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: 8/25/2025
| 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 | 08/27/2025 | 14:03:38 | -70.33, 145.06 | 119.56 | 08/27/2025 | 14:04:50 | -70.27, 145.51 | 119.64 | 18.18 | 72 |
| 2 | 08/27/2025 | 14:54:18 | 70.03, -47.17 | 60.15 | 08/27/2025 | 14:54:20 | 70.01, -47.22 | 60.12 | 3.33 | 2 |
| 3 | 08/27/2025 | 15:45:00 | -69.91, 120.32 | 119.96 | 08/27/2025 | 15:43:49 | -69.95, 120.33 | 119.93 | 3.54 | 71 |
| 4 | 08/30/2025 | 06:20:29 | -70.14, -98.88 | 118.81 | 08/30/2025 | 06:21:21 | -70.12, -98.82 | 118.83 | 3.10 | 52 |
| 5 | 08/30/2025 | 07:11:12 | 70.00, 68.65 | 61.06 | 08/30/2025 | 07:10:48 | 70.02, 68.68 | 61.08 | 2.26 | 24 |
| 6 | 08/30/2025 | 08:01:39 | -69.09,-122.71 | 119.87 | 08/30/2025 | 08:00:32 | -69.13,-124.88 | 119.76 | 86.21 | 67 |
| 7 | 09/01/2025 | 22:37:22 | -70.06, 17.02 | 117.92 | 09/01/2025 | 22:37:50 | -70.06, 16.99 | 117.93 | 1.20 | 28 |
| 8 | 09/01/2025 | 23:28:06 | 69.97,-175.53 | 62.00 | 09/01/2025 | 23:27:17 | 69.95,-175.52 | 61.98 | 2.09 | 49 |
| 9 | 09/04/2025 | 14:03:36 | 70.26, -34.83 | 63.25 | 09/04/2025 | 14:04:47 | 70.20, -34.56 | 63.18 | 12.25 | 71 |
| 10 | 09/04/2025 | 14:54:16 | -70.04, 132.82 | 116.97 | 09/04/2025 | 14:54:18 | -70.04, 132.84 | 116.97 | 0.86 | 2 |
| 11 | 09/04/2025 | 15:44:58 | 69.85, -59.57 | 62.85 | 09/04/2025 | 15:43:46 | 69.87, -59.74 | 62.88 | 7.37 | 72 |
| 12 | 09/07/2025 | 06:20:26 | 70.09, 81.21 | 64.06 | 09/07/2025 | 06:21:15 | 70.10, 81.19 | 64.08 | 1.97 | 49 |
| 13 | 09/07/2025 | 07:11:08 | -69.98,-111.30 | 116.04 | 09/07/2025 | 07:10:45 | -70.00,-111.32 | 116.02 | 2.86 | 23 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/25/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/25/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8