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: 5/31/2025
| 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,-156.70 | 47.91 | 06/01/2025 | 22:12:29 | 70.14,-156.72 | 47.88 | 3.08 | 50 |
| 2 | 06/01/2025 | 23:02:20 | -70.05, 10.80 | 132.21 | 06/01/2025 | 23:01:58 | -70.08, 10.82 | 132.19 | 2.92 | 22 |
| 3 | 06/01/2025 | 23:52:47 | 69.00, 179.63 | 46.71 | 06/01/2025 | 23:51:41 | 69.09, 177.13 | 46.87 | 99.85 | 66 |
| 4 | 06/04/2025 | 14:28:35 | 70.09, -40.83 | 47.52 | 06/04/2025 | 14:28:58 | 70.09, -40.90 | 47.52 | 2.87 | 23 |
| 5 | 06/04/2025 | 15:19:17 | -70.03, 126.59 | 132.55 | 06/04/2025 | 15:18:27 | -70.03, 126.65 | 132.55 | 2.19 | 50 |
| 6 | 06/07/2025 | 05:54:47 | -70.17, -92.49 | 132.67 | 06/07/2025 | 05:55:59 | -70.18, -92.52 | 132.67 | 1.61 | 72 |
| 7 | 06/07/2025 | 06:45:32 | 70.08, 74.95 | 47.24 | 06/07/2025 | 06:45:26 | 70.08, 74.97 | 47.23 | 0.81 | 6 |
| 8 | 06/07/2025 | 07:36:10 | -69.81,-117.31 | 133.06 | 06/07/2025 | 07:34:58 | -69.86,-117.71 | 132.99 | 16.14 | 72 |
| 9 | 06/09/2025 | 22:11:44 | -70.17, 23.28 | 132.90 | 06/09/2025 | 22:12:27 | -70.15, 23.32 | 132.93 | 2.28 | 43 |
| 10 | 06/09/2025 | 23:02:28 | 70.02,-169.20 | 46.95 | 06/09/2025 | 23:01:54 | 70.04,-169.19 | 46.97 | 2.12 | 34 |
| 11 | 06/12/2025 | 13:38:07 | 70.71, -29.14 | 47.49 | 06/12/2025 | 13:39:16 | 70.64, -27.69 | 47.38 | 53.66 | 69 |
| 12 | 06/12/2025 | 14:28:39 | -70.11, 139.13 | 133.14 | 06/12/2025 | 14:28:54 | -70.10, 139.14 | 133.15 | 1.60 | 15 |
| 13 | 06/12/2025 | 15:19:23 | 69.97, -53.35 | 46.72 | 06/12/2025 | 15:18:21 | 69.99, -53.37 | 46.74 | 1.69 | 62 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/31/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/31/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9