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: 6/22/2025
| 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 | 06/23/2025 | 05:55:01 | -70.42, -92.91 | 133.03 | 06/23/2025 | 05:56:12 | -70.33, -92.34 | 133.15 | 23.34 | 71 |
| 2 | 06/23/2025 | 06:45:41 | 70.06, 74.95 | 46.59 | 06/23/2025 | 06:45:42 | 70.07, 74.92 | 46.60 | 1.61 | 1 |
| 3 | 06/23/2025 | 07:36:22 | -69.95,-117.56 | 133.52 | 06/23/2025 | 07:35:12 | -69.95,-117.60 | 133.51 | 1.83 | 70 |
| 4 | 06/25/2025 | 22:11:52 | -70.12, 23.32 | 133.28 | 06/25/2025 | 22:12:46 | -70.13, 23.25 | 133.27 | 2.86 | 54 |
| 5 | 06/25/2025 | 23:02:37 | 70.03,-169.24 | 46.63 | 06/25/2025 | 23:02:13 | 70.03,-169.25 | 46.64 | 0.53 | 24 |
| 6 | 06/25/2025 | 23:53:04 | -69.17, -0.67 | 134.26 | 06/25/2025 | 23:51:56 | -69.21, -2.74 | 134.15 | 81.86 | 68 |
| 7 | 06/28/2025 | 14:28:48 | -70.09, 139.13 | 133.19 | 06/28/2025 | 14:29:17 | -70.09, 139.07 | 133.20 | 2.32 | 29 |
| 8 | 06/28/2025 | 15:19:33 | 70.00, -53.43 | 46.72 | 06/28/2025 | 15:18:44 | 69.98, -53.44 | 46.71 | 2.54 | 49 |
| 9 | 07/01/2025 | 05:55:04 | 70.29, 87.26 | 47.19 | 07/01/2025 | 05:56:15 | 70.24, 87.53 | 47.12 | 11.99 | 71 |
| 10 | 07/01/2025 | 06:45:43 | -70.06,-105.06 | 133.06 | 07/01/2025 | 06:45:46 | -70.08,-105.06 | 133.04 | 2.44 | 3 |
| 11 | 07/01/2025 | 07:36:27 | 69.93, 62.44 | 46.81 | 07/01/2025 | 07:35:14 | 69.91, 62.35 | 46.81 | 3.88 | 73 |
| 12 | 07/03/2025 | 22:11:57 | 70.12,-156.70 | 47.22 | 07/03/2025 | 22:12:47 | 70.11,-156.78 | 47.20 | 2.96 | 50 |
| 13 | 07/03/2025 | 23:02:39 | -70.03, 10.74 | 132.87 | 07/03/2025 | 23:02:17 | -70.01, 10.72 | 132.89 | 3.21 | 22 |
| 14 | 07/06/2025 | 14:28:53 | 70.10, -40.91 | 47.46 | 07/06/2025 | 14:29:16 | 70.12, -40.87 | 47.48 | 3.13 | 23 |
| 15 | 07/06/2025 | 15:19:34 | -69.96, 126.62 | 132.68 | 07/06/2025 | 15:18:47 | -69.97, 126.55 | 132.66 | 2.90 | 47 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 6/22/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 06/22/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9