Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 2/20/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 02/21/2025 | 22:37:04 | -70.19, 17.01 | 99.57 | 02/21/2025 | 22:37:43 | -70.19, 17.07 | 99.58 | 2.25 | 39 |
| 2 | 02/21/2025 | 23:27:48 | 70.04,-175.45 | 80.27 | 02/21/2025 | 23:27:11 | 70.03,-175.51 | 80.26 | 2.60 | 37 |
| 3 | 02/24/2025 | 14:03:24 | 70.60, -35.18 | 79.89 | 02/24/2025 | 14:04:35 | 70.48, -34.26 | 79.72 | 36.84 | 71 |
| 4 | 02/24/2025 | 14:53:59 | -70.16, 132.82 | 100.58 | 02/24/2025 | 14:54:09 | -70.15, 132.90 | 100.61 | 3.44 | 10 |
| 5 | 02/24/2025 | 15:44:43 | 70.02, -59.66 | 79.26 | 02/24/2025 | 15:43:36 | 70.04, -59.62 | 79.28 | 2.30 | 67 |
| 6 | 02/27/2025 | 06:20:13 | 70.22, 81.17 | 78.49 | 02/27/2025 | 06:21:05 | 70.22, 81.25 | 78.47 | 3.01 | 52 |
| 7 | 02/27/2025 | 07:10:54 | -70.10,-111.32 | 101.66 | 02/27/2025 | 07:10:35 | -70.11,-111.27 | 101.65 | 2.44 | 19 |
| 8 | 02/27/2025 | 08:01:23 | 69.16, 57.35 | 77.35 | 02/27/2025 | 08:00:16 | 69.22, 55.17 | 77.51 | 86.60 | 67 |
| 9 | 03/01/2025 | 22:37:07 | 70.12,-162.91 | 77.36 | 03/01/2025 | 22:37:31 | 70.13,-162.97 | 77.37 | 2.84 | 24 |
| 10 | 03/01/2025 | 23:27:49 | -70.04, 4.53 | 102.74 | 03/01/2025 | 23:27:01 | -70.03, 4.51 | 102.75 | 1.85 | 48 |
| 11 | 03/04/2025 | 14:03:18 | -70.21, 145.41 | 103.57 | 03/04/2025 | 14:04:28 | -70.23, 145.42 | 103.56 | 2.50 | 70 |
| 12 | 03/04/2025 | 14:54:02 | 70.09, -47.09 | 76.29 | 03/04/2025 | 14:53:55 | 70.11, -47.10 | 76.32 | 2.88 | 7 |
| 13 | 03/04/2025 | 15:44:40 | -69.79, 120.67 | 104.03 | 03/04/2025 | 15:43:28 | -69.84, 120.16 | 103.95 | 20.60 | 72 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 2/20/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 02/20/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8