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: 9/27/2025
| 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 | 09/28/2025 | 14:54:01 | 70.05, -47.13 | 72.23 | 09/28/2025 | 14:54:30 | 70.07, -47.16 | 72.24 | 2.38 | 29 |
| 2 | 09/28/2025 | 15:44:42 | -69.93, 120.37 | 107.88 | 09/28/2025 | 15:44:00 | -69.95, 120.31 | 107.86 | 3.25 | 42 |
| 3 | 10/01/2025 | 06:20:16 | -70.52, -99.39 | 106.28 | 10/01/2025 | 06:21:27 | -70.37, -98.48 | 106.43 | 37.40 | 71 |
| 4 | 10/01/2025 | 07:10:54 | 70.07, 68.63 | 73.28 | 10/01/2025 | 07:10:58 | 70.05, 68.70 | 73.26 | 3.37 | 4 |
| 5 | 10/01/2025 | 08:01:35 | -69.95,-123.88 | 106.83 | 10/01/2025 | 08:00:28 | -69.94,-123.83 | 106.84 | 2.35 | 67 |
| 6 | 10/03/2025 | 22:37:01 | -70.13, 17.01 | 105.64 | 10/03/2025 | 22:37:59 | -70.10, 17.01 | 105.67 | 3.50 | 58 |
| 7 | 10/03/2025 | 23:27:45 | 69.99,-175.47 | 74.24 | 10/03/2025 | 23:27:26 | 69.99,-175.50 | 74.24 | 1.07 | 19 |
| 8 | 10/04/2025 | 00:18:15 | -69.29, -7.13 | 106.46 | 10/04/2025 | 00:17:06 | -69.33, -8.77 | 106.41 | 64.52 | 69 |
| 9 | 10/06/2025 | 14:53:51 | -70.06, 132.90 | 104.68 | 10/06/2025 | 14:54:25 | -70.05, 132.84 | 104.69 | 2.40 | 34 |
| 10 | 10/06/2025 | 15:44:36 | 69.98, -59.67 | 75.26 | 10/06/2025 | 15:43:51 | 70.00, -59.60 | 75.27 | 3.43 | 45 |
| 11 | 10/09/2025 | 06:20:07 | 70.44, 80.77 | 76.72 | 10/09/2025 | 06:21:17 | 70.35, 81.53 | 76.62 | 30.28 | 70 |
| 12 | 10/09/2025 | 07:10:42 | -70.01,-111.24 | 103.71 | 10/09/2025 | 07:10:51 | -70.02,-111.31 | 103.70 | 3.14 | 9 |
| 13 | 10/09/2025 | 08:01:27 | 69.93, 56.20 | 76.22 | 10/09/2025 | 08:00:18 | 69.91, 56.18 | 76.20 | 2.10 | 69 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/27/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 09/27/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8