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: 3/12/2025
| 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 | 03/13/2025 | 22:11:49 | 70.43,-157.06 | 73.00 | 03/13/2025 | 22:13:01 | 70.32,-156.56 | 72.86 | 22.24 | 72 |
| 2 | 03/13/2025 | 23:02:26 | -70.08, 10.80 | 107.39 | 03/13/2025 | 23:02:33 | -70.10, 10.75 | 107.38 | 2.60 | 7 |
| 3 | 03/13/2025 | 23:53:11 | 70.01, 178.21 | 72.53 | 03/13/2025 | 23:52:00 | 69.99, 178.25 | 72.52 | 2.78 | 71 |
| 4 | 03/16/2025 | 14:28:39 | 70.19, -40.92 | 71.68 | 03/16/2025 | 14:29:30 | 70.18, -40.88 | 71.66 | 2.10 | 51 |
| 5 | 03/16/2025 | 15:19:20 | -70.05, 126.62 | 108.49 | 03/16/2025 | 15:19:00 | -70.07, 126.60 | 108.47 | 2.51 | 20 |
| 6 | 03/16/2025 | 16:09:48 | 69.08, -64.67 | 70.49 | 03/16/2025 | 16:08:42 | 69.13, -67.03 | 70.64 | 93.65 | 66 |
| 7 | 03/19/2025 | 06:45:32 | 70.12, 74.96 | 70.55 | 03/19/2025 | 06:45:57 | 70.10, 74.90 | 70.52 | 3.11 | 25 |
| 8 | 03/19/2025 | 07:36:14 | -70.02,-117.57 | 109.58 | 03/19/2025 | 07:35:26 | -70.05,-117.54 | 109.55 | 3.01 | 48 |
| 9 | 03/21/2025 | 22:11:43 | -70.27, 23.20 | 110.36 | 03/21/2025 | 22:12:54 | -70.26, 23.38 | 110.38 | 6.93 | 71 |
| 10 | 03/21/2025 | 23:02:25 | 70.07,-169.18 | 69.42 | 03/21/2025 | 23:02:22 | 70.09,-169.22 | 69.45 | 3.07 | 3 |
| 11 | 03/21/2025 | 23:53:06 | -69.91, -1.62 | 110.76 | 03/21/2025 | 23:51:53 | -69.93, -1.81 | 110.73 | 7.57 | 73 |
| 12 | 03/24/2025 | 14:28:34 | -70.16, 139.13 | 111.53 | 03/24/2025 | 14:29:19 | -70.15, 139.12 | 111.55 | 1.10 | 45 |
| 13 | 03/24/2025 | 15:19:17 | 70.02, -53.34 | 68.31 | 03/24/2025 | 15:18:46 | 70.04, -53.40 | 68.33 | 2.77 | 31 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/12/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/12/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9