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: 12/2/2025
| 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 | 12/04/2025 | 06:20:19 | -70.37, -99.13 | 87.46 | 12/04/2025 | 06:21:31 | -70.27, -98.66 | 87.57 | 21.01 | 72 |
| 2 | 12/04/2025 | 07:10:59 | 70.06, 68.66 | 92.24 | 12/04/2025 | 07:11:00 | 70.05, 68.68 | 92.23 | 1.17 | 1 |
| 3 | 12/04/2025 | 08:01:41 | -69.95,-123.85 | 87.88 | 12/04/2025 | 08:00:30 | -69.94,-123.85 | 87.89 | 1.17 | 71 |
| 4 | 12/06/2025 | 22:37:13 | -70.11, 17.03 | 87.39 | 12/06/2025 | 22:38:00 | -70.09, 16.97 | 87.42 | 3.38 | 47 |
| 5 | 12/06/2025 | 23:27:57 | 70.02,-175.52 | 92.52 | 12/06/2025 | 23:27:26 | 70.04,-175.46 | 92.54 | 2.99 | 31 |
| 6 | 12/09/2025 | 14:03:40 | 70.72, -35.50 | 93.51 | 12/09/2025 | 14:04:49 | 70.60, -34.03 | 93.37 | 55.81 | 69 |
| 7 | 12/09/2025 | 14:54:12 | -70.07, 132.85 | 87.16 | 12/09/2025 | 14:54:27 | -70.05, 132.81 | 87.18 | 2.81 | 15 |
| 8 | 12/09/2025 | 15:44:55 | 69.93, -59.63 | 92.71 | 12/09/2025 | 15:43:54 | 69.94, -59.70 | 92.72 | 3.10 | 61 |
| 9 | 12/12/2025 | 06:20:29 | 70.17, 81.14 | 93.17 | 12/12/2025 | 06:21:23 | 70.15, 81.20 | 93.14 | 3.14 | 54 |
| 10 | 12/12/2025 | 07:11:11 | -70.04,-111.34 | 86.97 | 12/12/2025 | 07:10:53 | -70.04,-111.32 | 86.96 | 1.03 | 18 |
| 11 | 12/12/2025 | 08:01:40 | 69.16, 57.25 | 92.15 | 12/12/2025 | 08:00:33 | 69.21, 55.20 | 92.22 | 81.39 | 67 |
| 12 | 12/14/2025 | 22:37:27 | 70.09,-162.98 | 93.26 | 12/14/2025 | 22:37:49 | 70.11,-162.96 | 93.28 | 2.04 | 22 |
| 13 | 12/14/2025 | 23:28:10 | -70.01, 4.46 | 86.82 | 12/14/2025 | 23:27:19 | -70.00, 4.53 | 86.83 | 2.78 | 51 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 12/2/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 12/02/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8