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: 3/15/2025
| 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, -40.90 | 71.65 | 2.63 | 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 | 1.84 | 20 |
| 3 | 03/16/2025 | 16:09:48 | 69.08, -64.67 | 70.49 | 03/16/2025 | 16:08:42 | 69.11, -67.04 | 70.63 | 94.44 | 66 |
| 4 | 03/19/2025 | 06:45:32 | 70.13, 74.95 | 70.55 | 03/19/2025 | 06:45:56 | 70.11, 74.92 | 70.53 | 2.51 | 24 |
| 5 | 03/19/2025 | 07:36:14 | -70.03,-117.59 | 109.57 | 03/19/2025 | 07:35:25 | -70.05,-117.53 | 109.55 | 2.93 | 49 |
| 6 | 03/21/2025 | 22:11:42 | -70.24, 23.24 | 110.39 | 03/21/2025 | 22:12:53 | -70.22, 23.33 | 110.42 | 3.99 | 71 |
| 7 | 03/21/2025 | 23:02:25 | 70.09,-169.21 | 69.44 | 03/21/2025 | 23:02:20 | 70.11,-169.19 | 69.46 | 2.35 | 5 |
| 8 | 03/21/2025 | 23:53:05 | -69.88, -1.58 | 110.79 | 03/21/2025 | 23:51:51 | -69.94, -1.79 | 110.72 | 10.48 | 74 |
| 9 | 03/24/2025 | 14:28:33 | -70.15, 139.15 | 111.54 | 03/24/2025 | 14:29:16 | -70.16, 139.15 | 111.54 | 0.95 | 43 |
| 10 | 03/24/2025 | 15:19:17 | 70.06, -53.40 | 68.35 | 03/24/2025 | 15:18:43 | 70.05, -53.37 | 68.34 | 1.82 | 34 |
| 11 | 03/27/2025 | 05:54:53 | 70.73, 86.70 | 68.02 | 03/27/2025 | 05:56:02 | 70.59, 88.05 | 67.84 | 51.67 | 69 |
| 12 | 03/27/2025 | 06:45:25 | -70.08,-104.96 | 112.67 | 03/27/2025 | 06:45:39 | -70.10,-105.03 | 112.65 | 3.51 | 14 |
| 13 | 03/27/2025 | 07:36:09 | 70.00, 62.48 | 67.23 | 03/27/2025 | 07:35:06 | 69.98, 62.44 | 67.22 | 1.86 | 63 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/15/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/15/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9