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: 5/3/2025
| 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 | 05/03/2025 | 14:28:05 | 70.25, -40.91 | 54.31 | 05/03/2025 | 14:29:13 | 70.23, -40.85 | 54.28 | 3.08 | 68 |
| 2 | 05/03/2025 | 15:18:46 | -70.09, 126.65 | 125.87 | 05/03/2025 | 15:18:43 | -70.11, 126.62 | 125.85 | 2.60 | 3 |
| 3 | 05/03/2025 | 16:09:26 | 69.77, -65.56 | 53.80 | 05/03/2025 | 16:08:14 | 69.79, -66.19 | 53.83 | 24.17 | 72 |
| 4 | 05/06/2025 | 06:45:02 | 70.16, 74.98 | 53.46 | 05/06/2025 | 06:45:42 | 70.14, 74.91 | 53.43 | 3.38 | 40 |
| 5 | 05/06/2025 | 07:35:44 | -70.06,-117.55 | 126.66 | 05/06/2025 | 07:35:11 | -70.08,-117.54 | 126.64 | 2.68 | 33 |
| 6 | 05/08/2025 | 22:11:25 | -70.72, 22.54 | 126.69 | 05/08/2025 | 22:12:35 | -70.62, 23.85 | 126.82 | 49.63 | 70 |
| 7 | 05/08/2025 | 23:02:00 | 70.14,-169.24 | 52.71 | 05/08/2025 | 23:02:09 | 70.13,-169.22 | 52.69 | 1.29 | 9 |
| 8 | 05/08/2025 | 23:52:42 | -70.04, -1.77 | 127.41 | 05/08/2025 | 23:51:39 | -70.02, -1.75 | 127.43 | 2.30 | 63 |
| 9 | 05/11/2025 | 14:28:13 | -70.19, 139.14 | 127.94 | 05/11/2025 | 14:29:09 | -70.20, 139.11 | 127.94 | 1.40 | 56 |
| 10 | 05/11/2025 | 15:18:57 | 70.08, -53.38 | 51.94 | 05/11/2025 | 15:18:36 | 70.09, -53.40 | 51.95 | 0.96 | 21 |
| 11 | 05/11/2025 | 16:09:26 | -69.29, 115.09 | 128.88 | 05/11/2025 | 16:08:18 | -69.32, 113.18 | 128.81 | 75.09 | 68 |
| 12 | 05/14/2025 | 05:54:44 | 71.13, 86.05 | 52.39 | 05/14/2025 | 05:55:50 | 71.05, 88.64 | 52.25 | 93.74 | 66 |
| 13 | 05/14/2025 | 06:45:10 | -70.19,-105.10 | 128.60 | 05/14/2025 | 06:45:34 | -70.17,-105.03 | 128.62 | 3.29 | 24 |
| 14 | 05/14/2025 | 07:35:53 | 70.03, 62.45 | 51.23 | 05/14/2025 | 07:35:01 | 70.06, 62.45 | 51.27 | 3.55 | 52 |
| 15 | 05/16/2025 | 22:11:24 | 70.20,-156.67 | 50.80 | 05/16/2025 | 22:12:30 | 70.22,-156.71 | 50.82 | 3.06 | 66 |
| 16 | 05/16/2025 | 23:02:06 | -70.10, 10.80 | 129.31 | 05/16/2025 | 23:02:00 | -70.11, 10.77 | 129.30 | 2.02 | 6 |
| 17 | 05/16/2025 | 23:52:43 | 69.61, 178.83 | 50.18 | 05/16/2025 | 23:51:32 | 69.72, 177.87 | 50.32 | 38.85 | 71 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/3/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/03/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9