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: 7/22/2025
| 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 | 07/23/2025 | 21:46:54 | -70.89, 28.39 | 128.95 | 07/23/2025 | 21:48:02 | -70.78, 30.38 | 129.14 | 73.97 | 68 |
| 2 | 07/23/2025 | 22:37:24 | 70.05,-162.97 | 50.18 | 07/23/2025 | 22:37:40 | 70.07,-163.01 | 50.20 | 2.94 | 16 |
| 3 | 07/23/2025 | 23:28:06 | -69.95, 4.50 | 129.93 | 07/23/2025 | 23:27:10 | -69.96, 4.47 | 129.90 | 2.06 | 56 |
| 4 | 07/26/2025 | 14:03:36 | -70.16, 145.32 | 129.13 | 07/26/2025 | 14:04:43 | -70.15, 145.35 | 129.15 | 1.33 | 67 |
| 5 | 07/26/2025 | 14:54:20 | 70.06, -47.22 | 50.78 | 07/26/2025 | 14:54:10 | 70.05, -47.16 | 50.76 | 3.06 | 10 |
| 6 | 07/26/2025 | 15:44:56 | -69.64, 120.73 | 129.67 | 07/26/2025 | 15:43:44 | -69.72, 120.01 | 129.55 | 29.00 | 72 |
| 7 | 07/29/2025 | 06:20:31 | -70.12, -98.85 | 128.56 | 07/29/2025 | 06:21:13 | -70.12, -98.83 | 128.57 | 1.09 | 42 |
| 8 | 07/29/2025 | 07:11:14 | 69.98, 68.68 | 51.30 | 07/29/2025 | 07:10:40 | 70.01, 68.66 | 51.33 | 3.21 | 34 |
| 9 | 07/31/2025 | 21:46:55 | 70.78,-151.45 | 52.79 | 07/31/2025 | 21:48:03 | 70.71,-149.70 | 52.64 | 64.97 | 68 |
| 10 | 07/31/2025 | 22:37:26 | -70.08, 16.97 | 127.94 | 07/31/2025 | 22:37:43 | -70.06, 16.98 | 127.97 | 2.34 | 17 |
| 11 | 07/31/2025 | 23:28:09 | 69.95,-175.51 | 51.92 | 07/31/2025 | 23:27:10 | 69.95,-175.53 | 51.94 | 1.03 | 59 |
| 12 | 08/03/2025 | 14:03:37 | 70.12, -34.64 | 52.78 | 08/03/2025 | 14:04:41 | 70.15, -34.65 | 52.79 | 2.46 | 64 |
| 13 | 08/03/2025 | 14:54:20 | -70.05, 132.79 | 127.29 | 08/03/2025 | 14:54:11 | -70.05, 132.85 | 127.30 | 2.03 | 9 |
| 14 | 08/03/2025 | 15:44:55 | 69.49, -59.07 | 52.14 | 08/03/2025 | 15:43:45 | 69.54, -60.20 | 52.24 | 44.46 | 70 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/22/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/22/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8