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: 5/16/2025
| 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 | 05/16/2025 | 22:11:25 | 70.21,-156.70 | 50.81 | 05/16/2025 | 22:12:34 | 70.21,-156.74 | 50.81 | 1.60 | 69 |
| 2 | 05/16/2025 | 23:02:07 | -70.13, 10.75 | 129.29 | 05/16/2025 | 23:02:03 | -70.15, 10.81 | 129.26 | 3.30 | 4 |
| 3 | 05/16/2025 | 23:52:46 | 69.73, 178.65 | 50.31 | 05/16/2025 | 23:51:34 | 69.83, 178.00 | 50.42 | 27.00 | 72 |
| 4 | 05/19/2025 | 14:28:22 | 70.16, -40.86 | 50.18 | 05/19/2025 | 14:29:03 | 70.18, -40.91 | 50.19 | 2.98 | 41 |
| 5 | 05/19/2025 | 15:19:04 | -70.08, 126.59 | 129.92 | 05/19/2025 | 15:18:33 | -70.06, 126.55 | 129.94 | 2.17 | 31 |
| 6 | 05/22/2025 | 05:54:47 | -70.87, -93.54 | 129.63 | 05/22/2025 | 05:55:55 | -70.76, -91.81 | 129.77 | 64.25 | 68 |
| 7 | 05/22/2025 | 06:45:20 | 70.16, 74.89 | 49.64 | 05/22/2025 | 06:45:31 | 70.17, 74.96 | 49.64 | 2.60 | 11 |
| 8 | 05/22/2025 | 07:36:01 | -70.03,-117.59 | 130.51 | 05/22/2025 | 07:35:01 | -70.06,-117.57 | 130.48 | 3.07 | 60 |
| 9 | 05/24/2025 | 22:11:32 | -70.20, 23.29 | 130.82 | 05/24/2025 | 22:12:33 | -70.20, 23.23 | 130.83 | 2.26 | 61 |
| 10 | 05/24/2025 | 23:02:15 | 70.07,-169.21 | 49.04 | 05/24/2025 | 23:01:59 | 70.09,-169.28 | 49.06 | 3.32 | 16 |
| 11 | 05/24/2025 | 23:52:47 | -69.46, -0.99 | 131.59 | 05/24/2025 | 23:51:37 | -69.54, -2.41 | 131.48 | 55.85 | 70 |
| 12 | 05/27/2025 | 14:28:28 | -70.17, 139.10 | 131.31 | 05/27/2025 | 14:29:00 | -70.15, 139.05 | 131.33 | 2.59 | 32 |
| 13 | 05/27/2025 | 15:19:12 | 70.04, -53.40 | 48.55 | 05/27/2025 | 15:18:27 | 70.04, -53.46 | 48.56 | 2.52 | 45 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/16/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/16/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9