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: 1/9/2025
| 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 | 01/11/2025 | 14:29:06 | 70.13, -40.83 | 91.81 | 01/11/2025 | 14:29:39 | 70.15, -40.87 | 91.83 | 2.51 | 33 |
| 2 | 01/11/2025 | 15:19:48 | -70.05, 126.62 | 88.29 | 01/11/2025 | 15:19:09 | -70.04, 126.61 | 88.29 | 0.39 | 39 |
| 3 | 01/14/2025 | 05:55:23 | -70.89, -93.56 | 87.83 | 01/14/2025 | 05:56:31 | -70.77, -91.71 | 88.02 | 68.93 | 68 |
| 4 | 01/14/2025 | 06:45:54 | 70.10, 75.01 | 91.33 | 01/14/2025 | 06:46:08 | 70.12, 74.97 | 91.35 | 2.41 | 14 |
| 5 | 01/14/2025 | 07:36:36 | -70.02,-117.54 | 88.77 | 01/14/2025 | 07:35:38 | -70.01,-117.55 | 88.76 | 0.44 | 58 |
| 6 | 01/16/2025 | 22:11:57 | -70.19, 23.35 | 89.06 | 01/16/2025 | 22:13:08 | -70.21, 23.35 | 89.05 | 2.33 | 71 |
| 7 | 01/16/2025 | 23:02:41 | 70.08,-169.17 | 90.82 | 01/16/2025 | 23:02:35 | 70.10,-169.17 | 90.84 | 1.99 | 6 |
| 8 | 01/16/2025 | 23:53:20 | -69.84, -1.48 | 89.45 | 01/16/2025 | 23:52:07 | -69.89, -1.84 | 89.38 | 14.65 | 73 |
| 9 | 01/19/2025 | 14:28:45 | -70.19, 139.16 | 89.61 | 01/19/2025 | 14:29:36 | -70.16, 139.16 | 89.65 | 2.93 | 51 |
| 10 | 01/19/2025 | 15:19:29 | 70.07, -53.36 | 90.27 | 01/19/2025 | 15:19:03 | 70.04, -53.37 | 90.24 | 3.57 | 26 |
| 11 | 01/19/2025 | 16:09:54 | -69.09, 115.39 | 90.77 | 01/19/2025 | 16:08:47 | -69.17, 113.08 | 90.60 | 91.75 | 67 |
| 12 | 01/22/2025 | 06:45:32 | -70.14,-104.97 | 90.25 | 01/22/2025 | 06:46:03 | -70.12,-105.01 | 90.28 | 2.50 | 31 |
| 13 | 01/22/2025 | 07:36:16 | 70.03, 62.51 | 89.63 | 01/22/2025 | 07:35:30 | 70.00, 62.47 | 89.61 | 3.29 | 46 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/9/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/09/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9