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: 10/5/2025
| 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 | 14:53:51 | -70.07, 132.88 | 104.67 | 10/06/2025 | 14:54:33 | -70.07, 132.83 | 104.67 | 2.13 | 42 |
| 2 | 10/06/2025 | 15:44:36 | 69.98, -59.67 | 75.26 | 10/06/2025 | 15:44:00 | 69.97, -59.67 | 75.24 | 1.47 | 36 |
| 3 | 10/09/2025 | 06:20:15 | 70.87, 80.07 | 77.16 | 10/09/2025 | 06:21:22 | 70.78, 82.12 | 77.06 | 75.70 | 67 |
| 4 | 10/09/2025 | 07:10:43 | -70.08,-111.34 | 103.64 | 10/09/2025 | 07:11:03 | -70.07,-111.29 | 103.65 | 2.08 | 20 |
| 5 | 10/09/2025 | 08:01:27 | 69.94, 56.18 | 76.23 | 10/09/2025 | 08:00:30 | 69.97, 56.20 | 76.26 | 3.37 | 57 |
| 6 | 10/11/2025 | 22:36:53 | 70.16,-163.00 | 77.44 | 10/11/2025 | 22:38:03 | 70.14,-162.95 | 77.42 | 2.72 | 70 |
| 7 | 10/11/2025 | 23:27:34 | -70.05, 4.50 | 102.66 | 10/11/2025 | 23:27:33 | -70.04, 4.54 | 102.68 | 1.92 | 1 |
| 8 | 10/12/2025 | 00:18:15 | 69.75, 172.25 | 77.05 | 10/12/2025 | 00:17:02 | 69.82, 171.87 | 77.12 | 16.53 | 73 |
| 9 | 10/14/2025 | 14:53:42 | 70.09, -47.10 | 78.37 | 10/14/2025 | 14:54:31 | 70.12, -47.10 | 78.40 | 3.39 | 49 |
| 10 | 10/14/2025 | 15:44:24 | -70.02, 120.32 | 101.69 | 10/14/2025 | 15:44:01 | -70.01, 120.39 | 101.70 | 2.87 | 23 |
| 11 | 10/17/2025 | 07:10:33 | 70.08, 68.71 | 79.34 | 10/17/2025 | 07:11:00 | 70.05, 68.69 | 79.32 | 2.90 | 27 |
| 12 | 10/17/2025 | 08:01:14 | -69.96,-123.80 | 100.77 | 10/17/2025 | 08:00:30 | -69.95,-123.81 | 100.78 | 1.29 | 44 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/5/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/05/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8