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: 9/7/2025
| 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 | 09/07/2025 | 07:10:01 | 70.05, 68.67 | 64.04 | 09/07/2025 | 07:10:58 | 70.05, 68.70 | 64.03 | 1.22 | 57 |
| 2 | 09/07/2025 | 08:00:43 | -69.95,-123.86 | 116.05 | 09/07/2025 | 08:00:28 | -69.93,-123.83 | 116.07 | 2.79 | 15 |
| 3 | 09/07/2025 | 08:51:14 | 69.16, 44.60 | 63.15 | 09/07/2025 | 08:50:06 | 69.22, 42.85 | 63.26 | 69.50 | 68 |
| 4 | 09/09/2025 | 23:26:54 | 70.02,-175.50 | 65.02 | 09/09/2025 | 23:27:28 | 70.03,-175.45 | 65.02 | 2.02 | 34 |
| 5 | 09/10/2025 | 00:17:36 | -69.92, -8.03 | 115.08 | 09/10/2025 | 00:16:58 | -69.91, -7.98 | 115.09 | 2.12 | 38 |
| 6 | 09/12/2025 | 14:53:13 | -70.62, 132.03 | 113.37 | 09/12/2025 | 14:54:23 | -70.52, 133.50 | 113.50 | 55.48 | 70 |
| 7 | 09/12/2025 | 15:43:47 | 70.00, -59.69 | 66.01 | 09/12/2025 | 15:43:58 | 69.98, -59.64 | 65.98 | 3.11 | 11 |
| 8 | 09/12/2025 | 16:34:28 | -69.84, 107.87 | 114.15 | 09/12/2025 | 16:33:28 | -69.87, 107.84 | 114.12 | 3.26 | 60 |
| 9 | 09/15/2025 | 07:09:56 | -70.07,-111.33 | 112.91 | 09/15/2025 | 07:11:00 | -70.06,-111.28 | 112.93 | 2.41 | 64 |
| 10 | 09/15/2025 | 08:00:39 | 69.93, 56.20 | 66.96 | 09/15/2025 | 08:00:27 | 69.95, 56.21 | 66.98 | 2.29 | 12 |
| 11 | 09/15/2025 | 08:51:14 | -69.45,-135.77 | 113.52 | 09/15/2025 | 08:50:03 | -69.51,-136.76 | 113.44 | 39.06 | 71 |
| 12 | 09/17/2025 | 23:26:47 | -70.01, 4.56 | 111.95 | 09/17/2025 | 23:27:28 | -70.01, 4.53 | 111.95 | 0.84 | 41 |
| 13 | 09/18/2025 | 00:17:31 | 69.92, 172.00 | 67.98 | 09/18/2025 | 00:16:55 | 69.90, 172.02 | 67.96 | 2.98 | 36 |
| 14 | 09/20/2025 | 14:53:09 | 70.70, -48.07 | 69.79 | 09/20/2025 | 14:54:17 | 70.58, -46.38 | 69.64 | 63.79 | 68 |
| 15 | 09/20/2025 | 15:43:40 | -70.00, 120.35 | 110.92 | 09/20/2025 | 15:43:56 | -69.98, 120.39 | 110.94 | 2.93 | 16 |
| 16 | 09/20/2025 | 16:34:23 | 69.87, -72.14 | 68.96 | 09/20/2025 | 16:33:23 | 69.87, -72.13 | 68.96 | 0.24 | 60 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/7/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/07/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9