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: 4/22/2025
| 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 | 04/24/2025 | 07:59:28 | 70.00, 56.20 | 56.94 | 04/24/2025 | 07:59:57 | 69.99, 56.17 | 56.94 | 1.04 | 29 |
| 2 | 04/24/2025 | 08:50:10 | -69.90,-136.34 | 123.17 | 04/24/2025 | 08:49:27 | -69.88,-136.35 | 123.19 | 2.66 | 43 |
| 3 | 04/26/2025 | 23:25:43 | -70.15, 4.42 | 123.76 | 04/26/2025 | 23:26:55 | -70.10, 4.57 | 123.82 | 7.60 | 72 |
| 4 | 04/27/2025 | 00:16:25 | 69.93, 172.06 | 56.01 | 04/27/2025 | 00:16:23 | 69.94, 171.99 | 56.02 | 2.88 | 2 |
| 5 | 04/27/2025 | 01:07:06 | -69.78, -20.40 | 124.16 | 04/27/2025 | 01:05:53 | -69.83, -20.54 | 124.11 | 7.42 | 73 |
| 6 | 04/29/2025 | 15:42:39 | -70.04, 120.35 | 124.72 | 04/29/2025 | 15:43:21 | -70.01, 120.33 | 124.75 | 3.03 | 42 |
| 7 | 04/29/2025 | 16:33:22 | 69.88, -72.10 | 55.11 | 04/29/2025 | 16:32:48 | 69.90, -72.18 | 55.13 | 3.69 | 34 |
| 8 | 05/02/2025 | 07:09:00 | 70.41, 68.21 | 54.88 | 05/02/2025 | 07:10:11 | 70.31, 69.03 | 54.75 | 32.67 | 71 |
| 9 | 05/02/2025 | 07:59:36 | -69.99,-123.81 | 125.58 | 05/02/2025 | 07:59:45 | -69.98,-123.80 | 125.58 | 0.34 | 9 |
| 10 | 05/02/2025 | 08:50:19 | 69.89, 43.65 | 54.31 | 05/02/2025 | 08:49:11 | 69.87, 43.68 | 54.30 | 2.39 | 68 |
| 11 | 05/04/2025 | 23:25:49 | 70.01,-175.40 | 53.68 | 05/04/2025 | 23:26:38 | 70.03,-175.48 | 53.69 | 3.31 | 49 |
| 12 | 05/05/2025 | 00:16:32 | -69.95, -7.99 | 126.40 | 05/05/2025 | 00:16:08 | -69.92, -7.99 | 126.43 | 3.34 | 24 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/22/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/22/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9