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: 1/20/2025
| 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 | 01/22/2025 | 06:45:32 | -70.18,-105.03 | 90.21 | 01/22/2025 | 06:46:14 | -70.16,-105.01 | 90.24 | 1.88 | 42 |
| 2 | 01/22/2025 | 07:36:16 | 70.05, 62.47 | 89.65 | 01/22/2025 | 07:35:41 | 70.06, 62.49 | 89.66 | 0.74 | 35 |
| 3 | 01/24/2025 | 22:11:53 | 71.06,-157.98 | 90.10 | 01/24/2025 | 22:12:59 | 70.97,-155.55 | 89.91 | 88.30 | 66 |
| 4 | 01/24/2025 | 23:02:19 | -70.15, 10.81 | 90.87 | 01/24/2025 | 23:02:42 | -70.15, 10.86 | 90.88 | 1.62 | 23 |
| 5 | 01/24/2025 | 23:53:03 | 70.03, 178.31 | 88.99 | 01/24/2025 | 23:52:09 | 70.04, 178.35 | 89.01 | 1.94 | 54 |
| 6 | 01/27/2025 | 14:28:27 | 70.36, -41.04 | 88.69 | 01/27/2025 | 14:29:38 | 70.30, -40.67 | 88.60 | 15.74 | 71 |
| 7 | 01/27/2025 | 15:19:05 | -70.08, 126.71 | 91.62 | 01/27/2025 | 15:19:10 | -70.08, 126.65 | 91.62 | 2.45 | 5 |
| 8 | 01/27/2025 | 16:09:49 | 69.96, -65.79 | 88.25 | 01/27/2025 | 16:08:37 | 69.97, -65.86 | 88.27 | 2.98 | 72 |
| 9 | 01/30/2025 | 06:45:09 | 70.16, 75.09 | 87.76 | 01/30/2025 | 06:46:05 | 70.18, 75.05 | 87.77 | 2.86 | 56 |
| 10 | 01/30/2025 | 07:35:51 | -70.08,-117.49 | 92.33 | 01/30/2025 | 07:35:35 | -70.07,-117.47 | 92.34 | 1.41 | 16 |
| 11 | 01/30/2025 | 08:26:22 | 69.27, 51.02 | 86.81 | 01/30/2025 | 08:25:14 | 69.29, 49.11 | 86.92 | 74.92 | 68 |
| 12 | 02/01/2025 | 23:01:56 | 70.17,-169.14 | 87.02 | 02/01/2025 | 23:02:30 | 70.17,-169.07 | 87.01 | 2.71 | 34 |
| 13 | 02/01/2025 | 23:52:37 | -70.05, -1.63 | 93.13 | 02/01/2025 | 23:52:00 | -70.07, -1.58 | 93.10 | 2.94 | 37 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/20/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/20/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9