Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/13/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 11/15/2025 | 14:53:44 | -70.11, 132.79 | 91.36 | 11/15/2025 | 14:54:40 | -70.09, 132.86 | 91.37 | 3.26 | 56 |
| 2 | 11/15/2025 | 15:44:28 | 69.97, -59.69 | 88.51 | 11/15/2025 | 15:44:07 | 69.99, -59.65 | 88.53 | 2.74 | 21 |
| 3 | 11/15/2025 | 16:34:57 | -69.21, 108.74 | 92.24 | 11/15/2025 | 16:33:48 | -69.27, 107.01 | 92.18 | 68.32 | 69 |
| 4 | 11/18/2025 | 06:20:17 | 70.99, 79.80 | 90.19 | 11/18/2025 | 06:21:23 | 70.91, 82.34 | 90.11 | 92.63 | 66 |
| 5 | 11/18/2025 | 07:10:42 | -70.03,-111.33 | 90.78 | 11/18/2025 | 07:11:07 | -70.04,-111.33 | 90.77 | 1.16 | 25 |
| 6 | 11/18/2025 | 08:01:27 | 69.94, 56.11 | 89.14 | 11/18/2025 | 08:00:34 | 69.93, 56.16 | 89.13 | 2.62 | 53 |
| 7 | 11/20/2025 | 22:37:00 | 70.09,-162.99 | 89.89 | 11/20/2025 | 22:38:04 | 70.09,-162.99 | 89.89 | 0.19 | 64 |
| 8 | 11/20/2025 | 23:27:41 | -69.96, 4.53 | 90.24 | 11/20/2025 | 23:27:34 | -69.98, 4.49 | 90.22 | 2.92 | 7 |
| 9 | 11/21/2025 | 00:18:18 | 69.45, 172.59 | 89.27 | 11/21/2025 | 00:17:07 | 69.54, 171.52 | 89.35 | 42.55 | 71 |
| 10 | 11/23/2025 | 14:53:59 | 70.04, -47.15 | 90.41 | 11/23/2025 | 14:54:30 | 70.03, -47.18 | 90.40 | 1.05 | 31 |
| 11 | 11/23/2025 | 15:44:40 | -69.91, 120.37 | 89.72 | 11/23/2025 | 15:44:00 | -69.93, 120.31 | 89.70 | 3.30 | 40 |
| 12 | 11/26/2025 | 06:20:15 | -70.18, -98.92 | 88.94 | 11/26/2025 | 06:21:27 | -70.15, -98.75 | 88.97 | 7.17 | 72 |
| 13 | 11/26/2025 | 07:10:58 | 70.00, 68.67 | 90.89 | 11/26/2025 | 07:10:55 | 69.98, 68.65 | 90.87 | 2.69 | 3 |
| 14 | 11/26/2025 | 08:01:38 | -69.81,-123.73 | 89.29 | 11/26/2025 | 08:00:26 | -69.82,-123.94 | 89.29 | 8.09 | 72 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/13/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 11/13/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9