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: 1/12/2025
| 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 | 01/12/2025 | 21:47:04 | -71.18, 28.05 | 87.30 | 01/12/2025 | 21:48:10 | -71.08, 30.78 | 87.50 | 98.76 | 66 |
| 2 | 01/12/2025 | 22:37:31 | 70.18,-163.01 | 91.65 | 01/12/2025 | 22:37:52 | 70.16,-162.95 | 91.62 | 2.98 | 21 |
| 3 | 01/12/2025 | 23:28:12 | -70.05, 4.52 | 88.51 | 01/12/2025 | 23:27:22 | -70.05, 4.52 | 88.50 | 0.05 | 50 |
| 4 | 01/15/2025 | 14:03:40 | -70.53, 144.93 | 88.45 | 01/15/2025 | 14:04:51 | -70.41, 145.64 | 88.61 | 29.94 | 71 |
| 5 | 01/15/2025 | 14:54:19 | 70.16, -47.18 | 91.15 | 01/15/2025 | 14:54:21 | 70.14, -47.10 | 91.13 | 3.23 | 2 |
| 6 | 01/15/2025 | 15:45:00 | -70.02, 120.35 | 89.00 | 01/15/2025 | 15:43:51 | -70.03, 120.37 | 88.99 | 1.32 | 69 |
| 7 | 01/18/2025 | 06:20:21 | -70.20, -98.76 | 89.32 | 01/18/2025 | 06:21:22 | -70.20, -98.79 | 89.34 | 1.18 | 61 |
| 8 | 01/18/2025 | 07:11:05 | 70.09, 68.72 | 90.56 | 01/18/2025 | 07:10:49 | 70.09, 68.71 | 90.56 | 0.61 | 16 |
| 9 | 01/18/2025 | 08:01:37 | -69.48,-123.06 | 90.09 | 01/18/2025 | 08:00:27 | -69.54,-124.42 | 89.97 | 53.56 | 70 |
| 10 | 01/20/2025 | 22:37:09 | -70.20, 17.04 | 89.89 | 01/20/2025 | 22:37:50 | -70.17, 17.06 | 89.93 | 3.35 | 41 |
| 11 | 01/20/2025 | 23:27:53 | 70.08,-175.47 | 89.99 | 01/20/2025 | 23:27:17 | 70.06,-175.45 | 89.96 | 2.79 | 36 |
| 12 | 01/23/2025 | 14:03:29 | 71.02, -35.80 | 90.38 | 01/23/2025 | 14:04:36 | 70.87, -33.64 | 90.14 | 80.25 | 67 |
| 13 | 01/23/2025 | 14:53:56 | -70.15, 132.91 | 90.55 | 01/23/2025 | 14:54:17 | -70.16, 132.94 | 90.55 | 1.66 | 21 |
| 14 | 01/23/2025 | 15:44:40 | 70.03, -59.60 | 89.32 | 01/23/2025 | 15:43:44 | 70.05, -59.58 | 89.34 | 1.98 | 56 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 1/12/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 01/12/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8