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: 4/27/2025
| 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 | 06:44:52 | -70.21,-105.05 | 124.12 | 04/28/2025 | 06:45:46 | -70.19,-105.03 | 124.15 | 3.09 | 54 |
| 2 | 04/28/2025 | 07:35:35 | 70.06, 62.49 | 55.72 | 04/28/2025 | 07:35:13 | 70.08, 62.47 | 55.74 | 2.57 | 22 |
| 3 | 04/28/2025 | 08:26:03 | -69.21,-128.94 | 125.17 | 04/28/2025 | 08:24:56 | -69.26,-131.02 | 125.07 | 82.13 | 67 |
| 4 | 04/30/2025 | 22:11:24 | 71.17,-158.17 | 56.07 | 04/30/2025 | 22:12:30 | 71.05,-155.49 | 55.89 | 97.43 | 66 |
| 5 | 04/30/2025 | 23:01:49 | -70.16, 10.78 | 124.99 | 04/30/2025 | 23:02:14 | -70.18, 10.83 | 124.99 | 2.44 | 25 |
| 6 | 04/30/2025 | 23:52:32 | 70.01, 178.32 | 54.84 | 04/30/2025 | 23:51:42 | 70.02, 178.25 | 54.85 | 2.71 | 50 |
| 7 | 05/03/2025 | 14:28:05 | 70.24, -40.90 | 54.30 | 05/03/2025 | 14:29:13 | 70.23, -40.84 | 54.29 | 2.18 | 68 |
| 8 | 05/03/2025 | 15:18:47 | -70.13, 126.59 | 125.83 | 05/03/2025 | 15:18:43 | -70.12, 126.64 | 125.83 | 1.72 | 4 |
| 9 | 05/03/2025 | 16:09:26 | 69.76, -65.55 | 53.79 | 05/03/2025 | 16:08:14 | 69.79, -66.18 | 53.84 | 24.46 | 72 |
| 10 | 05/06/2025 | 06:45:02 | 70.16, 74.98 | 53.46 | 05/06/2025 | 06:45:41 | 70.19, 74.98 | 53.48 | 3.28 | 39 |
| 11 | 05/06/2025 | 07:35:45 | -70.10,-117.62 | 126.62 | 05/06/2025 | 07:35:11 | -70.08,-117.54 | 126.64 | 3.54 | 34 |
| 12 | 05/08/2025 | 22:11:25 | -70.72, 22.54 | 126.69 | 05/08/2025 | 22:12:35 | -70.60, 23.82 | 126.84 | 48.85 | 70 |
| 13 | 05/08/2025 | 23:02:00 | 70.15,-169.24 | 52.71 | 05/08/2025 | 23:02:08 | 70.16,-169.18 | 52.72 | 2.73 | 8 |
| 14 | 05/08/2025 | 23:52:42 | -70.04, -1.76 | 127.42 | 05/08/2025 | 23:51:38 | -70.05, -1.70 | 127.40 | 3.05 | 64 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/27/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/27/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9