | 14:54:32 | 70.11, -47.11 | 78.39 | 0.92 | 49 |
| 10 | 10/14/2025 | 15:44:24 | -70.00, 120.36 | 101.71 | 10/14/2025 | 15:44:02 | -70.01, 120.37 | 101.71 | 1.02 | 22 |
| 11 | 10/14/2025 | 16:34:51 | 68.95, -70.83 | 77.26 | 10/14/2025 | 16:33:45 | 69.01, -73.32 | 77.31 | 99.67 | 66 |
| 12 | 10/17/2025 | 07:10:33 | 70.05, 68.76 | 79.31 | 10/17/2025 | 07:11:01 | 70.06, 68.71 | 79.33 | 2.69 | 28 |
| 13 | 10/17/2025 | 08:01:15 | -69.98,-123.83 | 100.74 | 10/17/2025 | 08:00:31 | -69.96,-123.80 | 100.77 | 2.48 | 44 |
| 14 | 10/19/2025 | 22:36:46 | -70.54, 16.46 | 99.24 | 10/19/2025 | 22:37:56 | -70.43, 17.48 | 99.35 | 39.90 | 70 |
| 15 | 10/19/2025 | 23:27:23 | 70.04,-175.45 | 80.28 | 10/19/2025 | 23:27:28 | 70.04,-175.44 | 80.27 | 0.71 | 5 |
| 16 | 10/20/2025 | 00:18:04 | -69.92, -7.95 | 99.83 | 10/20/2025 | 00:16:58 | -69.94, -7.95 | 99.82 | 1.49 | 66 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/6/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/06/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8