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: 4/10/2025
| 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 | 04/10/2025 | 22:36:40 | -70.22, 17.01 | 118.15 | 04/10/2025 | 22:37:22 | -70.20, 17.06 | 118.17 | 2.61 | 42 |
| 2 | 04/10/2025 | 23:27:23 | 70.08,-175.47 | 61.70 | 04/10/2025 | 23:26:49 | 70.10,-175.44 | 61.73 | 2.74 | 34 |
| 3 | 04/13/2025 | 14:03:02 | 71.02, -35.82 | 61.73 | 04/13/2025 | 14:04:09 | 70.92, -33.63 | 61.56 | 80.15 | 67 |
| 4 | 04/13/2025 | 14:53:30 | -70.16, 132.88 | 119.18 | 04/13/2025 | 14:53:51 | -70.15, 132.86 | 119.20 | 1.69 | 21 |
| 5 | 04/13/2025 | 15:44:13 | 70.03, -59.61 | 60.67 | 04/13/2025 | 15:43:18 | 70.04, -59.64 | 60.69 | 1.95 | 55 |
| 6 | 04/16/2025 | 06:19:37 | 70.24, 81.23 | 59.96 | 04/16/2025 | 06:20:47 | 70.27, 81.28 | 59.97 | 3.15 | 70 |
| 7 | 04/16/2025 | 07:10:19 | -70.12,-111.27 | 120.19 | 04/16/2025 | 07:10:18 | -70.10,-111.33 | 120.21 | 3.04 | 1 |
| 8 | 04/16/2025 | 08:00:59 | 69.83, 56.48 | 59.50 | 04/16/2025 | 07:59:47 | 69.88, 56.01 | 59.57 | 18.68 | 72 |
| 9 | 04/18/2025 | 22:36:27 | 70.22,-162.94 | 58.99 | 04/18/2025 | 22:37:14 | 70.22,-162.90 | 58.99 | 1.80 | 47 |
| 10 | 04/18/2025 | 23:27:09 | -70.09, 4.57 | 121.16 | 04/18/2025 | 23:26:44 | -70.12, 4.58 | 121.14 | 2.84 | 25 |
| 11 | 04/21/2025 | 14:53:17 | 70.20, -47.13 | 58.05 | 04/21/2025 | 14:53:40 | 70.19, -47.06 | 58.03 | 2.68 | 23 |
| 12 | 04/21/2025 | 15:43:59 | -70.07, 120.38 | 122.10 | 04/21/2025 | 15:43:10 | -70.08, 120.42 | 122.09 | 1.75 | 49 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/10/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/10/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8