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: 3/21/2025
| 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 | 03/21/2025 | 22:11:41 | -70.22, 23.28 | 110.41 | 03/21/2025 | 22:12:52 | -70.23, 23.34 | 110.41 | 2.79 | 71 |
| 2 | 03/21/2025 | 23:02:24 | 70.06,-169.17 | 69.41 | 03/21/2025 | 23:02:20 | 70.07,-169.24 | 69.43 | 3.27 | 4 |
| 3 | 03/21/2025 | 23:53:04 | -69.85, -1.54 | 110.82 | 03/21/2025 | 23:51:51 | -69.90, -1.85 | 110.76 | 12.65 | 73 |
| 4 | 03/24/2025 | 14:28:32 | -70.15, 139.17 | 111.55 | 03/24/2025 | 14:29:15 | -70.14, 139.12 | 111.56 | 1.89 | 43 |
| 5 | 03/24/2025 | 15:19:16 | 70.05, -53.37 | 68.34 | 03/24/2025 | 15:18:42 | 70.03, -53.39 | 68.33 | 1.60 | 34 |
| 6 | 03/27/2025 | 05:54:51 | 70.68, 86.78 | 67.97 | 03/27/2025 | 05:56:01 | 70.54, 87.97 | 67.78 | 46.51 | 70 |
| 7 | 03/27/2025 | 06:45:24 | -70.09,-104.98 | 112.66 | 03/27/2025 | 06:45:37 | -70.09,-105.04 | 112.66 | 2.39 | 13 |
| 8 | 03/27/2025 | 07:36:08 | 70.00, 62.47 | 67.24 | 03/27/2025 | 07:35:04 | 69.98, 62.45 | 67.22 | 2.45 | 64 |
| 9 | 03/29/2025 | 22:11:34 | 70.18,-156.65 | 66.40 | 03/29/2025 | 22:12:27 | 70.20,-156.61 | 66.41 | 2.94 | 53 |
| 10 | 03/29/2025 | 23:02:16 | -70.06, 10.85 | 113.74 | 03/29/2025 | 23:01:57 | -70.09, 10.86 | 113.72 | 2.91 | 19 |
| 11 | 03/29/2025 | 23:52:45 | 69.18, 179.45 | 65.33 | 03/29/2025 | 23:51:38 | 69.20, 177.30 | 65.43 | 84.85 | 67 |
| 12 | 04/01/2025 | 13:37:59 | -71.14, 150.26 | 113.62 | 04/01/2025 | 13:39:05 | -71.06, 152.96 | 113.79 | 97.52 | 66 |
| 13 | 04/01/2025 | 14:28:25 | 70.12, -40.77 | 65.30 | 04/01/2025 | 14:28:47 | 70.13, -40.79 | 65.30 | 1.00 | 22 |
| 14 | 04/01/2025 | 15:19:07 | -70.00, 126.73 | 114.85 | 04/01/2025 | 15:18:17 | -70.02, 126.68 | 114.83 | 2.51 | 50 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/21/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/21/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9