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: 12/4/2025
| 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 | 06:20:18 | -70.36, -99.11 | 87.47 | 12/04/2025 | 06:21:30 | -70.27, -98.65 | 87.56 | 19.69 | 72 |
| 2 | 12/04/2025 | 07:10:58 | 70.05, 68.68 | 92.22 | 12/04/2025 | 07:10:59 | 70.06, 68.69 | 92.24 | 1.55 | 1 |
| 3 | 12/04/2025 | 08:01:40 | -69.94,-123.84 | 87.89 | 12/04/2025 | 08:00:29 | -69.95,-123.84 | 87.88 | 0.89 | 71 |
| 4 | 12/06/2025 | 22:37:13 | -70.11, 17.04 | 87.40 | 12/06/2025 | 22:37:59 | -70.12, 17.02 | 87.38 | 1.74 | 46 |
| 5 | 12/06/2025 | 23:27:57 | 70.01,-175.51 | 92.52 | 12/06/2025 | 23:27:26 | 70.02,-175.48 | 92.52 | 1.08 | 31 |
| 6 | 12/09/2025 | 14:03:39 | 70.67, -35.42 | 93.46 | 12/09/2025 | 14:04:48 | 70.59, -34.03 | 93.36 | 51.95 | 69 |
| 7 | 12/09/2025 | 14:54:12 | -70.08, 132.84 | 87.15 | 12/09/2025 | 14:54:25 | -70.10, 132.88 | 87.13 | 2.32 | 13 |
| 8 | 12/09/2025 | 15:44:55 | 69.94, -59.63 | 92.72 | 12/09/2025 | 15:43:53 | 69.93, -59.71 | 92.71 | 2.96 | 62 |
| 9 | 12/12/2025 | 06:20:28 | 70.14, 81.19 | 93.14 | 12/12/2025 | 06:21:21 | 70.13, 81.20 | 93.13 | 0.17 | 53 |
| 10 | 12/12/2025 | 07:11:10 | -70.01,-111.30 | 86.99 | 12/12/2025 | 07:10:51 | -70.03,-111.33 | 86.98 | 2.16 | 19 |
| 11 | 12/12/2025 | 08:01:39 | 69.13, 57.30 | 92.12 | 12/12/2025 | 08:00:32 | 69.14, 55.12 | 92.16 | 86.37 | 67 |
| 12 | 12/14/2025 | 21:46:58 | -71.05, 28.17 | 85.76 | 12/14/2025 | 21:48:04 | -70.95, 30.67 | 85.89 | 91.35 | 66 |
| 13 | 12/14/2025 | 22:37:25 | 70.08,-162.96 | 93.25 | 12/14/2025 | 22:37:45 | 70.07,-162.99 | 93.24 | 1.25 | 20 |
| 14 | 12/14/2025 | 23:28:07 | -69.95, 4.55 | 86.88 | 12/14/2025 | 23:27:15 | -69.97, 4.49 | 86.87 | 2.97 | 52 |
| 15 | 12/17/2025 | 14:03:40 | -70.17, 145.36 | 86.55 | 12/17/2025 | 14:04:42 | -70.14, 145.37 | 86.58 | 2.36 | 62 |
| 16 | 12/17/2025 | 14:54:23 | 70.04, -47.14 | 93.33 | 12/17/2025 | 14:54:09 | 70.03, -47.15 | 93.31 | 1.35 | 14 |
| 17 | 12/17/2025 | 15:44:57 | -69.48, 121.01 | 87.25 | 12/17/2025 | 15:43:46 | -69.54, 119.80 | 87.17 | 47.24 | 71 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 12/4/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 12/04/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8