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: 3/4/2025
| 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 | 03/05/2025 | 22:11:53 | -70.63, 22.63 | 103.64 | 03/05/2025 | 22:13:03 | -70.51, 23.71 | 103.82 | 42.15 | 70 |
| 2 | 03/05/2025 | 23:02:29 | 70.08,-169.19 | 75.76 | 03/05/2025 | 23:02:36 | 70.07,-169.27 | 75.76 | 2.97 | 7 |
| 3 | 03/05/2025 | 23:53:11 | -70.00, -1.76 | 104.33 | 03/05/2025 | 23:52:05 | -70.02, -1.72 | 104.31 | 2.39 | 66 |
| 4 | 03/08/2025 | 14:28:39 | -70.19, 139.09 | 105.15 | 03/08/2025 | 14:29:37 | -70.17, 139.10 | 105.19 | 2.71 | 58 |
| 5 | 03/08/2025 | 15:19:23 | 70.07, -53.41 | 74.71 | 03/08/2025 | 15:19:04 | 70.06, -53.41 | 74.70 | 0.71 | 19 |
| 6 | 03/08/2025 | 16:09:53 | -69.36, 114.96 | 106.06 | 03/08/2025 | 16:08:44 | -69.40, 113.32 | 105.94 | 64.33 | 69 |
| 7 | 03/11/2025 | 06:45:33 | -70.14,-105.06 | 106.27 | 03/11/2025 | 06:46:06 | -70.12,-105.09 | 106.29 | 2.07 | 33 |
| 8 | 03/11/2025 | 07:36:17 | 70.02, 62.43 | 73.60 | 03/11/2025 | 07:35:33 | 70.01, 62.40 | 73.60 | 1.51 | 44 |
| 9 | 03/13/2025 | 22:11:50 | 70.45,-157.10 | 73.02 | 03/13/2025 | 22:13:01 | 70.36,-156.50 | 72.89 | 24.53 | 71 |
| 10 | 03/13/2025 | 23:02:27 | -70.09, 10.78 | 107.38 | 03/13/2025 | 23:02:34 | -70.09, 10.75 | 107.38 | 1.25 | 7 |
| 11 | 03/13/2025 | 23:53:11 | 69.98, 178.26 | 72.50 | 03/13/2025 | 23:52:01 | 69.98, 178.23 | 72.50 | 1.15 | 70 |
| 12 | 03/16/2025 | 14:28:39 | 70.16, -40.87 | 71.65 | 03/16/2025 | 14:29:31 | 70.18, -40.88 | 71.66 | 1.65 | 52 |
| 13 | 03/16/2025 | 15:19:21 | -70.06, 126.60 | 108.47 | 03/16/2025 | 15:19:01 | -70.07, 126.61 | 108.46 | 1.54 | 20 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/4/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/04/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9