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: 4/8/2025
| 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 | 04/08/2025 | 06:19:49 | -70.24, -98.81 | 117.13 | 04/08/2025 | 06:20:54 | -70.22, -98.79 | 117.15 | 1.86 | 65 |
| 2 | 04/08/2025 | 07:10:32 | 70.10, 68.71 | 62.72 | 04/08/2025 | 07:10:21 | 70.12, 68.71 | 62.74 | 2.53 | 11 |
| 3 | 04/08/2025 | 08:01:08 | -69.67,-123.32 | 117.75 | 04/08/2025 | 07:59:56 | -69.73,-124.20 | 117.65 | 34.59 | 72 |
| 4 | 04/10/2025 | 22:36:39 | -70.17, 17.08 | 118.19 | 04/10/2025 | 22:37:21 | -70.19, 17.05 | 118.18 | 2.61 | 42 |
| 5 | 04/10/2025 | 23:27:23 | 70.09,-175.49 | 61.71 | 04/10/2025 | 23:26:48 | 70.09,-175.45 | 61.71 | 1.28 | 35 |
| 6 | 04/13/2025 | 14:03:00 | 70.92, -35.66 | 61.63 | 04/13/2025 | 14:04:08 | 70.78, -33.83 | 61.43 | 68.72 | 68 |
| 7 | 04/13/2025 | 14:53:30 | -70.17, 132.87 | 119.17 | 04/13/2025 | 14:53:47 | -70.17, 132.91 | 119.18 | 1.75 | 17 |
| 8 | 04/13/2025 | 15:44:13 | 70.04, -59.62 | 60.68 | 04/13/2025 | 15:43:14 | 70.07, -59.60 | 60.71 | 3.04 | 59 |
| 9 | 04/16/2025 | 06:19:37 | 70.21, 81.29 | 59.92 | 04/16/2025 | 06:20:43 | 70.22, 81.24 | 59.93 | 2.68 | 66 |
| 10 | 04/16/2025 | 07:10:20 | -70.13,-111.29 | 120.18 | 04/16/2025 | 07:10:13 | -70.11,-111.29 | 120.20 | 2.29 | 7 |
| 11 | 04/16/2025 | 08:00:56 | 69.63, 56.77 | 59.30 | 04/16/2025 | 07:59:45 | 69.73, 55.82 | 59.42 | 38.11 | 71 |
| 12 | 04/18/2025 | 22:36:26 | 70.18,-162.89 | 58.95 | 04/18/2025 | 22:37:07 | 70.17,-162.94 | 58.93 | 2.53 | 41 |
| 13 | 04/18/2025 | 23:27:09 | -70.11, 4.54 | 121.14 | 04/18/2025 | 23:26:36 | -70.11, 4.61 | 121.14 | 2.78 | 33 |
| 14 | 04/21/2025 | 14:02:45 | -70.92, 144.40 | 121.19 | 04/21/2025 | 14:03:53 | -70.84, 146.30 | 121.32 | 69.87 | 68 |
| 15 | 04/21/2025 | 14:53:16 | 70.17, -47.08 | 58.02 | 04/21/2025 | 14:53:30 | 70.18, -47.03 | 58.03 | 2.31 | 14 |
| 16 | 04/21/2025 | 15:43:58 | -70.04, 120.43 | 122.13 | 04/21/2025 | 15:43:01 | -70.02, 120.37 | 122.15 | 3.46 | 57 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/8/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/08/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8