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 | 14:53:29 | 70.14, -47.09 | 88.68 | 11/15/2025 | 14:54:32 | 70.13, -47.10 | 88.66 | 1.26 | 63 |
| 2 | 11/15/2025 | 15:44:10 | -70.00, 120.43 | 91.46 | 11/15/2025 | 15:44:02 | -70.02, 120.38 | 91.44 | 2.60 | 8 |
| 3 | 11/15/2025 | 16:34:46 | 69.44, -71.44 | 88.00 | 11/15/2025 | 16:33:36 | 69.52, -72.66 | 88.08 | 48.20 | 70 |
| 4 | 11/18/2025 | 07:10:29 | 70.10, 68.71 | 89.29 | 11/18/2025 | 07:11:02 | 70.10, 68.74 | 89.29 | 1.16 | 33 |
| 5 | 11/18/2025 | 08:01:11 | -70.01,-123.83 | 90.79 | 11/18/2025 | 08:00:32 | -70.00,-123.77 | 90.81 | 2.89 | 39 |
| 6 | 11/20/2025 | 22:36:50 | -70.46, 16.59 | 89.74 | 11/20/2025 | 22:38:01 | -70.34, 17.33 | 89.86 | 30.34 | 71 |
| 7 | 11/20/2025 | 23:27:28 | 70.03,-175.43 | 89.84 | 11/20/2025 | 23:27:32 | 70.01,-175.50 | 89.82 | 3.53 | 4 |
| 8 | 11/21/2025 | 00:18:10 | -69.93, -7.96 | 90.26 | 11/21/2025 | 00:17:01 | -69.96, -7.94 | 90.23 | 3.38 | 69 |
| 9 | 11/23/2025 | 14:53:43 | -70.14, 132.85 | 89.50 | 11/23/2025 | 14:54:31 | -70.14, 132.92 | 89.50 | 2.35 | 48 |
| 10 | 11/23/2025 | 15:44:27 | 70.03, -59.67 | 90.40 | 11/23/2025 | 15:43:58 | 70.02, -59.60 | 90.39 | 2.76 | 29 |
| 11 | 11/26/2025 | 06:20:11 | 70.78, 80.26 | 91.68 | 11/26/2025 | 06:21:19 | 70.68, 81.97 | 91.56 | 63.75 | 68 |
| 12 | 11/26/2025 | 07:10:42 | -70.09,-111.32 | 89.02 | 11/26/2025 | 07:10:58 | -70.08,-111.27 | 89.03 | 2.41 | 16 |
| 13 | 11/26/2025 | 08:01:25 | 69.94, 56.22 | 90.84 | 11/26/2025 | 08:00:25 | 69.96, 56.21 | 90.86 | 2.67 | 60 |
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