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: 11/13/2025
| 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 | 11/15/2025 | 14:53:28 | 70.10, -47.04 | 88.64 | 11/15/2025 | 14:54:27 | 70.11, -47.10 | 88.65 | 2.50 | 59 |
| 2 | 11/15/2025 | 15:44:10 | -70.02, 120.40 | 91.44 | 11/15/2025 | 15:43:57 | -70.00, 120.37 | 91.46 | 2.53 | 13 |
| 3 | 11/15/2025 | 16:34:43 | 69.30, -71.24 | 87.86 | 11/15/2025 | 16:33:34 | 69.34, -72.88 | 87.89 | 64.74 | 69 |
| 4 | 11/18/2025 | 07:10:28 | 70.06, 68.77 | 89.26 | 11/18/2025 | 07:10:53 | 70.08, 68.74 | 89.27 | 1.81 | 25 |
| 5 | 11/18/2025 | 08:01:10 | -69.97,-123.78 | 90.83 | 11/18/2025 | 08:00:23 | -69.97,-123.78 | 90.84 | 0.73 | 47 |
| 6 | 11/20/2025 | 22:36:44 | -70.15, 17.07 | 90.05 | 11/20/2025 | 22:37:51 | -70.16, 17.12 | 90.05 | 2.04 | 67 |
| 7 | 11/20/2025 | 23:27:28 | 70.04,-175.44 | 89.85 | 11/20/2025 | 23:27:18 | 70.05,-175.40 | 89.85 | 2.10 | 10 |
| 8 | 11/21/2025 | 00:18:04 | -69.63, -7.51 | 90.57 | 11/21/2025 | 00:16:52 | -69.72, -8.22 | 90.47 | 29.52 | 72 |
| 9 | 11/23/2025 | 14:53:43 | -70.09, 132.93 | 89.55 | 11/23/2025 | 14:54:16 | -70.09, 132.92 | 89.55 | 0.68 | 33 |
| 10 | 11/23/2025 | 15:44:27 | 69.98, -59.60 | 90.35 | 11/23/2025 | 15:43:43 | 69.98, -59.60 | 90.35 | 0.38 | 44 |
| 11 | 11/26/2025 | 06:19:59 | 70.15, 81.28 | 91.03 | 11/26/2025 | 06:21:09 | 70.14, 81.26 | 91.02 | 1.49 | 70 |
| 12 | 11/26/2025 | 07:10:41 | -70.04,-111.24 | 89.08 | 11/26/2025 | 07:10:39 | -70.03,-111.26 | 89.08 | 1.07 | 2 |
| 13 | 11/26/2025 | 08:01:21 | 69.72, 56.54 | 90.62 | 11/26/2025 | 08:00:09 | 69.75, 55.99 | 90.64 | 21.46 | 72 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/13/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/13/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8