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: 10/26/2025
| 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 | 10/27/2025 | 22:36:43 | 70.96,-164.18 | 83.97 | 10/27/2025 | 22:37:50 | 70.83,-161.93 | 83.84 | 83.12 | 67 |
| 2 | 10/27/2025 | 23:27:09 | -70.06, 4.58 | 96.93 | 10/27/2025 | 23:27:32 | -70.06, 4.57 | 96.93 | 0.48 | 23 |
| 3 | 10/28/2025 | 00:17:54 | 69.97, 172.02 | 83.00 | 10/28/2025 | 00:16:59 | 69.96, 172.07 | 82.98 | 2.45 | 55 |
| 4 | 10/30/2025 | 14:53:20 | 70.26, -47.25 | 84.15 | 10/30/2025 | 14:54:31 | 70.24, -46.93 | 84.13 | 11.95 | 71 |
| 5 | 10/30/2025 | 15:43:59 | -70.04, 120.41 | 96.07 | 10/30/2025 | 15:44:03 | -70.02, 120.39 | 96.08 | 1.70 | 4 |
| 6 | 10/30/2025 | 16:34:43 | 69.90, -72.07 | 83.81 | 10/30/2025 | 16:33:30 | 69.92, -72.12 | 83.82 | 2.40 | 73 |
| 7 | 11/02/2025 | 07:10:08 | 70.14, 68.73 | 84.89 | 11/02/2025 | 07:11:03 | 70.12, 68.76 | 84.86 | 3.21 | 55 |
| 8 | 11/02/2025 | 08:00:49 | -70.02,-123.77 | 95.23 | 11/02/2025 | 08:00:33 | -70.01,-123.75 | 95.24 | 1.15 | 16 |
| 9 | 11/02/2025 | 08:51:20 | 69.20, 44.74 | 83.97 | 11/02/2025 | 08:50:12 | 69.24, 42.84 | 84.00 | 75.04 | 68 |
| 10 | 11/04/2025 | 23:26:56 | 70.09,-175.39 | 85.66 | 11/04/2025 | 23:27:32 | 70.07,-175.42 | 85.64 | 1.99 | 36 |
| 11 | 11/05/2025 | 00:17:37 | -69.96, -7.88 | 94.46 | 11/05/2025 | 00:17:02 | -69.97, -7.93 | 94.45 | 2.16 | 35 |
| 12 | 11/07/2025 | 14:53:15 | -70.89, 131.81 | 92.75 | 11/07/2025 | 14:54:23 | -70.77, 133.85 | 92.87 | 75.67 | 68 |
| 13 | 11/07/2025 | 15:43:45 | 70.04, -59.53 | 86.41 | 11/07/2025 | 15:44:01 | 70.05, -59.56 | 86.42 | 1.79 | 16 |
| 14 | 11/07/2025 | 16:34:27 | -69.96, 107.91 | 93.66 | 11/07/2025 | 16:33:31 | -69.95, 107.93 | 93.67 | 1.05 | 56 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/26/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/26/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8