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: 5/10/2025
| 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 | 05/10/2025 | 07:09:08 | -70.52,-111.98 | 127.25 | 05/10/2025 | 07:10:19 | -70.40,-110.90 | 127.40 | 42.39 | 71 |
| 2 | 05/10/2025 | 07:59:44 | 70.00, 56.15 | 52.20 | 05/10/2025 | 07:59:52 | 69.97, 56.13 | 52.17 | 3.23 | 8 |
| 3 | 05/10/2025 | 08:50:26 | -69.89,-136.38 | 127.92 | 05/10/2025 | 08:49:21 | -69.91,-136.33 | 127.90 | 2.43 | 65 |
| 4 | 05/12/2025 | 23:25:56 | -70.08, 4.47 | 128.38 | 05/12/2025 | 23:26:50 | -70.08, 4.53 | 128.39 | 2.15 | 54 |
| 5 | 05/13/2025 | 00:16:39 | 69.93, 172.01 | 51.46 | 05/13/2025 | 00:16:18 | 69.93, 171.95 | 51.45 | 2.44 | 21 |
| 6 | 05/13/2025 | 01:07:08 | -69.13, -19.51 | 129.38 | 05/13/2025 | 01:06:00 | -69.15, -21.46 | 129.31 | 77.06 | 68 |
| 7 | 05/15/2025 | 14:52:27 | 71.02, -48.59 | 51.97 | 05/15/2025 | 14:53:33 | 70.90, -46.01 | 51.78 | 94.68 | 66 |
| 8 | 05/15/2025 | 15:42:52 | -70.02, 120.34 | 129.09 | 05/15/2025 | 15:43:17 | -70.02, 120.32 | 129.10 | 0.72 | 25 |
| 9 | 05/15/2025 | 16:33:36 | 69.92, -72.21 | 50.81 | 05/15/2025 | 16:32:44 | 69.91, -72.18 | 50.79 | 1.88 | 52 |
| 10 | 05/18/2025 | 07:09:06 | 70.08, 68.70 | 50.38 | 05/18/2025 | 07:10:13 | 70.09, 68.68 | 50.38 | 1.38 | 67 |
| 11 | 05/18/2025 | 07:59:48 | -69.96,-123.80 | 129.75 | 05/18/2025 | 07:59:43 | -69.97,-123.85 | 129.74 | 2.38 | 5 |
| 12 | 05/18/2025 | 08:50:26 | 69.55, 44.11 | 49.82 | 05/18/2025 | 08:49:15 | 69.59, 43.27 | 49.88 | 33.08 | 71 |
| 13 | 05/20/2025 | 23:26:02 | 70.03,-175.46 | 49.77 | 05/20/2025 | 23:26:39 | 70.02,-175.53 | 49.75 | 3.06 | 37 |
| 14 | 05/21/2025 | 00:16:45 | -69.96, -8.04 | 130.32 | 05/21/2025 | 00:16:08 | -69.96, -7.97 | 130.31 | 2.51 | 37 |
| 15 | 05/23/2025 | 14:52:20 | -70.43, 132.37 | 130.33 | 05/23/2025 | 14:53:31 | -70.36, 133.21 | 130.43 | 32.68 | 71 |
| 16 | 05/23/2025 | 15:42:57 | 69.98, -59.62 | 49.20 | 05/23/2025 | 15:43:03 | 69.97, -59.70 | 49.19 | 2.99 | 6 |
| 17 | 05/23/2025 | 16:33:40 | -69.91, 107.80 | 130.88 | 05/23/2025 | 16:32:32 | -69.92, 107.86 | 130.87 | 2.70 | 68 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/10/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 05/10/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9