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: 10/3/2025
| 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 | 10/03/2025 | 22:37:00 | -70.13, 17.00 | 105.63 | 10/03/2025 | 22:38:01 | -70.13, 17.04 | 105.64 | 1.54 | 61 |
| 2 | 10/03/2025 | 23:27:44 | 69.99,-175.47 | 74.24 | 10/03/2025 | 23:27:29 | 69.98,-175.53 | 74.23 | 2.65 | 15 |
| 3 | 10/04/2025 | 00:18:16 | -69.40, -7.29 | 106.34 | 10/04/2025 | 00:17:06 | -69.48, -8.58 | 106.26 | 51.22 | 70 |
| 4 | 10/06/2025 | 14:53:51 | -70.08, 132.87 | 104.66 | 10/06/2025 | 14:54:32 | -70.11, 132.88 | 104.63 | 3.00 | 41 |
| 5 | 10/06/2025 | 15:44:36 | 69.99, -59.69 | 75.27 | 10/06/2025 | 15:43:59 | 70.00, -59.62 | 75.28 | 2.95 | 37 |
| 6 | 10/09/2025 | 06:20:14 | 70.84, 80.12 | 77.13 | 10/09/2025 | 06:21:22 | 70.74, 82.06 | 77.02 | 71.86 | 68 |
| 7 | 10/09/2025 | 07:10:42 | -70.05,-111.29 | 103.67 | 10/09/2025 | 07:11:03 | -70.03,-111.35 | 103.69 | 2.65 | 21 |
| 8 | 10/09/2025 | 08:01:27 | 69.96, 56.15 | 76.26 | 10/09/2025 | 08:00:29 | 69.98, 56.22 | 76.27 | 3.55 | 58 |
| 9 | 10/11/2025 | 22:36:52 | 70.14,-162.97 | 77.42 | 10/11/2025 | 22:38:02 | 70.12,-162.97 | 77.40 | 2.67 | 70 |
| 10 | 10/11/2025 | 23:27:33 | -70.03, 4.53 | 102.68 | 10/11/2025 | 23:27:32 | -70.01, 4.51 | 102.70 | 1.68 | 1 |
| 11 | 10/12/2025 | 00:18:14 | 69.73, 172.28 | 77.04 | 10/12/2025 | 00:17:01 | 69.79, 171.84 | 77.10 | 18.18 | 73 |
| 12 | 10/14/2025 | 14:53:41 | 70.09, -47.09 | 78.37 | 10/14/2025 | 14:54:29 | 70.10, -47.11 | 78.38 | 1.66 | 48 |
| 13 | 10/14/2025 | 15:44:22 | -69.97, 120.40 | 101.74 | 10/14/2025 | 15:43:59 | -70.00, 120.37 | 101.72 | 3.17 | 23 |
| 14 | 10/17/2025 | 07:10:32 | 70.10, 68.68 | 79.37 | 10/17/2025 | 07:10:56 | 70.08, 68.76 | 79.35 | 3.45 | 24 |
| 15 | 10/17/2025 | 08:01:13 | -69.98,-123.82 | 100.74 | 10/17/2025 | 08:00:26 | -69.98,-123.75 | 100.74 | 2.62 | 47 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/3/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/03/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8