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: 1/10/2025
| 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 | 70.14, -40.84 | 91.82 | 01/11/2025 | 14:29:41 | 70.12, -40.91 | 91.80 | 3.23 | 35 |
| 2 | 01/11/2025 | 15:19:48 | -70.06, 126.60 | 88.28 | 01/11/2025 | 15:19:10 | -70.07, 126.64 | 88.26 | 1.97 | 38 |
| 3 | 01/14/2025 | 05:55:25 | -71.01, -93.75 | 87.71 | 01/14/2025 | 05:56:32 | -70.94, -91.47 | 87.86 | 83.25 | 67 |
| 4 | 01/14/2025 | 06:45:54 | 70.11, 75.00 | 91.34 | 01/14/2025 | 06:46:12 | 70.13, 74.96 | 91.36 | 2.23 | 18 |
| 5 | 01/14/2025 | 07:36:36 | -70.03,-117.56 | 88.75 | 01/14/2025 | 07:35:42 | -70.02,-117.55 | 88.75 | 0.64 | 54 |
| 6 | 01/16/2025 | 22:12:01 | -70.41, 23.01 | 88.83 | 01/16/2025 | 22:13:13 | -70.32, 23.46 | 88.96 | 20.20 | 72 |
| 7 | 01/16/2025 | 23:02:41 | 70.09,-169.18 | 90.83 | 01/16/2025 | 23:02:42 | 70.09,-169.21 | 90.83 | 1.19 | 1 |
| 8 | 01/16/2025 | 23:53:23 | -70.01, -1.74 | 89.27 | 01/16/2025 | 23:52:12 | -69.99, -1.72 | 89.28 | 1.85 | 71 |
| 9 | 01/19/2025 | 14:28:45 | -70.20, 139.15 | 89.60 | 01/19/2025 | 14:29:45 | -70.19, 139.16 | 89.62 | 0.63 | 60 |
| 10 | 01/19/2025 | 15:19:29 | 70.08, -53.37 | 90.27 | 01/19/2025 | 15:19:12 | 70.08, -53.36 | 90.27 | 0.73 | 17 |
| 11 | 01/19/2025 | 16:10:01 | -69.47, 114.85 | 90.38 | 01/19/2025 | 16:08:51 | -69.49, 113.46 | 90.31 | 54.37 | 70 |
| 12 | 01/22/2025 | 06:45:32 | -70.14,-104.98 | 90.25 | 01/22/2025 | 06:46:15 | -70.14,-105.03 | 90.25 | 1.95 | 43 |
| 13 | 01/22/2025 | 07:36:16 | 70.03, 62.51 | 89.63 | 01/22/2025 | 07:35:42 | 70.02, 62.44 | 89.63 | 2.47 | 34 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/10/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/10/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9