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: 5/10/2025
| 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 | 05/11/2025 | 14:28:13 | -70.22, 139.10 | 127.91 | 05/11/2025 | 14:29:08 | -70.23, 139.16 | 127.90 | 2.88 | 55 |
| 2 | 05/11/2025 | 15:18:57 | 70.10, -53.42 | 51.96 | 05/11/2025 | 15:18:36 | 70.08, -53.42 | 51.94 | 2.63 | 21 |
| 3 | 05/11/2025 | 16:09:26 | -69.32, 115.05 | 128.85 | 05/11/2025 | 16:08:17 | -69.35, 113.23 | 128.77 | 71.74 | 69 |
| 4 | 05/14/2025 | 05:54:45 | 71.14, 86.04 | 52.40 | 05/14/2025 | 05:55:51 | 71.06, 88.66 | 52.26 | 94.75 | 66 |
| 5 | 05/14/2025 | 06:45:10 | -70.15,-105.05 | 128.64 | 05/14/2025 | 06:45:35 | -70.18,-105.03 | 128.62 | 2.71 | 25 |
| 6 | 05/14/2025 | 07:35:54 | 70.03, 62.44 | 51.24 | 05/14/2025 | 07:35:03 | 70.02, 62.39 | 51.22 | 2.82 | 51 |
| 7 | 05/16/2025 | 22:11:26 | 70.24,-156.74 | 50.84 | 05/16/2025 | 22:12:32 | 70.21,-156.73 | 50.80 | 3.51 | 66 |
| 8 | 05/16/2025 | 23:02:07 | -70.10, 10.80 | 129.32 | 05/16/2025 | 23:02:02 | -70.10, 10.74 | 129.32 | 2.11 | 5 |
| 9 | 05/16/2025 | 23:52:45 | 69.66, 178.76 | 50.23 | 05/16/2025 | 23:51:34 | 69.71, 177.85 | 50.31 | 35.56 | 71 |
| 10 | 05/19/2025 | 14:28:23 | 70.19, -40.90 | 50.21 | 05/19/2025 | 14:28:57 | 70.21, -40.84 | 50.22 | 3.10 | 34 |
| 11 | 05/19/2025 | 15:19:03 | -70.05, 126.63 | 129.95 | 05/19/2025 | 15:18:27 | -70.04, 126.55 | 129.95 | 2.95 | 36 |
| 12 | 05/22/2025 | 05:54:40 | -70.53, -92.99 | 129.98 | 05/22/2025 | 05:55:52 | -70.40, -92.32 | 130.13 | 28.54 | 72 |
| 13 | 05/22/2025 | 06:45:19 | 70.14, 74.92 | 49.62 | 05/22/2025 | 06:45:22 | 70.12, 74.93 | 49.60 | 2.18 | 3 |
| 14 | 05/22/2025 | 07:36:00 | -70.00,-117.54 | 130.54 | 05/22/2025 | 07:34:52 | -70.02,-117.59 | 130.52 | 2.27 | 68 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/10/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/10/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9