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: 7/25/2025
| 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 | 07/26/2025 | 14:03:36 | -70.17, 145.31 | 129.13 | 07/26/2025 | 14:04:43 | -70.14, 145.33 | 129.17 | 2.88 | 67 |
| 2 | 07/26/2025 | 14:54:19 | 70.01, -47.15 | 50.72 | 07/26/2025 | 14:54:10 | 70.04, -47.17 | 50.75 | 2.98 | 9 |
| 3 | 07/26/2025 | 15:44:56 | -69.65, 120.72 | 129.66 | 07/26/2025 | 15:43:44 | -69.71, 120.00 | 129.56 | 28.69 | 72 |
| 4 | 07/29/2025 | 06:20:31 | -70.13, -98.86 | 128.55 | 07/29/2025 | 06:21:13 | -70.10, -98.85 | 128.59 | 3.38 | 42 |
| 5 | 07/29/2025 | 07:11:14 | 69.98, 68.67 | 51.31 | 07/29/2025 | 07:10:40 | 69.99, 68.64 | 51.32 | 1.50 | 34 |
| 6 | 07/31/2025 | 21:46:55 | 70.79,-151.47 | 52.80 | 07/31/2025 | 21:48:03 | 70.69,-149.73 | 52.62 | 64.70 | 68 |
| 7 | 07/31/2025 | 22:37:26 | -70.09, 16.96 | 127.93 | 07/31/2025 | 22:37:42 | -70.09, 17.02 | 127.94 | 2.54 | 16 |
| 8 | 07/31/2025 | 23:28:09 | 69.95,-175.52 | 51.93 | 07/31/2025 | 23:27:09 | 69.98,-175.49 | 51.97 | 3.23 | 60 |
| 9 | 08/03/2025 | 14:03:38 | 70.14, -34.65 | 52.80 | 08/03/2025 | 14:04:42 | 70.11, -34.69 | 52.76 | 2.95 | 64 |
| 10 | 08/03/2025 | 14:54:19 | -70.01, 132.85 | 127.33 | 08/03/2025 | 14:54:11 | -70.01, 132.80 | 127.33 | 2.18 | 8 |
| 11 | 08/03/2025 | 15:44:55 | 69.50, -59.09 | 52.15 | 08/03/2025 | 15:43:44 | 69.57, -60.17 | 52.26 | 42.87 | 71 |
| 12 | 08/06/2025 | 06:20:32 | 70.12, 81.15 | 53.50 | 08/06/2025 | 06:21:09 | 70.12, 81.21 | 53.49 | 2.31 | 37 |
| 13 | 08/06/2025 | 07:11:14 | -69.99,-111.34 | 126.64 | 08/06/2025 | 07:10:40 | -69.97,-111.38 | 126.65 | 2.78 | 34 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 7/25/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 07/25/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8