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: 8/24/2025
| 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 | 08/24/2025 | 22:37:24 | 70.04,-162.96 | 59.24 | 08/24/2025 | 22:37:51 | 70.05,-163.04 | 59.24 | 3.23 | 27 |
| 2 | 08/24/2025 | 23:28:07 | -69.98, 4.45 | 120.82 | 08/24/2025 | 23:27:20 | -69.99, 4.51 | 120.81 | 2.49 | 47 |
| 3 | 08/27/2025 | 14:03:39 | -70.36, 145.01 | 119.52 | 08/27/2025 | 14:04:50 | -70.29, 145.54 | 119.61 | 21.29 | 71 |
| 4 | 08/27/2025 | 14:54:18 | 70.01, -47.13 | 60.13 | 08/27/2025 | 14:54:20 | 70.03, -47.19 | 60.14 | 3.14 | 2 |
| 5 | 08/27/2025 | 15:45:01 | -69.94, 120.28 | 119.93 | 08/27/2025 | 15:43:50 | -69.91, 120.28 | 119.96 | 3.46 | 71 |
| 6 | 08/30/2025 | 06:20:29 | -70.12, -98.84 | 118.83 | 08/30/2025 | 06:21:22 | -70.09, -98.86 | 118.87 | 3.33 | 53 |
| 7 | 08/30/2025 | 07:11:12 | 69.98, 68.69 | 61.04 | 08/30/2025 | 07:10:49 | 69.98, 68.63 | 61.05 | 2.26 | 23 |
| 8 | 08/30/2025 | 08:01:40 | -69.12,-122.75 | 119.84 | 08/30/2025 | 08:00:32 | -69.16,-124.85 | 119.74 | 83.26 | 68 |
| 9 | 09/01/2025 | 22:37:22 | -70.09, 16.98 | 117.89 | 09/01/2025 | 22:37:49 | -70.09, 17.02 | 117.91 | 1.77 | 27 |
| 10 | 09/01/2025 | 23:28:05 | 69.95,-175.50 | 61.98 | 09/01/2025 | 23:27:16 | 69.98,-175.49 | 62.00 | 3.02 | 49 |
| 11 | 09/04/2025 | 14:03:35 | 70.24, -34.79 | 63.23 | 09/04/2025 | 14:04:46 | 70.22, -34.53 | 63.20 | 10.07 | 71 |
| 12 | 09/04/2025 | 14:54:15 | -70.02, 132.86 | 116.99 | 09/04/2025 | 14:54:18 | -70.01, 132.80 | 117.00 | 2.58 | 3 |
| 13 | 09/04/2025 | 15:44:58 | 69.87, -59.61 | 62.88 | 09/04/2025 | 15:43:45 | 69.90, -59.71 | 62.91 | 4.66 | 73 |
| 14 | 09/07/2025 | 06:20:27 | 70.11, 81.17 | 64.09 | 09/07/2025 | 06:21:15 | 70.13, 81.23 | 64.10 | 2.47 | 48 |
| 15 | 09/07/2025 | 07:11:09 | -70.00,-111.34 | 116.02 | 09/07/2025 | 07:10:45 | -70.02,-111.29 | 116.00 | 3.25 | 24 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 8/24/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 08/24/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8