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: 3/16/2025
| 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 | 03/16/2025 | 14:28:39 | 70.19, -40.91 | 71.68 | 03/16/2025 | 14:29:30 | 70.17, -40.89 | 71.65 | 2.28 | 51 |
| 2 | 03/16/2025 | 15:19:20 | -70.05, 126.62 | 108.49 | 03/16/2025 | 15:19:00 | -70.05, 126.57 | 108.48 | 1.79 | 20 |
| 3 | 03/16/2025 | 16:09:48 | 69.08, -64.67 | 70.49 | 03/16/2025 | 16:08:42 | 69.12, -67.04 | 70.63 | 94.34 | 66 |
| 4 | 03/19/2025 | 06:45:32 | 70.13, 74.95 | 70.55 | 03/19/2025 | 06:45:56 | 70.12, 74.93 | 70.53 | 1.94 | 24 |
| 5 | 03/19/2025 | 07:36:14 | -70.04,-117.59 | 109.56 | 03/19/2025 | 07:35:25 | -70.06,-117.53 | 109.54 | 3.31 | 49 |
| 6 | 03/21/2025 | 22:11:42 | -70.25, 23.23 | 110.38 | 03/21/2025 | 22:12:53 | -70.23, 23.33 | 110.42 | 4.35 | 71 |
| 7 | 03/21/2025 | 23:02:25 | 70.09,-169.22 | 69.45 | 03/21/2025 | 23:02:20 | 70.12,-169.18 | 69.47 | 3.12 | 5 |
| 8 | 03/21/2025 | 23:53:04 | -69.88, -1.59 | 110.79 | 03/21/2025 | 23:51:50 | -69.95, -1.78 | 110.71 | 10.22 | 74 |
| 9 | 03/24/2025 | 14:28:33 | -70.16, 139.14 | 111.53 | 03/24/2025 | 14:29:16 | -70.17, 139.16 | 111.53 | 1.47 | 43 |
| 10 | 03/24/2025 | 15:19:17 | 70.07, -53.41 | 68.36 | 03/24/2025 | 15:18:43 | 70.06, -53.36 | 68.35 | 2.22 | 34 |
| 11 | 03/27/2025 | 05:54:53 | 70.74, 86.69 | 68.04 | 03/27/2025 | 05:56:02 | 70.61, 88.07 | 67.85 | 52.99 | 69 |
| 12 | 03/27/2025 | 06:45:25 | -70.10,-104.98 | 112.66 | 03/27/2025 | 06:45:39 | -70.12,-105.01 | 112.64 | 2.81 | 14 |
| 13 | 03/27/2025 | 07:36:09 | 70.01, 62.46 | 67.24 | 03/27/2025 | 07:35:06 | 70.00, 62.47 | 67.24 | 0.85 | 63 |
| 14 | 03/29/2025 | 22:11:35 | 70.17,-156.63 | 66.38 | 03/29/2025 | 22:12:31 | 70.17,-156.67 | 66.38 | 1.40 | 56 |
| 15 | 03/29/2025 | 23:02:17 | -70.04, 10.87 | 113.76 | 03/29/2025 | 23:02:01 | -70.06, 10.81 | 113.74 | 2.87 | 16 |
| 16 | 03/29/2025 | 23:52:48 | 69.27, 179.31 | 65.43 | 03/29/2025 | 23:51:40 | 69.28, 177.39 | 65.50 | 75.62 | 68 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/16/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/16/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9