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: 3/7/2025
| 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 | 03/08/2025 | 14:28:39 | -70.18, 139.12 | 105.17 | 03/08/2025 | 14:29:37 | -70.19, 139.13 | 105.17 | 1.68 | 58 |
| 2 | 03/08/2025 | 15:19:23 | 70.05, -53.38 | 74.68 | 03/08/2025 | 15:19:05 | 70.03, -53.46 | 74.67 | 3.32 | 18 |
| 3 | 03/08/2025 | 16:09:53 | -69.34, 114.98 | 106.08 | 03/08/2025 | 16:08:44 | -69.43, 113.35 | 105.92 | 64.90 | 69 |
| 4 | 03/11/2025 | 06:45:34 | -70.17,-105.11 | 106.23 | 03/11/2025 | 06:46:06 | -70.16,-105.04 | 106.26 | 2.87 | 32 |
| 5 | 03/11/2025 | 07:36:18 | 70.05, 62.39 | 73.63 | 03/11/2025 | 07:35:33 | 70.05, 62.45 | 73.63 | 2.46 | 45 |
| 6 | 03/13/2025 | 22:11:50 | 70.48,-157.14 | 73.05 | 03/13/2025 | 22:13:01 | 70.37,-156.49 | 72.90 | 27.19 | 71 |
| 7 | 03/13/2025 | 23:02:27 | -70.12, 10.73 | 107.34 | 03/13/2025 | 23:02:34 | -70.09, 10.75 | 107.38 | 3.44 | 7 |
| 8 | 03/13/2025 | 23:53:11 | 70.01, 178.21 | 72.53 | 03/13/2025 | 23:52:01 | 69.98, 178.24 | 72.51 | 3.18 | 70 |
| 9 | 03/16/2025 | 14:28:39 | 70.19, -40.91 | 71.68 | 03/16/2025 | 14:29:32 | 70.16, -40.91 | 71.64 | 3.18 | 53 |
| 10 | 03/16/2025 | 15:19:20 | -70.04, 126.64 | 108.50 | 03/16/2025 | 15:19:02 | -70.05, 126.57 | 108.48 | 3.16 | 18 |
| 11 | 03/16/2025 | 16:09:49 | 69.13, -64.74 | 70.55 | 03/16/2025 | 16:08:42 | 69.22, -66.91 | 70.73 | 86.53 | 67 |
| 12 | 03/19/2025 | 06:45:32 | 70.12, 74.97 | 70.54 | 03/19/2025 | 06:45:59 | 70.14, 74.95 | 70.56 | 2.80 | 27 |
| 13 | 03/19/2025 | 07:36:14 | -70.01,-117.55 | 109.59 | 03/19/2025 | 07:35:29 | -70.04,-117.56 | 109.56 | 3.04 | 45 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/7/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/07/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9