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: 9/28/2025
| 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 | 10/01/2025 | 06:20:16 | -70.51, -99.37 | 106.29 | 10/01/2025 | 06:21:27 | -70.39, -98.46 | 106.42 | 36.14 | 71 |
| 2 | 10/01/2025 | 07:10:54 | 70.05, 68.65 | 73.27 | 10/01/2025 | 07:10:58 | 70.07, 68.72 | 73.28 | 2.94 | 4 |
| 3 | 10/01/2025 | 08:01:35 | -69.94,-123.86 | 106.84 | 10/01/2025 | 08:00:28 | -69.95,-123.81 | 106.83 | 2.34 | 67 |
| 4 | 10/03/2025 | 22:37:00 | -70.12, 17.03 | 105.65 | 10/03/2025 | 22:37:58 | -70.11, 17.03 | 105.66 | 0.29 | 58 |
| 5 | 10/03/2025 | 23:27:44 | 69.98,-175.45 | 74.23 | 10/03/2025 | 23:27:25 | 70.01,-175.48 | 74.25 | 3.27 | 19 |
| 6 | 10/04/2025 | 00:18:14 | -69.28, -7.11 | 106.47 | 10/04/2025 | 00:17:05 | -69.35, -8.75 | 106.40 | 64.69 | 69 |
| 7 | 10/06/2025 | 14:53:51 | -70.05, 132.91 | 104.69 | 10/06/2025 | 14:54:25 | -70.07, 132.87 | 104.67 | 3.04 | 34 |
| 8 | 10/06/2025 | 15:44:36 | 69.97, -59.65 | 75.24 | 10/06/2025 | 15:43:52 | 69.96, -59.65 | 75.24 | 0.55 | 44 |
| 9 | 10/09/2025 | 06:20:07 | 70.43, 80.79 | 76.71 | 10/09/2025 | 06:21:18 | 70.32, 81.48 | 76.59 | 28.85 | 71 |
| 10 | 10/09/2025 | 07:10:43 | -70.05,-111.30 | 103.67 | 10/09/2025 | 07:10:51 | -70.05,-111.27 | 103.68 | 0.98 | 8 |
| 11 | 10/09/2025 | 08:01:27 | 69.91, 56.21 | 76.21 | 10/09/2025 | 08:00:18 | 69.93, 56.21 | 76.23 | 2.08 | 69 |
| 12 | 10/11/2025 | 22:36:53 | 70.13,-162.95 | 77.41 | 10/11/2025 | 22:37:46 | 70.14,-162.87 | 77.42 | 3.21 | 53 |
| 13 | 10/11/2025 | 23:27:34 | -70.01, 4.55 | 102.70 | 10/11/2025 | 23:27:17 | -69.98, 4.53 | 102.73 | 3.14 | 17 |
| 14 | 10/12/2025 | 00:18:04 | 69.13, 173.14 | 76.44 | 10/12/2025 | 00:16:56 | 69.20, 171.12 | 76.51 | 80.25 | 68 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/28/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 09/28/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8