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: 4/4/2025
| 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 | 04/04/2025 | 06:45:16 | 70.13, 74.99 | 64.28 | 04/04/2025 | 06:45:50 | 70.15, 74.96 | 64.29 | 2.00 | 34 |
| 2 | 04/04/2025 | 07:35:58 | -70.02,-117.53 | 115.86 | 04/04/2025 | 07:35:20 | -70.04,-117.56 | 115.84 | 2.19 | 38 |
| 3 | 04/06/2025 | 22:11:37 | -70.92, 22.20 | 115.91 | 04/06/2025 | 22:12:45 | -70.79, 24.13 | 116.10 | 71.88 | 68 |
| 4 | 04/06/2025 | 23:02:07 | 70.11,-169.19 | 63.23 | 04/06/2025 | 23:02:23 | 70.09,-169.26 | 63.21 | 3.52 | 16 |
| 5 | 04/06/2025 | 23:52:50 | -70.04, -1.77 | 116.86 | 04/06/2025 | 23:51:52 | -70.04, -1.70 | 116.86 | 2.71 | 58 |
| 6 | 04/09/2025 | 14:28:16 | -70.27, 139.03 | 117.59 | 04/09/2025 | 14:29:27 | -70.24, 139.17 | 117.64 | 6.81 | 71 |
| 7 | 04/09/2025 | 15:18:58 | 70.09, -53.38 | 62.21 | 04/09/2025 | 15:18:55 | 70.08, -53.42 | 62.19 | 2.25 | 3 |
| 8 | 04/09/2025 | 16:09:39 | -69.92, 114.20 | 117.99 | 04/09/2025 | 16:08:25 | -69.97, 114.07 | 117.92 | 7.79 | 74 |
| 9 | 04/12/2025 | 06:45:04 | -70.17,-105.02 | 118.69 | 04/12/2025 | 06:45:59 | -70.17,-105.07 | 118.70 | 1.87 | 55 |
| 10 | 04/12/2025 | 07:35:47 | 70.04, 62.49 | 61.17 | 04/12/2025 | 07:35:26 | 70.06, 62.42 | 61.19 | 3.42 | 21 |
| 11 | 04/12/2025 | 08:26:16 | -69.23,-129.01 | 119.69 | 04/12/2025 | 08:25:08 | -69.30,-130.98 | 119.56 | 78.17 | 68 |
| 12 | 04/14/2025 | 23:01:55 | -70.18, 10.75 | 119.65 | 04/14/2025 | 23:02:31 | -70.15, 10.77 | 119.68 | 2.97 | 36 |
| 13 | 04/14/2025 | 23:52:38 | 70.05, 178.25 | 60.21 | 04/14/2025 | 23:51:58 | 70.04, 178.26 | 60.20 | 1.57 | 40 |
| 14 | 04/17/2025 | 14:28:15 | 70.91, -41.95 | 60.18 | 04/17/2025 | 14:29:23 | 70.77, -40.08 | 59.99 | 70.18 | 68 |
| 15 | 04/17/2025 | 15:18:45 | -70.15, 126.58 | 120.63 | 04/17/2025 | 15:19:03 | -70.13, 126.60 | 120.66 | 2.57 | 18 |
| 16 | 04/17/2025 | 16:09:28 | 70.03, -65.92 | 59.24 | 04/17/2025 | 16:08:30 | 70.01, -65.91 | 59.22 | 1.71 | 58 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/4/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/04/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9