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: 9/3/2025
| 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 | 09/04/2025 | 14:03:41 | 70.54, -35.27 | 63.54 | 09/04/2025 | 14:04:51 | 70.44, -34.26 | 63.41 | 39.20 | 70 |
| 2 | 09/04/2025 | 14:54:15 | -70.07, 132.79 | 116.94 | 09/04/2025 | 14:54:25 | -70.05, 132.82 | 116.96 | 2.33 | 10 |
| 3 | 09/04/2025 | 15:44:59 | 69.96, -59.75 | 62.97 | 09/04/2025 | 15:43:52 | 69.95, -59.68 | 62.96 | 3.23 | 67 |
| 4 | 09/07/2025 | 06:20:26 | 70.12, 81.17 | 64.09 | 09/07/2025 | 06:21:25 | 70.13, 81.18 | 64.10 | 1.00 | 59 |
| 5 | 09/07/2025 | 07:11:08 | -70.01,-111.36 | 116.00 | 09/07/2025 | 07:10:55 | -70.01,-111.35 | 116.00 | 0.23 | 13 |
| 6 | 09/07/2025 | 08:01:41 | 69.33, 56.96 | 63.31 | 09/07/2025 | 08:00:32 | 69.36, 55.40 | 63.38 | 61.49 | 69 |
| 7 | 09/09/2025 | 22:37:19 | 70.07,-162.99 | 65.05 | 09/09/2025 | 22:37:55 | 70.05,-163.04 | 65.03 | 2.99 | 36 |
| 8 | 09/09/2025 | 23:28:01 | -69.97, 4.49 | 115.04 | 09/09/2025 | 23:27:25 | -69.95, 4.44 | 115.07 | 3.39 | 36 |
| 9 | 09/12/2025 | 14:03:39 | -70.72, 144.46 | 113.28 | 09/12/2025 | 14:04:48 | -70.61, 146.01 | 113.43 | 58.30 | 69 |
| 10 | 09/12/2025 | 14:54:12 | 70.04, -47.16 | 66.03 | 09/12/2025 | 14:54:23 | 70.06, -47.15 | 66.05 | 2.05 | 11 |
| 11 | 09/12/2025 | 15:44:54 | -69.94, 120.31 | 114.06 | 09/12/2025 | 15:43:53 | -69.95, 120.33 | 114.05 | 1.62 | 61 |
| 12 | 09/15/2025 | 06:20:21 | -70.12, -98.81 | 112.88 | 09/15/2025 | 06:21:24 | -70.14, -98.79 | 112.86 | 2.37 | 63 |
| 13 | 09/15/2025 | 07:11:04 | 70.02, 68.66 | 67.03 | 09/15/2025 | 07:10:50 | 70.03, 68.70 | 67.04 | 1.89 | 14 |
| 14 | 09/15/2025 | 08:01:38 | -69.50,-123.25 | 113.49 | 09/15/2025 | 08:00:27 | -69.54,-124.35 | 113.43 | 42.76 | 71 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/3/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 09/03/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8