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: 10/27/2025
| 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 | 10/27/2025 | 23:26:52 | 70.07,-175.48 | 83.08 | 10/27/2025 | 23:27:32 | 70.05,-175.41 | 83.07 | 2.97 | 40 |
| 2 | 10/28/2025 | 00:17:33 | -69.94, -7.96 | 97.04 | 10/28/2025 | 00:17:02 | -69.94, -7.94 | 97.04 | 0.71 | 31 |
| 3 | 10/30/2025 | 14:53:15 | -70.52, 132.25 | 95.59 | 10/30/2025 | 14:54:25 | -70.44, 133.39 | 95.68 | 43.39 | 70 |
| 4 | 10/30/2025 | 15:43:52 | 70.02, -59.65 | 83.92 | 10/30/2025 | 15:43:58 | 70.00, -59.59 | 83.90 | 3.17 | 6 |
| 5 | 10/30/2025 | 16:34:33 | -69.89, 107.86 | 96.21 | 10/30/2025 | 16:33:28 | -69.89, 107.89 | 96.21 | 0.87 | 65 |
| 6 | 11/02/2025 | 07:10:08 | -70.06,-111.28 | 95.20 | 11/02/2025 | 07:10:57 | -70.09,-111.22 | 95.18 | 3.24 | 49 |
| 7 | 11/02/2025 | 08:00:52 | 69.93, 56.24 | 84.68 | 11/02/2025 | 08:00:25 | 69.92, 56.19 | 84.67 | 2.01 | 27 |
| 8 | 11/02/2025 | 08:51:17 | -68.95,-135.03 | 96.29 | 11/02/2025 | 08:50:10 | -68.98,-137.43 | 96.26 | 95.69 | 67 |
| 9 | 11/04/2025 | 22:36:37 | 70.64,-163.75 | 86.20 | 11/04/2025 | 22:37:46 | 70.52,-162.32 | 86.09 | 54.50 | 69 |
| 10 | 11/04/2025 | 23:27:09 | -70.03, 4.52 | 94.40 | 11/04/2025 | 23:27:23 | -70.03, 4.60 | 94.40 | 2.83 | 14 |
| 11 | 11/05/2025 | 00:17:53 | 69.90, 172.03 | 85.48 | 11/05/2025 | 00:16:50 | 69.92, 172.08 | 85.50 | 2.72 | 63 |
| 12 | 11/07/2025 | 14:53:27 | 70.04, -47.05 | 86.40 | 11/07/2025 | 14:54:19 | 70.05, -47.11 | 86.41 | 2.39 | 52 |
| 13 | 11/07/2025 | 15:44:09 | -69.96, 120.39 | 93.68 | 11/07/2025 | 15:43:49 | -69.94, 120.37 | 93.69 | 1.60 | 20 |
| 14 | 11/07/2025 | 16:34:37 | 68.97, -70.88 | 85.36 | 11/07/2025 | 16:33:31 | 68.99, -73.25 | 85.37 | 94.40 | 66 |
| 15 | 11/10/2025 | 06:19:56 | -70.83, -99.88 | 92.05 | 11/10/2025 | 06:21:04 | -70.76, -97.81 | 92.13 | 76.10 | 68 |
| 16 | 11/10/2025 | 07:10:27 | 70.02, 68.72 | 87.15 | 11/10/2025 | 07:10:42 | 70.04, 68.78 | 87.16 | 2.57 | 15 |
| 17 | 11/10/2025 | 08:01:08 | -69.89,-123.76 | 92.98 | 11/10/2025 | 08:00:13 | -69.88,-123.81 | 92.99 | 2.45 | 55 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 10/27/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 10/27/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9