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: 6/18/2025
| 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 | 06/20/2025 | 14:28:46 | 70.11, -40.90 | 46.63 | 06/20/2025 | 14:29:11 | 70.12, -40.88 | 46.64 | 1.22 | 25 |
| 2 | 06/20/2025 | 15:19:27 | -70.00, 126.59 | 133.49 | 06/20/2025 | 15:18:41 | -70.01, 126.60 | 133.48 | 0.97 | 46 |
| 3 | 06/23/2025 | 05:55:01 | -70.38, -92.86 | 133.07 | 06/23/2025 | 05:56:13 | -70.31, -92.37 | 133.17 | 19.89 | 72 |
| 4 | 06/23/2025 | 06:45:42 | 70.08, 74.91 | 46.62 | 06/23/2025 | 06:45:42 | 70.09, 74.96 | 46.63 | 2.36 | 0 |
| 5 | 06/23/2025 | 07:36:23 | -69.96,-117.59 | 133.51 | 06/23/2025 | 07:35:12 | -69.99,-117.56 | 133.48 | 2.75 | 71 |
| 6 | 06/25/2025 | 22:11:52 | -70.14, 23.28 | 133.25 | 06/25/2025 | 22:12:45 | -70.16, 23.29 | 133.24 | 2.21 | 53 |
| 7 | 06/25/2025 | 23:02:37 | 70.05,-169.28 | 46.66 | 06/25/2025 | 23:02:12 | 70.05,-169.22 | 46.66 | 2.32 | 25 |
| 8 | 06/25/2025 | 23:53:03 | -69.14, -0.63 | 134.30 | 06/25/2025 | 23:51:56 | -69.18, -2.78 | 134.18 | 85.21 | 67 |
| 9 | 06/28/2025 | 14:28:48 | -70.11, 139.09 | 133.17 | 06/28/2025 | 14:29:16 | -70.10, 139.09 | 133.18 | 1.15 | 28 |
| 10 | 06/28/2025 | 15:19:32 | 69.98, -53.40 | 46.70 | 06/28/2025 | 15:18:43 | 69.99, -53.43 | 46.72 | 1.36 | 49 |
| 11 | 07/01/2025 | 05:55:04 | 70.28, 87.28 | 47.17 | 07/01/2025 | 05:56:15 | 70.23, 87.53 | 47.11 | 10.36 | 71 |
| 12 | 07/01/2025 | 06:45:44 | -70.09,-105.11 | 133.02 | 07/01/2025 | 06:45:46 | -70.08,-105.06 | 133.04 | 2.20 | 2 |
| 13 | 07/01/2025 | 07:36:27 | 69.91, 62.47 | 46.79 | 07/01/2025 | 07:35:14 | 69.91, 62.35 | 46.81 | 4.70 | 73 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/18/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/18/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9