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: 1/19/2025
| 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 | 01/19/2025 | 14:28:45 | -70.21, 139.12 | 89.59 | 01/19/2025 | 14:29:45 | -70.19, 139.15 | 89.62 | 3.10 | 60 |
| 2 | 01/19/2025 | 15:19:29 | 70.09, -53.38 | 90.28 | 01/19/2025 | 15:19:12 | 70.08, -53.35 | 90.28 | 1.36 | 17 |
| 3 | 01/19/2025 | 16:10:00 | -69.44, 114.90 | 90.41 | 01/19/2025 | 16:08:50 | -69.53, 113.52 | 90.26 | 55.09 | 70 |
| 4 | 01/22/2025 | 06:45:32 | -70.17,-105.01 | 90.22 | 01/22/2025 | 06:46:14 | -70.18,-104.99 | 90.22 | 1.48 | 42 |
| 5 | 01/22/2025 | 07:36:16 | 70.04, 62.48 | 89.65 | 01/22/2025 | 07:35:41 | 70.07, 62.51 | 89.67 | 3.03 | 35 |
| 6 | 01/24/2025 | 22:11:53 | 71.05,-157.96 | 90.09 | 01/24/2025 | 22:13:00 | 70.94,-155.59 | 89.89 | 86.37 | 67 |
| 7 | 01/24/2025 | 23:02:19 | -70.14, 10.83 | 90.89 | 01/24/2025 | 23:02:43 | -70.12, 10.82 | 90.91 | 1.60 | 24 |
| 8 | 01/24/2025 | 23:53:03 | 70.01, 178.33 | 88.98 | 01/24/2025 | 23:52:10 | 70.01, 178.31 | 88.98 | 0.78 | 53 |
| 9 | 01/27/2025 | 14:28:27 | 70.35, -41.02 | 88.67 | 01/27/2025 | 14:29:39 | 70.29, -40.68 | 88.59 | 13.90 | 72 |
| 10 | 01/27/2025 | 15:19:06 | -70.12, 126.66 | 91.58 | 01/27/2025 | 15:19:10 | -70.13, 126.72 | 91.57 | 2.67 | 4 |
| 11 | 01/27/2025 | 16:09:50 | 69.99, -65.84 | 88.28 | 01/27/2025 | 16:08:37 | 70.02, -65.80 | 88.31 | 3.15 | 73 |
| 12 | 01/30/2025 | 06:45:10 | 70.18, 75.04 | 87.79 | 01/30/2025 | 06:46:06 | 70.20, 75.07 | 87.79 | 1.95 | 56 |
| 13 | 01/30/2025 | 07:35:51 | -70.06,-117.45 | 92.36 | 01/30/2025 | 07:35:37 | -70.04,-117.52 | 92.38 | 3.47 | 14 |
| 14 | 01/30/2025 | 08:26:23 | 69.30, 50.97 | 86.84 | 01/30/2025 | 08:25:14 | 69.37, 49.21 | 86.99 | 69.72 | 69 |
| 15 | 02/01/2025 | 23:01:56 | 70.14,-169.09 | 86.99 | 02/01/2025 | 23:02:32 | 70.17,-169.08 | 87.01 | 3.31 | 36 |
| 16 | 02/01/2025 | 23:52:38 | -70.07, -1.66 | 93.11 | 02/01/2025 | 23:52:02 | -70.07, -1.59 | 93.10 | 2.65 | 36 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/19/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/19/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9