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: 10/28/2025
| 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 | 10/30/2025 | 14:53:20 | 70.27, -47.27 | 84.16 | 10/30/2025 | 14:54:31 | 70.23, -46.96 | 84.11 | 12.93 | 71 |
| 2 | 10/30/2025 | 15:43:59 | -70.05, 120.39 | 96.05 | 10/30/2025 | 15:44:02 | -70.06, 120.44 | 96.05 | 2.17 | 3 |
| 3 | 10/30/2025 | 16:34:43 | 69.92, -72.10 | 83.82 | 10/30/2025 | 16:33:30 | 69.90, -72.14 | 83.81 | 2.30 | 73 |
| 4 | 11/02/2025 | 07:10:07 | 70.10, 68.79 | 84.85 | 11/02/2025 | 07:11:03 | 70.10, 68.74 | 84.84 | 1.76 | 56 |
| 5 | 11/02/2025 | 08:00:48 | -69.99,-123.71 | 95.26 | 11/02/2025 | 08:00:33 | -69.99,-123.78 | 95.26 | 2.51 | 15 |
| 6 | 11/02/2025 | 08:51:20 | 69.21, 44.72 | 83.98 | 11/02/2025 | 08:50:12 | 69.22, 42.82 | 83.98 | 74.93 | 68 |
| 7 | 11/04/2025 | 23:26:57 | 70.10,-175.42 | 85.68 | 11/04/2025 | 23:27:32 | 70.11,-175.36 | 85.68 | 2.16 | 35 |
| 8 | 11/05/2025 | 00:17:38 | -69.98, -7.91 | 94.44 | 11/05/2025 | 00:17:02 | -70.01, -7.88 | 94.42 | 3.23 | 36 |
| 9 | 11/07/2025 | 14:53:15 | -70.91, 131.77 | 92.73 | 11/07/2025 | 14:54:22 | -70.80, 133.90 | 92.83 | 78.43 | 67 |
| 10 | 11/07/2025 | 15:43:45 | 70.06, -59.56 | 86.43 | 11/07/2025 | 15:44:01 | 70.04, -59.59 | 86.41 | 2.96 | 16 |
| 11 | 11/07/2025 | 16:34:26 | -69.93, 107.96 | 93.69 | 11/07/2025 | 16:33:31 | -69.93, 107.90 | 93.69 | 2.31 | 55 |
| 12 | 11/10/2025 | 07:09:51 | -70.19,-111.27 | 92.69 | 11/10/2025 | 07:11:02 | -70.16,-111.17 | 92.72 | 5.18 | 71 |
| 13 | 11/10/2025 | 08:00:34 | 70.03, 56.29 | 87.16 | 11/10/2025 | 08:00:29 | 70.04, 56.31 | 87.18 | 1.84 | 5 |
| 14 | 11/10/2025 | 08:51:14 | -69.84,-136.10 | 93.02 | 11/10/2025 | 08:50:00 | -69.89,-136.28 | 92.97 | 8.79 | 74 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/28/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/28/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8