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: 10/22/2025
| 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 | 10/22/2025 | 14:53:29 | -70.11, 132.93 | 98.72 | 10/22/2025 | 14:54:30 | -70.11, 132.89 | 98.72 | 1.55 | 61 |
| 2 | 10/22/2025 | 15:44:14 | 70.01, -59.62 | 81.20 | 10/22/2025 | 15:43:57 | 70.01, -59.61 | 81.19 | 0.51 | 17 |
| 3 | 10/22/2025 | 16:34:45 | -69.38, 108.64 | 99.43 | 10/22/2025 | 16:33:35 | -69.45, 107.26 | 99.36 | 54.31 | 70 |
| 4 | 10/25/2025 | 07:10:20 | -70.11,-111.29 | 97.78 | 10/25/2025 | 07:10:57 | -70.09,-111.25 | 97.81 | 3.30 | 37 |
| 5 | 10/25/2025 | 08:01:04 | 69.97, 56.23 | 82.09 | 10/25/2025 | 08:00:24 | 69.98, 56.25 | 82.10 | 1.36 | 40 |
| 6 | 10/27/2025 | 22:36:36 | 70.62,-163.61 | 83.62 | 10/27/2025 | 22:37:46 | 70.53,-162.35 | 83.53 | 47.70 | 70 |
| 7 | 10/27/2025 | 23:27:08 | -70.03, 4.63 | 96.96 | 10/27/2025 | 23:27:23 | -70.03, 4.57 | 96.96 | 2.59 | 15 |
| 8 | 10/28/2025 | 00:17:53 | 69.94, 172.07 | 82.97 | 10/28/2025 | 00:16:50 | 69.92, 172.06 | 82.95 | 2.34 | 63 |
| 9 | 10/30/2025 | 14:53:17 | 70.12, -47.04 | 84.01 | 10/30/2025 | 14:54:19 | 70.10, -47.07 | 83.99 | 2.56 | 62 |
| 10 | 10/30/2025 | 15:43:58 | -70.00, 120.46 | 96.10 | 10/30/2025 | 15:43:49 | -70.00, 120.41 | 96.11 | 2.21 | 9 |
| 11 | 10/30/2025 | 16:34:33 | 69.39, -71.33 | 83.31 | 10/30/2025 | 16:33:23 | 69.50, -72.63 | 83.40 | 52.07 | 70 |
| 12 | 11/02/2025 | 07:10:06 | 70.06, 68.85 | 84.81 | 11/02/2025 | 07:10:44 | 70.08, 68.80 | 84.83 | 2.91 | 38 |
| 13 | 11/02/2025 | 08:00:48 | -69.99,-123.72 | 95.26 | 11/02/2025 | 08:00:14 | -69.98,-123.71 | 95.27 | 1.43 | 34 |
| 14 | 11/04/2025 | 22:36:24 | -70.81, 16.14 | 93.62 | 11/04/2025 | 22:37:32 | -70.69, 17.95 | 93.74 | 67.70 | 68 |
| 15 | 11/04/2025 | 23:26:56 | 70.07,-175.36 | 85.64 | 11/04/2025 | 23:27:08 | 70.09,-175.29 | 85.66 | 3.25 | 12 |
| 16 | 11/05/2025 | 00:17:37 | -69.94, -7.84 | 94.49 | 11/05/2025 | 00:16:39 | -69.93, -7.89 | 94.50 | 1.94 | 58 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/22/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/22/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8