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: 5/19/2025
| 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 | 05/19/2025 | 14:28:23 | 70.19, -40.91 | 50.21 | 05/19/2025 | 14:29:03 | 70.20, -40.88 | 50.21 | 1.05 | 40 |
| 2 | 05/19/2025 | 15:19:04 | -70.06, 126.61 | 129.94 | 05/19/2025 | 15:18:33 | -70.08, 126.58 | 129.92 | 2.19 | 31 |
| 3 | 05/22/2025 | 05:54:46 | -70.85, -93.52 | 129.64 | 05/22/2025 | 05:55:55 | -70.73, -91.87 | 129.81 | 61.97 | 69 |
| 4 | 05/22/2025 | 06:45:19 | 70.15, 74.92 | 49.62 | 05/22/2025 | 06:45:31 | 70.13, 74.91 | 49.61 | 1.41 | 12 |
| 5 | 05/22/2025 | 07:36:00 | -70.02,-117.56 | 130.52 | 05/22/2025 | 07:35:01 | -70.02,-117.62 | 130.52 | 2.34 | 59 |
| 6 | 05/24/2025 | 22:11:31 | -70.19, 23.31 | 130.83 | 05/24/2025 | 22:12:32 | -70.21, 23.25 | 130.82 | 3.31 | 61 |
| 7 | 05/24/2025 | 23:02:16 | 70.11,-169.26 | 49.08 | 05/24/2025 | 23:01:59 | 70.11,-169.25 | 49.08 | 0.46 | 17 |
| 8 | 05/24/2025 | 23:52:47 | -69.45, -0.97 | 131.61 | 05/24/2025 | 23:51:38 | -69.50, -2.46 | 131.52 | 58.39 | 69 |
| 9 | 05/27/2025 | 14:28:28 | -70.16, 139.12 | 131.32 | 05/27/2025 | 14:29:00 | -70.16, 139.06 | 131.32 | 2.07 | 32 |
| 10 | 05/27/2025 | 15:19:13 | 70.08, -53.46 | 48.59 | 05/27/2025 | 15:18:27 | 70.05, -53.44 | 48.57 | 2.54 | 46 |
| 11 | 05/30/2025 | 05:54:45 | 70.31, 87.31 | 48.44 | 05/30/2025 | 05:55:56 | 70.31, 87.53 | 48.42 | 8.07 | 71 |
| 12 | 05/30/2025 | 06:45:25 | -70.13,-105.09 | 131.76 | 05/30/2025 | 06:45:27 | -70.15,-105.08 | 131.75 | 1.61 | 2 |
| 13 | 05/30/2025 | 07:36:08 | 69.95, 62.50 | 48.05 | 05/30/2025 | 07:34:55 | 69.98, 62.34 | 48.09 | 7.39 | 73 |
| 14 | 06/01/2025 | 22:11:39 | 70.19,-156.74 | 47.94 | 06/01/2025 | 22:12:23 | 70.22,-156.73 | 47.96 | 2.69 | 44 |
| 15 | 06/01/2025 | 23:02:21 | -70.12, 10.70 | 132.14 | 06/01/2025 | 23:01:53 | -70.11, 10.75 | 132.15 | 2.17 | 28 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/19/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/19/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9