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: 10/27/2025
| 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 | 10/27/2025 | 22:36:43 | 70.93,-164.13 | 83.94 | 10/27/2025 | 22:37:50 | 70.86,-161.88 | 83.87 | 82.02 | 67 |
| 2 | 10/27/2025 | 23:27:09 | -70.09, 4.55 | 96.91 | 10/27/2025 | 23:27:31 | -70.09, 4.61 | 96.90 | 2.63 | 22 |
| 3 | 10/28/2025 | 00:17:53 | 69.94, 172.07 | 82.97 | 10/28/2025 | 00:16:59 | 69.94, 172.04 | 82.96 | 1.46 | 54 |
| 4 | 10/30/2025 | 14:53:20 | 70.28, -47.28 | 84.17 | 10/30/2025 | 14:54:31 | 70.22, -46.97 | 84.11 | 13.47 | 71 |
| 5 | 10/30/2025 | 15:43:59 | -70.06, 120.38 | 96.05 | 10/30/2025 | 15:44:02 | -70.05, 120.43 | 96.05 | 2.07 | 3 |
| 6 | 10/30/2025 | 16:34:43 | 69.92, -72.10 | 83.83 | 10/30/2025 | 16:33:30 | 69.89, -72.15 | 83.80 | 3.38 | 73 |
| 7 | 11/02/2025 | 07:10:07 | 70.11, 68.78 | 84.85 | 11/02/2025 | 07:11:03 | 70.09, 68.73 | 84.84 | 2.51 | 56 |
| 8 | 11/02/2025 | 08:00:48 | -69.99,-123.72 | 95.26 | 11/02/2025 | 08:00:33 | -69.99,-123.79 | 95.26 | 2.49 | 15 |
| 9 | 11/02/2025 | 08:51:19 | 69.16, 44.79 | 83.94 | 11/02/2025 | 08:50:11 | 69.27, 42.88 | 84.03 | 76.02 | 68 |
| 10 | 11/04/2025 | 23:26:57 | 70.11,-175.42 | 85.68 | 11/04/2025 | 23:27:32 | 70.10,-175.37 | 85.68 | 1.91 | 35 |
| 11 | 11/05/2025 | 00:17:38 | -69.98, -7.91 | 94.44 | 11/05/2025 | 00:17:02 | -70.00, -7.89 | 94.42 | 2.23 | 36 |
| 12 | 11/07/2025 | 14:53:16 | -70.91, 131.77 | 92.73 | 11/07/2025 | 14:54:23 | -70.80, 133.89 | 92.84 | 78.28 | 67 |
| 13 | 11/07/2025 | 15:43:45 | 70.06, -59.56 | 86.43 | 11/07/2025 | 15:44:00 | 70.08, -59.52 | 86.45 | 2.80 | 15 |
| 14 | 11/07/2025 | 16:34:26 | -69.93, 107.96 | 93.69 | 11/07/2025 | 16:33:31 | -69.93, 107.89 | 93.70 | 2.54 | 55 |
| 15 | 11/10/2025 | 07:09:50 | -70.14,-111.19 | 92.74 | 11/10/2025 | 07:11:02 | -70.15,-111.18 | 92.73 | 1.54 | 72 |
| 16 | 11/10/2025 | 08:00:34 | 70.03, 56.29 | 87.16 | 11/10/2025 | 08:00:29 | 70.04, 56.30 | 87.17 | 0.94 | 5 |
| 17 | 11/10/2025 | 08:51:14 | -69.84,-136.10 | 93.02 | 11/10/2025 | 08:50:00 | -69.88,-136.29 | 92.98 | 8.70 | 74 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/27/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/27/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8