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: 12/3/2025
| 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 | -70.40, -99.17 | 87.43 | 12/04/2025 | 06:21:30 | -70.29, -98.63 | 87.55 | 23.57 | 71 |
| 2 | 12/04/2025 | 07:10:58 | 70.03, 68.70 | 92.21 | 12/04/2025 | 07:11:00 | 70.02, 68.64 | 92.20 | 2.79 | 2 |
| 3 | 12/04/2025 | 08:01:41 | -69.98,-123.89 | 87.85 | 12/04/2025 | 08:00:29 | -69.96,-123.81 | 87.86 | 3.26 | 72 |
| 4 | 12/06/2025 | 22:37:13 | -70.09, 17.06 | 87.41 | 12/06/2025 | 22:38:00 | -70.11, 17.00 | 87.40 | 3.15 | 47 |
| 5 | 12/06/2025 | 23:27:57 | 70.00,-175.48 | 92.50 | 12/06/2025 | 23:27:27 | 70.00,-175.51 | 92.50 | 1.15 | 30 |
| 6 | 12/09/2025 | 14:03:40 | 70.70, -35.47 | 93.49 | 12/09/2025 | 14:04:49 | 70.61, -34.02 | 93.38 | 54.53 | 69 |
| 7 | 12/09/2025 | 14:54:12 | -70.05, 132.88 | 87.17 | 12/09/2025 | 14:54:27 | -70.06, 132.82 | 87.17 | 2.27 | 15 |
| 8 | 12/09/2025 | 15:44:56 | 69.97, -59.68 | 92.75 | 12/09/2025 | 15:43:54 | 69.95, -59.69 | 92.73 | 2.15 | 62 |
| 9 | 12/12/2025 | 06:20:28 | 70.16, 81.16 | 93.16 | 12/12/2025 | 06:21:22 | 70.14, 81.19 | 93.14 | 2.19 | 54 |
| 10 | 12/12/2025 | 07:11:10 | -70.03,-111.32 | 86.98 | 12/12/2025 | 07:10:52 | -70.03,-111.33 | 86.97 | 0.41 | 18 |
| 11 | 12/12/2025 | 08:01:39 | 69.15, 57.27 | 92.14 | 12/12/2025 | 08:00:32 | 69.20, 55.19 | 92.21 | 82.47 | 67 |
| 12 | 12/14/2025 | 21:47:00 | -71.11, 28.06 | 85.70 | 12/14/2025 | 21:48:06 | -71.01, 30.75 | 85.83 | 97.61 | 66 |
| 13 | 12/14/2025 | 22:37:26 | 70.09,-162.98 | 93.26 | 12/14/2025 | 22:37:48 | 70.08,-162.99 | 93.25 | 1.15 | 22 |
| 14 | 12/14/2025 | 23:28:08 | -69.96, 4.54 | 86.88 | 12/14/2025 | 23:27:18 | -69.97, 4.49 | 86.86 | 2.78 | 50 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 12/3/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 12/03/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8