Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 8/2/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 08/02/2025 | 05:55:15 | 70.41, 87.03 | 52.74 | 08/02/2025 | 05:56:25 | 70.33, 87.69 | 52.62 | 25.86 | 70 |
| 2 | 08/02/2025 | 06:45:52 | -70.04,-105.07 | 127.65 | 08/02/2025 | 06:45:58 | -70.06,-105.08 | 127.63 | 2.38 | 6 |
| 3 | 08/02/2025 | 07:36:36 | 69.94, 62.39 | 52.26 | 08/02/2025 | 07:35:25 | 69.96, 62.42 | 52.28 | 2.28 | 71 |
| 4 | 08/04/2025 | 22:12:05 | 70.13,-156.76 | 53.15 | 08/04/2025 | 22:13:01 | 70.11,-156.77 | 53.11 | 2.55 | 56 |
| 5 | 08/04/2025 | 23:02:47 | -70.01, 10.74 | 126.97 | 08/04/2025 | 23:02:31 | -70.00, 10.71 | 126.98 | 1.82 | 16 |
| 6 | 08/04/2025 | 23:53:18 | 69.23, 179.19 | 52.23 | 08/04/2025 | 23:52:09 | 69.29, 177.38 | 52.36 | 71.32 | 69 |
| 7 | 08/07/2025 | 14:28:59 | 70.06, -40.88 | 53.81 | 08/07/2025 | 14:29:33 | 70.08, -40.93 | 53.83 | 2.77 | 34 |
| 8 | 08/07/2025 | 15:19:42 | -69.99, 126.54 | 126.25 | 08/07/2025 | 15:19:03 | -69.98, 126.55 | 126.27 | 1.98 | 39 |
| 9 | 08/10/2025 | 05:55:20 | -70.71, -93.44 | 124.75 | 08/10/2025 | 05:56:29 | -70.58, -91.97 | 124.94 | 56.12 | 69 |
| 10 | 08/10/2025 | 06:45:53 | 70.05, 74.90 | 54.57 | 08/10/2025 | 06:46:04 | 70.04, 74.88 | 54.55 | 2.10 | 11 |
| 11 | 08/10/2025 | 07:36:35 | -69.93,-117.59 | 125.56 | 08/10/2025 | 07:35:34 | -69.93,-117.63 | 125.54 | 1.74 | 61 |
| 12 | 08/12/2025 | 22:12:04 | -70.12, 23.25 | 124.57 | 08/12/2025 | 22:13:08 | -70.14, 23.26 | 124.57 | 1.75 | 64 |
| 13 | 08/12/2025 | 23:02:48 | 70.05,-169.32 | 55.36 | 08/12/2025 | 23:02:35 | 70.03,-169.26 | 55.34 | 3.41 | 13 |
| 14 | 08/12/2025 | 23:53:22 | -69.50, -1.19 | 125.21 | 08/12/2025 | 23:52:11 | -69.60, -2.22 | 125.06 | 41.80 | 71 |
| 15 | 08/15/2025 | 14:28:59 | -70.12, 139.03 | 123.75 | 08/15/2025 | 14:29:39 | -70.11, 139.10 | 123.77 | 2.66 | 40 |
| 16 | 08/15/2025 | 15:19:42 | 70.00, -53.47 | 56.13 | 08/15/2025 | 15:19:06 | 70.00, -53.42 | 56.13 | 1.91 | 36 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 8/2/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 08/02/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9