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: 3/11/2025
| 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 | 03/11/2025 | 06:45:33 | -70.14,-105.07 | 106.26 | 03/11/2025 | 06:46:05 | -70.17,-105.03 | 106.25 | 2.94 | 32 |
| 2 | 03/11/2025 | 07:36:17 | 70.02, 62.43 | 73.60 | 03/11/2025 | 07:35:33 | 70.01, 62.39 | 73.60 | 1.71 | 44 |
| 3 | 03/13/2025 | 22:11:50 | 70.45,-157.09 | 73.02 | 03/13/2025 | 22:13:01 | 70.36,-156.51 | 72.89 | 24.25 | 71 |
| 4 | 03/13/2025 | 23:02:27 | -70.10, 10.77 | 107.37 | 03/13/2025 | 23:02:34 | -70.08, 10.73 | 107.39 | 2.81 | 7 |
| 5 | 03/13/2025 | 23:53:11 | 69.98, 178.26 | 72.50 | 03/13/2025 | 23:52:01 | 69.97, 178.22 | 72.50 | 1.60 | 70 |
| 6 | 03/16/2025 | 14:28:39 | 70.16, -40.87 | 71.65 | 03/16/2025 | 14:29:31 | 70.17, -40.89 | 71.65 | 1.34 | 52 |
| 7 | 03/16/2025 | 15:19:21 | -70.07, 126.59 | 108.47 | 03/16/2025 | 15:19:01 | -70.06, 126.59 | 108.47 | 0.72 | 20 |
| 8 | 03/16/2025 | 16:09:49 | 69.10, -64.70 | 70.52 | 03/16/2025 | 16:08:42 | 69.18, -66.97 | 70.68 | 90.09 | 67 |
| 9 | 03/19/2025 | 06:45:32 | 70.15, 74.92 | 70.57 | 03/19/2025 | 06:45:56 | 70.16, 74.99 | 70.58 | 3.20 | 24 |
| 10 | 03/19/2025 | 07:36:14 | -70.04,-117.60 | 109.56 | 03/19/2025 | 07:35:26 | -70.06,-117.53 | 109.54 | 3.09 | 48 |
| 11 | 03/21/2025 | 22:11:43 | -70.29, 23.16 | 110.33 | 03/21/2025 | 22:12:55 | -70.23, 23.33 | 110.41 | 9.10 | 72 |
| 12 | 03/21/2025 | 23:02:25 | 70.09,-169.22 | 69.45 | 03/21/2025 | 23:02:22 | 70.12,-169.18 | 69.47 | 3.34 | 3 |
| 13 | 03/21/2025 | 23:53:06 | -69.93, -1.66 | 110.74 | 03/21/2025 | 23:51:53 | -69.96, -1.78 | 110.70 | 5.57 | 73 |
| 14 | 03/24/2025 | 14:28:34 | -70.13, 139.18 | 111.56 | 03/24/2025 | 14:29:21 | -70.15, 139.11 | 111.55 | 3.14 | 47 |
| 15 | 03/24/2025 | 15:19:18 | 70.04, -53.37 | 68.34 | 03/24/2025 | 15:18:48 | 70.03, -53.41 | 68.33 | 2.07 | 30 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/11/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/11/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9