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: 6/1/2025
| 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 | 06/01/2025 | 22:11:39 | 70.16,-156.69 | 47.91 | 06/01/2025 | 22:12:29 | 70.14,-156.72 | 47.89 | 2.17 | 50 |
| 2 | 06/01/2025 | 23:02:20 | -70.05, 10.81 | 132.22 | 06/01/2025 | 23:01:59 | -70.02, 10.75 | 132.24 | 3.44 | 21 |
| 3 | 06/04/2025 | 14:28:36 | 70.14, -40.90 | 47.57 | 06/04/2025 | 14:28:57 | 70.14, -40.83 | 47.56 | 2.52 | 21 |
| 4 | 06/04/2025 | 15:19:17 | -70.03, 126.60 | 132.56 | 06/04/2025 | 15:18:27 | -70.02, 126.64 | 132.56 | 1.54 | 50 |
| 5 | 06/07/2025 | 05:54:47 | -70.17, -92.48 | 132.67 | 06/07/2025 | 05:55:59 | -70.16, -92.56 | 132.70 | 3.19 | 72 |
| 6 | 06/07/2025 | 06:45:32 | 70.08, 74.96 | 47.23 | 06/07/2025 | 06:45:26 | 70.05, 74.94 | 47.20 | 3.00 | 6 |
| 7 | 06/07/2025 | 07:36:10 | -69.80,-117.30 | 133.06 | 06/07/2025 | 07:34:57 | -69.88,-117.67 | 132.96 | 16.52 | 73 |
| 8 | 06/09/2025 | 22:11:44 | -70.16, 23.29 | 132.91 | 06/09/2025 | 22:12:26 | -70.15, 23.33 | 132.93 | 2.04 | 42 |
| 9 | 06/09/2025 | 23:02:28 | 70.02,-169.19 | 46.95 | 06/09/2025 | 23:01:53 | 70.04,-169.18 | 46.97 | 2.56 | 35 |
| 10 | 06/12/2025 | 13:38:06 | 70.65, -29.04 | 47.43 | 06/12/2025 | 13:39:16 | 70.55, -27.82 | 47.29 | 46.53 | 70 |
| 11 | 06/12/2025 | 14:28:39 | -70.11, 139.13 | 133.14 | 06/12/2025 | 14:28:52 | -70.12, 139.17 | 133.14 | 1.75 | 13 |
| 12 | 06/12/2025 | 15:19:23 | 69.97, -53.35 | 46.72 | 06/12/2025 | 15:18:20 | 69.95, -53.42 | 46.70 | 3.49 | 63 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/1/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/01/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9