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: 10/17/2025
| 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 | 10/17/2025 | 08:00:12 | 70.00, 56.26 | 79.28 | 10/17/2025 | 08:00:36 | 70.01, 56.26 | 79.28 | 0.38 | 24 |
| 2 | 10/17/2025 | 08:50:54 | -69.91,-136.28 | 100.80 | 10/17/2025 | 08:50:06 | -69.89,-136.27 | 100.82 | 2.11 | 48 |
| 3 | 10/19/2025 | 23:26:30 | -70.10, 4.56 | 99.67 | 10/19/2025 | 23:27:38 | -70.09, 4.62 | 99.68 | 2.34 | 68 |
| 4 | 10/20/2025 | 00:17:14 | 69.97, 172.06 | 80.22 | 10/20/2025 | 00:17:05 | 69.99, 172.11 | 80.23 | 2.91 | 9 |
| 5 | 10/20/2025 | 01:07:51 | -69.62, -20.10 | 100.13 | 10/20/2025 | 01:06:39 | -69.66, -20.71 | 100.09 | 24.13 | 72 |
| 6 | 10/22/2025 | 15:43:31 | -70.02, 120.42 | 98.80 | 10/22/2025 | 15:44:07 | -70.05, 120.44 | 98.77 | 3.38 | 36 |
| 7 | 10/22/2025 | 16:34:15 | 69.89, -72.08 | 81.09 | 10/22/2025 | 16:33:35 | 69.88, -72.15 | 81.08 | 2.87 | 40 |
| 8 | 10/25/2025 | 07:09:52 | 70.20, 68.58 | 82.30 | 10/25/2025 | 07:11:04 | 70.13, 68.81 | 82.23 | 11.78 | 72 |
| 9 | 10/25/2025 | 08:00:31 | -69.95,-123.72 | 97.94 | 10/25/2025 | 08:00:35 | -69.97,-123.78 | 97.92 | 3.20 | 4 |
| 10 | 10/25/2025 | 08:51:15 | 69.82, 43.77 | 81.95 | 10/25/2025 | 08:50:02 | 69.85, 43.70 | 81.98 | 4.28 | 73 |
| 11 | 10/27/2025 | 23:26:51 | 70.03,-175.42 | 83.04 | 10/27/2025 | 23:27:33 | 70.01,-175.47 | 83.02 | 2.75 | 42 |
| 12 | 10/28/2025 | 00:17:33 | -69.94, -7.96 | 97.04 | 10/28/2025 | 00:17:03 | -69.91, -7.98 | 97.07 | 3.23 | 30 |
| 13 | 10/30/2025 | 14:53:17 | -70.57, 132.17 | 95.54 | 10/30/2025 | 14:54:27 | -70.42, 133.37 | 95.69 | 47.49 | 70 |
| 14 | 10/30/2025 | 15:43:52 | 69.98, -59.59 | 83.87 | 10/30/2025 | 15:44:00 | 69.97, -59.63 | 83.87 | 1.55 | 8 |
| 15 | 10/30/2025 | 16:34:34 | -69.88, 107.87 | 96.21 | 10/30/2025 | 16:33:30 | -69.87, 107.87 | 96.22 | 1.16 | 64 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/17/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/17/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9