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: 3/13/2025
| 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 | 03/13/2025 | 22:11:50 | 70.45,-157.09 | 73.02 | 03/13/2025 | 22:13:01 | 70.35,-156.52 | 72.88 | 24.26 | 71 |
| 2 | 03/13/2025 | 23:02:27 | -70.10, 10.77 | 107.37 | 03/13/2025 | 23:02:33 | -70.12, 10.79 | 107.35 | 2.18 | 6 |
| 3 | 03/13/2025 | 23:53:11 | 69.98, 178.26 | 72.50 | 03/13/2025 | 23:52:01 | 69.96, 178.21 | 72.49 | 2.86 | 70 |
| 4 | 03/16/2025 | 14:28:39 | 70.16, -40.87 | 71.65 | 03/16/2025 | 14:29:30 | 70.19, -40.87 | 71.67 | 2.85 | 51 |
| 5 | 03/16/2025 | 15:19:21 | -70.07, 126.59 | 108.47 | 03/16/2025 | 15:19:00 | -70.07, 126.61 | 108.46 | 0.86 | 21 |
| 6 | 03/16/2025 | 16:09:49 | 69.10, -64.70 | 70.52 | 03/16/2025 | 16:08:42 | 69.14, -67.02 | 70.64 | 91.87 | 67 |
| 7 | 03/19/2025 | 06:45:32 | 70.15, 74.92 | 70.57 | 03/19/2025 | 06:45:55 | 70.14, 74.96 | 70.55 | 1.60 | 23 |
| 8 | 03/19/2025 | 07:36:14 | -70.05,-117.61 | 109.55 | 03/19/2025 | 07:35:25 | -70.03,-117.57 | 109.57 | 2.81 | 49 |
| 9 | 03/21/2025 | 22:11:41 | -70.19, 23.32 | 110.44 | 03/21/2025 | 22:12:53 | -70.20, 23.30 | 110.44 | 1.83 | 72 |
| 10 | 03/21/2025 | 23:02:25 | 70.09,-169.22 | 69.45 | 03/21/2025 | 23:02:20 | 70.09,-169.22 | 69.44 | 0.16 | 5 |
| 11 | 03/21/2025 | 23:53:04 | -69.83, -1.50 | 110.85 | 03/21/2025 | 23:51:52 | -69.87, -1.89 | 110.78 | 15.60 | 72 |
| 12 | 03/24/2025 | 14:28:34 | -70.14, 139.18 | 111.56 | 03/24/2025 | 14:29:17 | -70.16, 139.14 | 111.54 | 2.89 | 43 |
| 13 | 03/24/2025 | 15:19:18 | 70.04, -53.38 | 68.34 | 03/24/2025 | 15:18:44 | 70.04, -53.38 | 68.34 | 0.46 | 34 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/13/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/13/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9