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: 6/20/2026
| 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 | 06/20/2026 | 22:11:56 | 70.27,-156.60 | 46.79 | 06/20/2026 | 22:12:26 | 70.26,-156.55 | 46.77 | 2.13 | 30 |
| 2 | 06/20/2026 | 23:02:37 | -70.17, 10.88 | 133.33 | 06/20/2026 | 23:01:56 | -70.15, 10.92 | 133.34 | 2.14 | 41 |
| 3 | 06/23/2026 | 13:38:12 | -70.86, 150.92 | 132.57 | 06/23/2026 | 13:39:21 | -70.80, 152.48 | 132.70 | 57.34 | 69 |
| 4 | 06/23/2026 | 14:28:46 | 70.19, -40.70 | 46.73 | 06/23/2026 | 14:28:57 | 70.20, -40.76 | 46.73 | 2.48 | 11 |
| 5 | 06/23/2026 | 15:19:27 | -70.09, 126.78 | 133.39 | 06/23/2026 | 15:18:27 | -70.10, 126.72 | 133.37 | 2.69 | 60 |
| 6 | 06/26/2026 | 05:54:54 | -70.31, -92.42 | 133.08 | 06/26/2026 | 05:56:01 | -70.29, -92.40 | 133.11 | 2.66 | 67 |
| 7 | 06/26/2026 | 06:45:38 | 70.17, 75.11 | 46.78 | 06/26/2026 | 06:45:28 | 70.18, 75.09 | 46.79 | 1.54 | 10 |
| 8 | 06/26/2026 | 07:36:14 | -69.80,-117.01 | 133.62 | 06/26/2026 | 07:35:02 | -69.86,-117.73 | 133.52 | 28.75 | 72 |
| 9 | 06/28/2026 | 22:11:45 | -70.24, 23.47 | 133.04 | 06/28/2026 | 22:12:32 | -70.26, 23.44 | 133.02 | 2.73 | 47 |
| 10 | 06/28/2026 | 23:02:30 | 70.15,-169.09 | 46.88 | 06/28/2026 | 23:01:59 | 70.15,-169.08 | 46.88 | 0.47 | 31 |
| 11 | 07/01/2026 | 13:38:13 | 71.23, -29.69 | 48.18 | 07/01/2026 | 13:39:18 | 71.14, -26.98 | 47.99 | 97.91 | 65 |
| 12 | 07/01/2026 | 14:28:37 | -70.22, 139.27 | 132.89 | 07/01/2026 | 14:29:03 | -70.22, 139.26 | 132.89 | 0.47 | 26 |
| 13 | 07/01/2026 | 15:19:21 | 70.09, -53.21 | 46.97 | 07/01/2026 | 15:18:30 | 70.11, -53.26 | 47.00 | 2.99 | 51 |
| 14 | 07/04/2026 | 05:54:49 | 70.44, 87.40 | 47.55 | 07/04/2026 | 05:56:01 | 70.37, 87.73 | 47.47 | 14.27 | 72 |
| 15 | 07/04/2026 | 06:45:28 | -70.21,-104.93 | 132.68 | 07/04/2026 | 06:45:32 | -70.22,-104.86 | 132.68 | 3.03 | 4 |
| 16 | 07/04/2026 | 07:36:12 | 70.08, 62.58 | 47.18 | 07/04/2026 | 07:35:00 | 70.05, 62.54 | 47.16 | 3.33 | 72 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/20/2026
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/20/2026 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9