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: 11/29/2025
| 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 | 12/01/2025 | 14:53:59 | 70.07, -47.10 | 91.86 | 12/01/2025 | 14:54:32 | 70.09, -47.16 | 91.88 | 2.97 | 33 |
| 2 | 12/01/2025 | 15:44:41 | -69.96, 120.38 | 88.25 | 12/01/2025 | 15:44:02 | -69.98, 120.31 | 88.23 | 2.93 | 39 |
| 3 | 12/04/2025 | 06:20:19 | -70.38, -99.14 | 87.45 | 12/04/2025 | 06:21:31 | -70.27, -98.66 | 87.57 | 21.59 | 72 |
| 4 | 12/04/2025 | 07:10:59 | 70.07, 68.65 | 92.25 | 12/04/2025 | 07:11:00 | 70.05, 68.67 | 92.22 | 2.47 | 1 |
| 5 | 12/04/2025 | 08:01:41 | -69.95,-123.86 | 87.87 | 12/04/2025 | 08:00:30 | -69.94,-123.85 | 87.89 | 1.71 | 71 |
| 6 | 12/06/2025 | 22:37:14 | -70.12, 17.02 | 87.39 | 12/06/2025 | 22:38:01 | -70.10, 16.99 | 87.41 | 2.34 | 47 |
| 7 | 12/06/2025 | 23:27:57 | 69.97,-175.45 | 92.48 | 12/06/2025 | 23:27:28 | 69.99,-175.53 | 92.49 | 3.48 | 29 |
| 8 | 12/09/2025 | 14:03:40 | 70.73, -35.50 | 93.52 | 12/09/2025 | 14:04:49 | 70.62, -34.00 | 93.39 | 56.61 | 69 |
| 9 | 12/09/2025 | 14:54:12 | -70.07, 132.85 | 87.15 | 12/09/2025 | 14:54:27 | -70.07, 132.84 | 87.16 | 0.41 | 15 |
| 10 | 12/09/2025 | 15:44:55 | 69.93, -59.63 | 92.71 | 12/09/2025 | 15:43:54 | 69.96, -59.68 | 92.74 | 3.16 | 61 |
| 11 | 12/12/2025 | 06:20:28 | 70.12, 81.22 | 93.12 | 12/12/2025 | 06:21:24 | 70.13, 81.17 | 93.12 | 2.26 | 56 |
| 12 | 12/12/2025 | 07:11:11 | -70.04,-111.34 | 86.97 | 12/12/2025 | 07:10:54 | -70.02,-111.34 | 86.98 | 1.59 | 17 |
| 13 | 12/12/2025 | 08:01:41 | 69.21, 57.18 | 92.20 | 12/12/2025 | 08:00:33 | 69.24, 55.24 | 92.26 | 76.37 | 68 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 11/29/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 11/29/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8