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: 9/20/2026
| 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 | 09/22/2026 | 05:55:24 | 70.20, 87.41 | 69.81 | 09/22/2026 | 05:56:35 | 70.19, 87.46 | 69.80 | 1.76 | 71 |
| 2 | 09/22/2026 | 06:46:06 | -70.09,-105.11 | 110.29 | 09/22/2026 | 06:46:05 | -70.08,-105.07 | 110.30 | 1.99 | 1 |
| 3 | 09/22/2026 | 07:36:47 | 69.83, 62.59 | 69.46 | 09/22/2026 | 07:35:34 | 69.87, 62.28 | 69.50 | 12.69 | 73 |
| 4 | 09/24/2026 | 22:12:17 | 70.14,-156.73 | 70.79 | 09/24/2026 | 22:13:06 | 70.12,-156.77 | 70.77 | 2.47 | 49 |
| 5 | 09/24/2026 | 23:02:59 | -70.04, 10.74 | 109.31 | 09/24/2026 | 23:02:36 | -70.02, 10.71 | 109.33 | 2.56 | 23 |
| 6 | 09/27/2026 | 14:29:11 | 70.08, -40.88 | 71.77 | 09/27/2026 | 14:29:37 | 70.10, -40.93 | 71.78 | 2.50 | 26 |
| 7 | 09/27/2026 | 15:19:53 | -69.98, 126.59 | 108.32 | 09/27/2026 | 15:19:07 | -69.99, 126.55 | 108.31 | 1.93 | 46 |
| 8 | 09/30/2026 | 05:55:27 | -70.45, -92.99 | 106.84 | 09/30/2026 | 05:56:38 | -70.34, -92.35 | 106.96 | 26.91 | 71 |
| 9 | 09/30/2026 | 06:46:06 | 70.08, 74.89 | 72.81 | 09/30/2026 | 06:46:08 | 70.06, 74.89 | 72.78 | 2.55 | 2 |
| 10 | 09/30/2026 | 07:36:48 | -69.98,-117.64 | 107.28 | 09/30/2026 | 07:35:38 | -69.96,-117.62 | 107.31 | 2.67 | 70 |
| 11 | 10/02/2026 | 22:12:16 | -70.14, 23.26 | 106.12 | 10/02/2026 | 22:13:12 | -70.13, 23.22 | 106.13 | 1.68 | 56 |
| 12 | 10/02/2026 | 23:03:00 | 70.03,-169.27 | 73.79 | 10/02/2026 | 23:02:39 | 70.01,-169.30 | 73.77 | 2.32 | 21 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/20/2026
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 09/20/2026 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9