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: 1/28/2025
| 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 | 01/30/2025 | 06:45:10 | 70.17, 75.06 | 87.78 | 01/30/2025 | 06:46:06 | 70.15, 75.01 | 87.75 | 2.89 | 56 |
| 2 | 01/30/2025 | 07:35:51 | -70.06,-117.45 | 92.36 | 01/30/2025 | 07:35:36 | -70.04,-117.52 | 92.38 | 3.46 | 15 |
| 3 | 01/30/2025 | 08:26:22 | 69.24, 51.06 | 86.77 | 01/30/2025 | 08:25:14 | 69.32, 49.15 | 86.95 | 75.97 | 68 |
| 4 | 02/01/2025 | 23:01:55 | 70.14,-169.09 | 86.99 | 02/01/2025 | 23:02:30 | 70.15,-169.10 | 86.99 | 1.41 | 35 |
| 5 | 02/01/2025 | 23:52:36 | -70.02, -1.59 | 93.15 | 02/01/2025 | 23:52:00 | -70.04, -1.63 | 93.13 | 2.30 | 36 |
| 6 | 02/04/2025 | 14:28:09 | -70.87, 138.24 | 93.02 | 02/04/2025 | 14:29:17 | -70.81, 140.13 | 93.17 | 69.26 | 68 |
| 7 | 02/04/2025 | 15:18:41 | 70.11, -53.25 | 86.17 | 02/04/2025 | 15:18:55 | 70.09, -53.28 | 86.15 | 2.49 | 14 |
| 8 | 02/04/2025 | 16:09:22 | -70.00, 114.25 | 93.97 | 02/04/2025 | 16:08:25 | -69.99, 114.20 | 93.97 | 2.39 | 57 |
| 9 | 02/07/2025 | 06:44:42 | -70.18,-104.85 | 94.58 | 02/07/2025 | 06:45:52 | -70.16,-104.92 | 94.60 | 3.29 | 70 |
| 10 | 02/07/2025 | 07:35:27 | 70.10, 62.57 | 85.34 | 02/07/2025 | 07:35:18 | 70.10, 62.64 | 85.33 | 2.38 | 9 |
| 11 | 02/07/2025 | 08:26:04 | -69.77,-129.61 | 95.02 | 02/07/2025 | 08:24:51 | -69.83,-130.11 | 94.94 | 20.25 | 73 |
| 12 | 02/09/2025 | 23:01:28 | -70.18, 10.95 | 95.43 | 02/09/2025 | 23:02:14 | -70.18, 11.01 | 95.44 | 2.05 | 46 |
| 13 | 02/09/2025 | 23:52:12 | 70.06, 178.45 | 84.43 | 02/09/2025 | 23:51:41 | 70.06, 178.49 | 84.44 | 1.45 | 31 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/28/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/28/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9