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: 4/28/2025
| 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 | 04/28/2025 | 06:44:51 | -70.17,-104.98 | 124.16 | 04/28/2025 | 06:45:46 | -70.17,-105.04 | 124.16 | 2.36 | 55 |
| 2 | 04/28/2025 | 07:35:35 | 70.07, 62.48 | 55.73 | 04/28/2025 | 07:35:13 | 70.07, 62.46 | 55.73 | 0.89 | 22 |
| 3 | 04/28/2025 | 08:26:03 | -69.22,-128.96 | 125.16 | 04/28/2025 | 08:24:55 | -69.30,-130.97 | 125.03 | 79.60 | 68 |
| 4 | 04/30/2025 | 22:11:25 | 71.18,-158.18 | 56.08 | 04/30/2025 | 22:12:30 | 71.09,-155.42 | 55.93 | 99.76 | 65 |
| 5 | 04/30/2025 | 23:01:50 | -70.17, 10.76 | 124.98 | 04/30/2025 | 23:02:15 | -70.16, 10.81 | 125.00 | 2.32 | 25 |
| 6 | 04/30/2025 | 23:52:34 | 70.07, 178.23 | 54.91 | 04/30/2025 | 23:51:42 | 70.06, 178.31 | 54.89 | 3.72 | 52 |
| 7 | 05/03/2025 | 14:28:04 | 70.20, -40.83 | 54.26 | 05/03/2025 | 14:29:13 | 70.21, -40.87 | 54.27 | 2.27 | 69 |
| 8 | 05/03/2025 | 15:18:46 | -70.09, 126.65 | 125.87 | 05/03/2025 | 15:18:43 | -70.10, 126.61 | 125.85 | 2.60 | 3 |
| 9 | 05/03/2025 | 16:09:25 | 69.72, -65.49 | 53.75 | 05/03/2025 | 16:08:13 | 69.83, -66.13 | 53.87 | 27.52 | 72 |
| 10 | 05/06/2025 | 06:45:02 | 70.17, 74.96 | 53.47 | 05/06/2025 | 06:45:41 | 70.16, 74.94 | 53.45 | 1.46 | 39 |
| 11 | 05/06/2025 | 07:35:44 | -70.06,-117.55 | 126.66 | 05/06/2025 | 07:35:11 | -70.05,-117.58 | 126.67 | 1.36 | 33 |
| 12 | 05/08/2025 | 22:11:24 | -70.68, 22.60 | 126.73 | 05/08/2025 | 22:12:34 | -70.62, 23.85 | 126.83 | 46.40 | 70 |
| 13 | 05/08/2025 | 23:01:59 | 70.11,-169.18 | 52.67 | 05/08/2025 | 23:02:08 | 70.12,-169.23 | 52.68 | 2.38 | 9 |
| 14 | 05/08/2025 | 23:52:41 | -70.00, -1.70 | 127.45 | 05/08/2025 | 23:51:38 | -70.02, -1.75 | 127.43 | 2.50 | 63 |
| 15 | 05/11/2025 | 14:28:13 | -70.21, 139.11 | 127.91 | 05/11/2025 | 14:29:07 | -70.21, 139.13 | 127.92 | 1.14 | 54 |
| 16 | 05/11/2025 | 15:18:57 | 70.11, -53.43 | 51.98 | 05/11/2025 | 15:18:34 | 70.09, -53.39 | 51.96 | 2.48 | 23 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/28/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/28/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9