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: 9/22/2025
| 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 | 09/23/2025 | 07:09:51 | 70.09, 68.69 | 70.20 | 09/23/2025 | 07:11:01 | 70.10, 68.77 | 70.20 | 3.21 | 70 |
| 2 | 09/23/2025 | 08:00:33 | -69.98,-123.83 | 109.90 | 09/23/2025 | 08:00:31 | -69.98,-123.76 | 109.90 | 2.75 | 2 |
| 3 | 09/23/2025 | 08:51:13 | 69.67, 43.94 | 69.80 | 09/23/2025 | 08:50:01 | 69.72, 43.51 | 69.86 | 17.28 | 72 |
| 4 | 09/25/2025 | 23:26:43 | 70.04,-175.45 | 71.19 | 09/25/2025 | 23:27:32 | 70.05,-175.42 | 71.20 | 1.66 | 49 |
| 5 | 09/26/2025 | 00:17:25 | -69.93, -7.97 | 108.91 | 09/26/2025 | 00:17:02 | -69.94, -7.95 | 108.91 | 1.26 | 23 |
| 6 | 09/26/2025 | 01:07:51 | 68.88, 160.85 | 70.04 | 09/26/2025 | 01:06:45 | 68.95, 158.37 | 70.14 | 99.29 | 66 |
| 7 | 09/28/2025 | 15:43:34 | 70.00, -59.61 | 72.19 | 09/28/2025 | 15:44:01 | 70.03, -59.58 | 72.21 | 3.24 | 27 |
| 8 | 09/28/2025 | 16:34:16 | -69.89, 107.87 | 107.91 | 09/28/2025 | 16:33:31 | -69.92, 107.90 | 107.88 | 3.32 | 45 |
| 9 | 10/01/2025 | 07:09:49 | -70.43,-111.80 | 106.36 | 10/01/2025 | 07:11:00 | -70.30,-110.94 | 106.49 | 34.77 | 71 |
| 10 | 10/01/2025 | 08:00:26 | 69.97, 56.23 | 73.20 | 10/01/2025 | 08:00:31 | 69.97, 56.23 | 73.20 | 0.62 | 5 |
| 11 | 10/01/2025 | 08:51:08 | -69.86,-136.29 | 106.91 | 10/01/2025 | 08:50:01 | -69.87,-136.28 | 106.90 | 1.24 | 67 |
| 12 | 10/03/2025 | 23:26:34 | -70.04, 4.60 | 105.72 | 10/03/2025 | 23:27:33 | -70.06, 4.59 | 105.70 | 2.74 | 59 |
| 13 | 10/04/2025 | 00:17:18 | 69.95, 172.05 | 74.21 | 10/04/2025 | 00:17:00 | 69.95, 172.08 | 74.21 | 1.20 | 18 |
| 14 | 10/04/2025 | 01:07:49 | -69.25, -19.62 | 106.48 | 10/04/2025 | 01:06:40 | -69.29, -21.18 | 106.43 | 61.37 | 69 |
| 15 | 10/06/2025 | 15:43:26 | -70.02, 120.41 | 104.71 | 10/06/2025 | 15:44:02 | -70.01, 120.40 | 104.72 | 1.56 | 36 |
| 16 | 10/06/2025 | 16:34:09 | 69.88, -72.06 | 75.17 | 10/06/2025 | 16:33:29 | 69.89, -72.11 | 75.18 | 2.29 | 40 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 9/22/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 09/22/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9