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: 11/30/2025
| 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 | 12/01/2025 | 14:54:00 | 70.10, -47.16 | 91.90 | 12/01/2025 | 14:54:32 | 70.10, -47.14 | 91.90 | 0.79 | 32 |
| 2 | 12/01/2025 | 15:44:42 | -70.00, 120.32 | 88.21 | 12/01/2025 | 15:44:02 | -69.99, 120.34 | 88.22 | 0.80 | 40 |
| 3 | 12/04/2025 | 06:20:18 | -70.36, -99.11 | 87.47 | 12/04/2025 | 06:21:30 | -70.28, -98.65 | 87.56 | 19.83 | 72 |
| 4 | 12/04/2025 | 07:10:58 | 70.05, 68.67 | 92.23 | 12/04/2025 | 07:10:59 | 70.06, 68.69 | 92.23 | 1.00 | 1 |
| 5 | 12/04/2025 | 08:01:40 | -69.94,-123.84 | 87.89 | 12/04/2025 | 08:00:29 | -69.95,-123.83 | 87.88 | 1.21 | 71 |
| 6 | 12/06/2025 | 22:37:13 | -70.10, 17.05 | 87.40 | 12/06/2025 | 22:38:00 | -70.10, 16.99 | 87.40 | 2.05 | 47 |
| 7 | 12/06/2025 | 23:27:57 | 70.01,-175.50 | 92.51 | 12/06/2025 | 23:27:27 | 69.99,-175.52 | 92.50 | 2.08 | 30 |
| 8 | 12/09/2025 | 14:03:40 | 70.71, -35.48 | 93.50 | 12/09/2025 | 14:04:49 | 70.61, -34.01 | 93.38 | 55.50 | 69 |
| 9 | 12/09/2025 | 14:54:12 | -70.06, 132.87 | 87.17 | 12/09/2025 | 14:54:27 | -70.07, 132.83 | 87.16 | 1.50 | 15 |
| 10 | 12/09/2025 | 15:44:56 | 69.97, -59.69 | 92.76 | 12/09/2025 | 15:43:54 | 69.95, -59.68 | 92.73 | 2.39 | 62 |
| 11 | 12/12/2025 | 06:20:29 | 70.16, 81.16 | 93.16 | 12/12/2025 | 06:21:23 | 70.16, 81.23 | 93.16 | 2.80 | 54 |
| 12 | 12/12/2025 | 07:11:11 | -70.03,-111.33 | 86.98 | 12/12/2025 | 07:10:54 | -70.00,-111.36 | 87.00 | 2.83 | 17 |
| 13 | 12/12/2025 | 08:01:41 | 69.20, 57.19 | 92.19 | 12/12/2025 | 08:00:33 | 69.23, 55.22 | 92.24 | 77.71 | 68 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/30/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/30/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8