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 | -70.09,-111.20 | 92.79 | 11/10/2025 | 07:11:03 | -70.10,-111.26 | 92.78 | 2.57 | 53 |
| 2 | 11/10/2025 | 08:00:55 | 70.00, 56.24 | 87.14 | 11/10/2025 | 08:00:30 | 70.00, 56.24 | 87.13 | 0.36 | 25 |
| 3 | 11/10/2025 | 08:51:21 | -69.08,-135.11 | 93.77 | 11/10/2025 | 08:50:14 | -69.12,-137.32 | 93.75 | 87.93 | 67 |
| 4 | 11/12/2025 | 22:36:42 | 70.88,-164.03 | 88.73 | 11/12/2025 | 22:37:49 | 70.78,-162.01 | 88.63 | 74.86 | 67 |
| 5 | 11/12/2025 | 23:27:10 | -70.06, 4.59 | 92.09 | 11/12/2025 | 23:27:30 | -70.07, 4.58 | 92.09 | 0.57 | 20 |
| 6 | 11/13/2025 | 00:17:55 | 69.98, 172.02 | 87.85 | 11/13/2025 | 00:16:57 | 69.96, 172.07 | 87.82 | 3.33 | 58 |
| 7 | 11/15/2025 | 14:53:29 | 70.13, -47.09 | 88.67 | 11/15/2025 | 14:54:27 | 70.15, -47.04 | 88.69 | 2.89 | 58 |
| 8 | 11/15/2025 | 15:44:11 | -70.05, 120.36 | 91.41 | 11/15/2025 | 15:43:57 | -70.05, 120.44 | 91.41 | 2.90 | 14 |
| 9 | 11/15/2025 | 16:34:43 | 69.28, -71.21 | 87.84 | 11/15/2025 | 16:33:34 | 69.38, -72.83 | 87.93 | 64.53 | 69 |
| 10 | 11/18/2025 | 07:10:29 | 70.08, 68.74 | 89.28 | 11/18/2025 | 07:10:54 | 70.10, 68.77 | 89.29 | 1.93 | 25 |
| 11 | 11/18/2025 | 08:01:11 | -69.99,-123.80 | 90.82 | 11/18/2025 | 08:00:24 | -69.99,-123.75 | 90.81 | 2.06 | 47 |
| 12 | 11/20/2025 | 22:36:45 | -70.15, 17.07 | 90.05 | 11/20/2025 | 22:37:53 | -70.18, 17.13 | 90.03 | 3.29 | 68 |
| 13 | 11/20/2025 | 23:27:29 | 70.04,-175.45 | 89.85 | 11/20/2025 | 23:27:20 | 70.06,-175.39 | 89.86 | 2.87 | 9 |
| 14 | 11/21/2025 | 00:18:06 | -69.68, -7.58 | 90.52 | 11/21/2025 | 00:16:54 | -69.74, -8.21 | 90.46 | 24.84 | 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