Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/5/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 04/06/2025 | 22:11:37 | -70.90, 22.23 | 115.92 | 04/06/2025 | 22:12:45 | -70.80, 24.14 | 116.09 | 70.91 | 68 |
| 2 | 04/06/2025 | 23:02:08 | 70.14,-169.24 | 63.26 | 04/06/2025 | 23:02:22 | 70.15,-169.17 | 63.27 | 3.01 | 14 |
| 3 | 04/06/2025 | 23:52:50 | -70.02, -1.75 | 116.87 | 04/06/2025 | 23:51:52 | -70.05, -1.69 | 116.85 | 3.27 | 58 |
| 4 | 04/09/2025 | 14:28:15 | -70.26, 139.05 | 117.61 | 04/09/2025 | 14:29:26 | -70.24, 139.17 | 117.64 | 4.88 | 71 |
| 5 | 04/09/2025 | 15:18:57 | 70.07, -53.35 | 62.19 | 04/09/2025 | 15:18:54 | 70.08, -53.41 | 62.20 | 2.51 | 3 |
| 6 | 04/09/2025 | 16:09:38 | -69.90, 114.23 | 118.01 | 04/09/2025 | 16:08:25 | -69.92, 114.00 | 117.97 | 9.06 | 73 |
| 7 | 04/12/2025 | 06:45:05 | -70.20,-105.07 | 118.66 | 04/12/2025 | 06:45:58 | -70.22,-104.99 | 118.65 | 3.49 | 53 |
| 8 | 04/12/2025 | 07:35:48 | 70.07, 62.44 | 61.20 | 04/12/2025 | 07:35:26 | 70.05, 62.42 | 61.18 | 2.15 | 22 |
| 9 | 04/12/2025 | 08:26:16 | -69.21,-128.98 | 119.71 | 04/12/2025 | 08:25:08 | -69.29,-130.99 | 119.57 | 79.63 | 68 |
| 10 | 04/14/2025 | 23:01:55 | -70.16, 10.78 | 119.67 | 04/14/2025 | 23:02:31 | -70.14, 10.75 | 119.70 | 2.64 | 36 |
| 11 | 04/14/2025 | 23:52:38 | 70.03, 178.28 | 60.19 | 04/14/2025 | 23:51:58 | 70.02, 178.24 | 60.19 | 1.95 | 40 |
| 12 | 04/17/2025 | 14:28:15 | 70.89, -41.92 | 60.16 | 04/17/2025 | 14:29:23 | 70.75, -40.11 | 59.97 | 67.87 | 68 |
| 13 | 04/17/2025 | 15:18:45 | -70.13, 126.61 | 120.65 | 04/17/2025 | 15:19:03 | -70.10, 126.57 | 120.68 | 3.30 | 18 |
| 14 | 04/17/2025 | 16:09:28 | 70.01, -65.89 | 59.21 | 04/17/2025 | 16:08:30 | 69.99, -65.94 | 59.20 | 2.84 | 58 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/5/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/05/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9