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: 3/9/2025
| 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 | -70.12,-105.03 | 106.29 | 03/11/2025 | 06:46:06 | -70.14,-105.06 | 106.27 | 3.26 | 33 |
| 2 | 03/11/2025 | 07:36:18 | 70.05, 62.39 | 73.63 | 03/11/2025 | 07:35:33 | 70.04, 62.43 | 73.62 | 1.80 | 45 |
| 3 | 03/13/2025 | 22:11:49 | 70.42,-157.05 | 72.99 | 03/13/2025 | 22:13:01 | 70.34,-156.54 | 72.87 | 21.49 | 72 |
| 4 | 03/13/2025 | 23:02:27 | -70.12, 10.73 | 107.34 | 03/13/2025 | 23:02:33 | -70.12, 10.78 | 107.36 | 1.93 | 6 |
| 5 | 03/13/2025 | 23:53:11 | 70.01, 178.22 | 72.52 | 03/13/2025 | 23:52:00 | 70.01, 178.27 | 72.53 | 1.97 | 71 |
| 6 | 03/16/2025 | 14:28:39 | 70.18, -40.90 | 71.67 | 03/16/2025 | 14:29:31 | 70.16, -40.91 | 71.64 | 2.81 | 52 |
| 7 | 03/16/2025 | 15:19:20 | -70.03, 126.64 | 108.50 | 03/16/2025 | 15:19:01 | -70.05, 126.57 | 108.48 | 3.13 | 19 |
| 8 | 03/16/2025 | 16:09:49 | 69.13, -64.73 | 70.54 | 03/16/2025 | 16:08:42 | 69.16, -66.98 | 70.67 | 89.23 | 67 |
| 9 | 03/19/2025 | 06:45:32 | 70.11, 74.98 | 70.53 | 03/19/2025 | 06:45:58 | 70.11, 74.91 | 70.52 | 2.69 | 26 |
| 10 | 03/19/2025 | 07:36:14 | -70.01,-117.55 | 109.59 | 03/19/2025 | 07:35:28 | -70.00,-117.61 | 109.59 | 2.37 | 46 |
| 11 | 03/21/2025 | 22:11:44 | -70.30, 23.15 | 110.32 | 03/21/2025 | 22:12:56 | -70.24, 23.35 | 110.40 | 9.95 | 72 |
| 12 | 03/21/2025 | 23:02:26 | 70.10,-169.24 | 69.46 | 03/21/2025 | 23:02:24 | 70.07,-169.25 | 69.43 | 3.28 | 2 |
| 13 | 03/21/2025 | 23:53:07 | -69.94, -1.67 | 110.73 | 03/21/2025 | 23:51:54 | -69.97, -1.76 | 110.69 | 4.70 | 73 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/9/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/09/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9