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: 1/24/2025
| 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 | 01/24/2025 | 22:11:52 | 71.03,-157.93 | 90.07 | 01/24/2025 | 22:12:59 | 70.94,-155.59 | 89.89 | 85.13 | 67 |
| 2 | 01/24/2025 | 23:02:18 | -70.12, 10.85 | 90.90 | 01/24/2025 | 23:02:42 | -70.12, 10.81 | 90.91 | 1.72 | 24 |
| 3 | 01/24/2025 | 23:53:02 | 69.99, 178.36 | 88.96 | 01/24/2025 | 23:52:09 | 70.01, 178.31 | 88.99 | 2.70 | 53 |
| 4 | 01/27/2025 | 14:28:26 | 70.34, -41.00 | 88.67 | 01/27/2025 | 14:29:38 | 70.27, -40.72 | 88.57 | 13.24 | 72 |
| 5 | 01/27/2025 | 15:19:05 | -70.11, 126.67 | 91.59 | 01/27/2025 | 15:19:09 | -70.10, 126.68 | 91.60 | 1.63 | 4 |
| 6 | 01/27/2025 | 16:09:49 | 69.99, -65.83 | 88.27 | 01/27/2025 | 16:08:36 | 69.99, -65.83 | 88.29 | 0.86 | 73 |
| 7 | 01/30/2025 | 06:45:10 | 70.19, 75.04 | 87.79 | 01/30/2025 | 06:46:05 | 70.20, 75.07 | 87.79 | 1.76 | 55 |
| 8 | 01/30/2025 | 07:35:51 | -70.07,-117.46 | 92.35 | 01/30/2025 | 07:35:35 | -70.09,-117.45 | 92.33 | 2.07 | 16 |
| 9 | 01/30/2025 | 08:26:22 | 69.25, 51.05 | 86.79 | 01/30/2025 | 08:25:14 | 69.31, 49.14 | 86.94 | 75.45 | 68 |
| 10 | 02/01/2025 | 23:01:56 | 70.16,-169.11 | 87.01 | 02/01/2025 | 23:02:31 | 70.13,-169.13 | 86.97 | 3.30 | 35 |
| 11 | 02/01/2025 | 23:52:37 | -70.04, -1.61 | 93.14 | 02/01/2025 | 23:52:01 | -70.02, -1.65 | 93.15 | 2.44 | 36 |
| 12 | 02/04/2025 | 14:28:09 | -70.90, 138.20 | 92.99 | 02/04/2025 | 14:29:17 | -70.78, 140.09 | 93.20 | 70.12 | 68 |
| 13 | 02/04/2025 | 15:18:40 | 70.09, -53.21 | 86.15 | 02/04/2025 | 15:18:54 | 70.12, -53.24 | 86.17 | 3.19 | 14 |
| 14 | 02/04/2025 | 16:09:22 | -70.02, 114.21 | 93.94 | 02/04/2025 | 16:08:24 | -70.01, 114.24 | 93.95 | 1.76 | 58 |
| 15 | 02/07/2025 | 06:44:42 | -70.22,-104.90 | 94.54 | 02/07/2025 | 06:45:50 | -70.22,-104.83 | 94.55 | 2.92 | 68 |
| 16 | 02/07/2025 | 07:35:26 | 70.09, 62.60 | 85.33 | 02/07/2025 | 07:35:17 | 70.11, 62.65 | 85.34 | 2.47 | 9 |
| 17 | 02/07/2025 | 08:26:03 | -69.76,-129.59 | 95.04 | 02/07/2025 | 08:24:50 | -69.84,-130.10 | 94.93 | 21.47 | 73 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/24/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/24/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9