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: 11/11/2025
| 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 | 11/12/2025 | 22:36:42 | 70.86,-164.00 | 88.71 | 11/12/2025 | 22:37:50 | 70.74,-162.07 | 88.59 | 72.15 | 68 |
| 2 | 11/12/2025 | 23:27:11 | -70.10, 4.53 | 92.05 | 11/12/2025 | 23:27:30 | -70.08, 4.60 | 92.07 | 3.22 | 19 |
| 3 | 11/13/2025 | 00:17:55 | 69.96, 172.05 | 87.83 | 11/13/2025 | 00:16:57 | 69.97, 172.09 | 87.84 | 2.17 | 58 |
| 4 | 11/15/2025 | 14:53:29 | 70.12, -47.06 | 88.66 | 11/15/2025 | 14:54:28 | 70.11, -47.11 | 88.65 | 1.87 | 59 |
| 5 | 11/15/2025 | 15:44:11 | -70.03, 120.38 | 91.43 | 11/15/2025 | 15:43:57 | -70.05, 120.45 | 91.41 | 3.35 | 14 |
| 6 | 11/15/2025 | 16:34:44 | 69.32, -71.26 | 87.88 | 11/15/2025 | 16:33:35 | 69.34, -72.89 | 87.89 | 64.01 | 69 |
| 7 | 11/18/2025 | 07:10:29 | 70.07, 68.76 | 89.26 | 11/18/2025 | 07:10:54 | 70.09, 68.77 | 89.28 | 2.78 | 25 |
| 8 | 11/18/2025 | 08:01:11 | -69.98,-123.78 | 90.83 | 11/18/2025 | 08:00:24 | -69.98,-123.75 | 90.82 | 1.44 | 47 |
| 9 | 11/20/2025 | 22:36:44 | -70.15, 17.08 | 90.06 | 11/20/2025 | 22:37:52 | -70.15, 17.10 | 90.06 | 1.07 | 68 |
| 10 | 11/20/2025 | 23:27:28 | 70.03,-175.43 | 89.84 | 11/20/2025 | 23:27:19 | 70.04,-175.42 | 89.84 | 0.96 | 9 |
| 11 | 11/21/2025 | 00:18:05 | -69.67, -7.57 | 90.52 | 11/21/2025 | 00:16:53 | -69.71, -8.24 | 90.48 | 26.06 | 72 |
| 12 | 11/23/2025 | 14:53:44 | -70.11, 132.88 | 89.52 | 11/23/2025 | 14:54:17 | -70.12, 132.95 | 89.52 | 2.49 | 33 |
| 13 | 11/23/2025 | 15:44:28 | 70.01, -59.65 | 90.38 | 11/23/2025 | 15:43:44 | 70.00, -59.57 | 90.37 | 3.05 | 44 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/11/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/11/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8