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: 5/29/2025
| 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 | 05/30/2025 | 05:54:46 | 70.37, 87.23 | 48.49 | 05/30/2025 | 05:55:58 | 70.31, 87.52 | 48.42 | 12.49 | 72 |
| 2 | 05/30/2025 | 06:45:25 | -70.15,-105.11 | 131.75 | 05/30/2025 | 06:45:29 | -70.14,-105.10 | 131.76 | 0.78 | 4 |
| 3 | 05/30/2025 | 07:36:09 | 70.00, 62.42 | 48.10 | 05/30/2025 | 07:34:57 | 69.99, 62.33 | 48.10 | 3.63 | 72 |
| 4 | 06/01/2025 | 22:11:41 | 70.24,-156.81 | 47.99 | 06/01/2025 | 22:12:27 | 70.22,-156.74 | 47.96 | 3.38 | 46 |
| 5 | 06/01/2025 | 23:02:22 | -70.12, 10.69 | 132.14 | 06/01/2025 | 23:01:57 | -70.10, 10.73 | 132.16 | 2.58 | 25 |
| 6 | 06/04/2025 | 13:38:08 | -71.09, 150.26 | 131.44 | 06/04/2025 | 13:39:15 | -70.96, 152.62 | 131.63 | 86.31 | 67 |
| 7 | 06/04/2025 | 14:28:37 | 70.16, -40.93 | 47.59 | 06/04/2025 | 14:28:55 | 70.15, -40.95 | 47.58 | 1.35 | 18 |
| 8 | 06/04/2025 | 15:19:18 | -70.04, 126.57 | 132.54 | 06/04/2025 | 15:18:25 | -70.04, 126.52 | 132.54 | 1.87 | 53 |
| 9 | 06/07/2025 | 05:54:48 | -70.24, -92.59 | 132.61 | 06/07/2025 | 05:55:54 | -70.23, -92.60 | 132.62 | 0.71 | 66 |
| 10 | 06/07/2025 | 06:45:33 | 70.15, 74.85 | 47.30 | 06/07/2025 | 06:45:21 | 70.12, 74.89 | 47.28 | 3.15 | 12 |
| 11 | 06/07/2025 | 07:36:07 | -69.66,-117.09 | 133.21 | 06/07/2025 | 07:34:56 | -69.74,-118.01 | 133.10 | 36.49 | 71 |
| 12 | 06/09/2025 | 22:11:44 | -70.17, 23.27 | 132.90 | 06/09/2025 | 22:12:21 | -70.18, 23.22 | 132.89 | 2.37 | 37 |
| 13 | 06/09/2025 | 23:02:29 | 70.08,-169.29 | 47.01 | 06/09/2025 | 23:01:48 | 70.07,-169.29 | 47.00 | 1.26 | 41 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/29/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/29/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9