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: 6/12/2026
| 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 | 06/12/2026 | 21:21:33 | 71.04,-145.17 | 47.82 | 06/12/2026 | 21:22:40 | 70.93,-143.18 | 47.66 | 73.11 | 67 |
| 2 | 06/12/2026 | 22:12:01 | -70.24, 23.44 | 133.01 | 06/12/2026 | 22:12:21 | -70.22, 23.39 | 133.04 | 2.94 | 20 |
| 3 | 06/12/2026 | 23:02:45 | 70.10,-169.04 | 46.84 | 06/12/2026 | 23:01:48 | 70.12,-169.11 | 46.86 | 3.48 | 57 |
| 4 | 06/15/2026 | 13:38:12 | 70.32, -28.22 | 46.94 | 06/15/2026 | 13:39:23 | 70.32, -28.22 | 46.93 | 0.25 | 71 |
| 5 | 06/15/2026 | 14:28:53 | -70.20, 139.27 | 133.18 | 06/15/2026 | 14:28:53 | -70.21, 139.26 | 133.17 | 1.40 | 0 |
| 6 | 06/15/2026 | 15:19:35 | 69.96, -53.04 | 46.56 | 06/15/2026 | 15:18:22 | 70.00, -53.41 | 46.62 | 14.68 | 73 |
| 7 | 06/18/2026 | 05:55:03 | 70.28, 87.61 | 46.83 | 06/18/2026 | 05:55:54 | 70.29, 87.61 | 46.83 | 1.14 | 51 |
| 8 | 06/18/2026 | 06:45:44 | -70.17,-104.90 | 133.29 | 06/18/2026 | 06:45:24 | -70.19,-104.90 | 133.27 | 2.59 | 20 |
| 9 | 06/18/2026 | 07:36:12 | 69.18, 63.86 | 45.68 | 06/18/2026 | 07:35:06 | 69.25, 61.45 | 45.84 | 95.43 | 66 |
| 10 | 06/20/2026 | 22:11:55 | 70.25,-156.57 | 46.77 | 06/20/2026 | 22:12:26 | 70.25,-156.57 | 46.76 | 0.21 | 31 |
| 11 | 06/20/2026 | 23:02:36 | -70.14, 10.92 | 133.35 | 06/20/2026 | 23:01:56 | -70.15, 10.92 | 133.34 | 1.77 | 40 |
| 12 | 06/23/2026 | 13:38:13 | -70.89, 150.88 | 132.55 | 06/23/2026 | 13:39:22 | -70.80, 152.48 | 132.69 | 59.28 | 69 |
| 13 | 06/23/2026 | 14:28:47 | 70.23, -40.76 | 46.76 | 06/23/2026 | 14:28:57 | 70.25, -40.70 | 46.78 | 3.25 | 10 |
| 14 | 06/23/2026 | 15:19:28 | -70.11, 126.74 | 133.36 | 06/23/2026 | 15:18:28 | -70.10, 126.72 | 133.37 | 1.53 | 60 |
| 15 | 06/26/2026 | 05:54:54 | -70.29, -92.38 | 133.11 | 06/26/2026 | 05:56:02 | -70.30, -92.40 | 133.11 | 0.98 | 68 |
| 16 | 06/26/2026 | 06:45:38 | 70.15, 75.13 | 46.76 | 06/26/2026 | 06:45:29 | 70.18, 75.07 | 46.78 | 3.34 | 9 |
| 17 | 06/26/2026 | 07:36:15 | -69.82,-117.05 | 133.59 | 06/26/2026 | 07:35:03 | -69.86,-117.73 | 133.52 | 26.61 | 72 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/12/2026
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/12/2026 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9