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: 11/8/2025
| 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 | 11/10/2025 | 07:10:10 | -70.12,-111.24 | 92.76 | 11/10/2025 | 07:11:02 | -70.13,-111.21 | 92.75 | 2.02 | 52 |
| 2 | 11/10/2025 | 08:00:54 | 69.98, 56.28 | 87.11 | 11/10/2025 | 08:00:30 | 69.97, 56.20 | 87.11 | 2.82 | 24 |
| 3 | 11/10/2025 | 08:51:20 | -69.06,-135.07 | 93.80 | 11/10/2025 | 08:50:13 | -69.15,-137.28 | 93.72 | 88.24 | 67 |
| 4 | 11/12/2025 | 22:36:42 | 70.85,-163.99 | 88.71 | 11/12/2025 | 22:37:50 | 70.76,-162.04 | 88.61 | 72.26 | 68 |
| 5 | 11/12/2025 | 23:27:10 | -70.04, 4.63 | 92.11 | 11/12/2025 | 23:27:31 | -70.05, 4.55 | 92.10 | 3.21 | 21 |
| 6 | 11/13/2025 | 00:17:55 | 69.96, 172.06 | 87.82 | 11/13/2025 | 00:16:58 | 69.94, 172.04 | 87.80 | 2.11 | 57 |
| 7 | 11/15/2025 | 14:53:30 | 70.16, -47.13 | 88.70 | 11/15/2025 | 14:54:28 | 70.14, -47.06 | 88.68 | 3.25 | 58 |
| 8 | 11/15/2025 | 15:44:11 | -70.02, 120.40 | 91.44 | 11/15/2025 | 15:43:58 | -70.04, 120.43 | 91.42 | 2.29 | 13 |
| 9 | 11/15/2025 | 16:34:44 | 69.31, -71.24 | 87.87 | 11/15/2025 | 16:33:35 | 69.37, -72.84 | 87.93 | 63.03 | 69 |
| 10 | 11/18/2025 | 07:10:29 | 70.11, 68.70 | 89.30 | 11/18/2025 | 07:10:54 | 70.10, 68.77 | 89.29 | 2.75 | 25 |
| 11 | 11/18/2025 | 08:01:10 | -69.96,-123.75 | 90.85 | 11/18/2025 | 08:00:25 | -69.94,-123.82 | 90.87 | 3.20 | 45 |
| 12 | 11/20/2025 | 22:36:44 | -70.12, 17.12 | 90.09 | 11/20/2025 | 22:37:54 | -70.14, 17.08 | 90.07 | 2.58 | 70 |
| 13 | 11/20/2025 | 23:27:28 | 70.01,-175.40 | 89.82 | 11/20/2025 | 23:27:21 | 70.02,-175.44 | 89.83 | 2.02 | 7 |
| 14 | 11/21/2025 | 00:18:06 | -69.70, -7.61 | 90.50 | 11/21/2025 | 00:16:54 | -69.75, -8.18 | 90.44 | 22.81 | 72 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/8/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/08/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8