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: 3/14/2025
| 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 | 70.17, -40.89 | 71.66 | 03/16/2025 | 14:29:30 | 70.18, -40.88 | 71.66 | 0.91 | 51 |
| 2 | 03/16/2025 | 15:19:21 | -70.08, 126.57 | 108.45 | 03/16/2025 | 15:19:00 | -70.06, 126.59 | 108.47 | 2.27 | 21 |
| 3 | 03/16/2025 | 16:09:48 | 69.06, -64.64 | 70.47 | 03/16/2025 | 16:08:42 | 69.13, -67.03 | 70.64 | 94.81 | 66 |
| 4 | 03/19/2025 | 06:45:31 | 70.11, 74.97 | 70.54 | 03/19/2025 | 06:45:55 | 70.12, 74.94 | 70.54 | 1.65 | 24 |
| 5 | 03/19/2025 | 07:36:13 | -70.02,-117.56 | 109.58 | 03/19/2025 | 07:35:25 | -70.01,-117.59 | 109.58 | 1.16 | 48 |
| 6 | 03/21/2025 | 22:11:41 | -70.22, 23.27 | 110.41 | 03/21/2025 | 22:12:52 | -70.23, 23.35 | 110.41 | 3.06 | 71 |
| 7 | 03/21/2025 | 23:02:24 | 70.07,-169.19 | 69.43 | 03/21/2025 | 23:02:20 | 70.06,-169.25 | 69.42 | 2.41 | 4 |
| 8 | 03/21/2025 | 23:53:04 | -69.86, -1.56 | 110.81 | 03/21/2025 | 23:51:51 | -69.90, -1.85 | 110.75 | 11.93 | 73 |
| 9 | 03/24/2025 | 14:28:34 | -70.19, 139.10 | 111.50 | 03/24/2025 | 14:29:16 | -70.18, 139.16 | 111.53 | 2.85 | 42 |
| 10 | 03/24/2025 | 15:19:17 | 70.04, -53.37 | 68.34 | 03/24/2025 | 15:18:43 | 70.06, -53.36 | 68.35 | 1.85 | 34 |
| 11 | 03/27/2025 | 05:54:53 | 70.71, 86.74 | 68.00 | 03/27/2025 | 05:56:02 | 70.61, 88.07 | 67.85 | 50.34 | 69 |
| 12 | 03/27/2025 | 06:45:26 | -70.11,-105.01 | 112.64 | 03/27/2025 | 06:45:39 | -70.11,-105.02 | 112.64 | 0.11 | 13 |
| 13 | 03/27/2025 | 07:36:09 | 69.98, 62.51 | 67.21 | 03/27/2025 | 07:35:06 | 70.00, 62.46 | 67.24 | 2.75 | 63 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/14/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/14/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9