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: 3/14/2025
| 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 | 03/15/2025 | 06:20:12 | 70.19, 81.20 | 72.21 | 03/15/2025 | 06:21:04 | 70.18, 81.16 | 72.19 | 1.88 | 52 |
| 2 | 03/15/2025 | 07:10:54 | -70.10,-111.35 | 107.90 | 03/15/2025 | 07:10:33 | -70.12,-111.28 | 107.88 | 3.02 | 21 |
| 3 | 03/15/2025 | 08:01:22 | 69.13, 57.37 | 71.08 | 03/15/2025 | 08:00:15 | 69.18, 55.09 | 71.22 | 90.65 | 67 |
| 4 | 03/17/2025 | 22:37:06 | 70.18,-163.01 | 71.13 | 03/17/2025 | 22:37:30 | 70.15,-162.98 | 71.10 | 2.86 | 24 |
| 5 | 03/17/2025 | 23:27:47 | -70.03, 4.53 | 109.04 | 03/17/2025 | 23:27:00 | -70.04, 4.49 | 109.02 | 1.92 | 47 |
| 6 | 03/20/2025 | 14:03:16 | -70.28, 145.29 | 109.81 | 03/20/2025 | 14:04:28 | -70.24, 145.39 | 109.87 | 5.91 | 72 |
| 7 | 03/20/2025 | 14:53:58 | 70.12, -47.16 | 70.01 | 03/20/2025 | 14:53:54 | 70.13, -47.12 | 70.01 | 1.25 | 4 |
| 8 | 03/20/2025 | 15:44:38 | -69.92, 120.47 | 110.22 | 03/20/2025 | 15:43:25 | -69.96, 120.28 | 110.16 | 8.84 | 73 |
| 9 | 03/23/2025 | 06:20:07 | -70.18, -98.78 | 110.98 | 03/23/2025 | 06:20:52 | -70.16, -98.82 | 111.01 | 2.95 | 45 |
| 10 | 03/23/2025 | 07:10:51 | 70.09, 68.67 | 68.91 | 03/23/2025 | 07:10:18 | 70.10, 68.74 | 68.93 | 2.75 | 33 |
| 11 | 03/25/2025 | 21:46:28 | 70.80,-151.30 | 68.63 | 03/25/2025 | 21:47:37 | 70.68,-149.79 | 68.45 | 57.07 | 69 |
| 12 | 03/25/2025 | 22:37:00 | -70.16, 17.03 | 112.07 | 03/25/2025 | 22:37:15 | -70.14, 17.05 | 112.09 | 2.15 | 15 |
| 13 | 03/25/2025 | 23:27:43 | 70.02,-175.44 | 67.78 | 03/25/2025 | 23:26:42 | 70.02,-175.48 | 67.79 | 1.41 | 61 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 3/14/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 03/14/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8