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: 1/31/2025
| 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 | 02/01/2025 | 23:02:09 | 70.12,-169.13 | 86.97 | 02/01/2025 | 23:02:36 | 70.15,-169.13 | 86.99 | 2.80 | 27 |
| 2 | 02/01/2025 | 23:52:50 | -70.01, -1.63 | 93.16 | 02/01/2025 | 23:52:06 | -70.04, -1.65 | 93.13 | 3.46 | 44 |
| 3 | 02/04/2025 | 14:28:26 | -70.43, 138.85 | 93.49 | 02/04/2025 | 14:29:37 | -70.34, 139.37 | 93.62 | 22.05 | 71 |
| 4 | 02/04/2025 | 15:19:07 | 70.12, -53.37 | 86.18 | 02/04/2025 | 15:19:06 | 70.12, -53.30 | 86.17 | 2.85 | 1 |
| 5 | 02/04/2025 | 16:09:48 | -70.01, 114.12 | 93.95 | 02/04/2025 | 16:08:36 | -70.01, 114.19 | 93.94 | 2.34 | 72 |
| 6 | 02/07/2025 | 06:45:18 | -70.14,-104.94 | 94.62 | 02/07/2025 | 06:46:09 | -70.15,-105.01 | 94.61 | 3.38 | 51 |
| 7 | 02/07/2025 | 07:36:03 | 70.04, 62.51 | 85.27 | 02/07/2025 | 07:35:36 | 70.04, 62.47 | 85.27 | 1.49 | 27 |
| 8 | 02/07/2025 | 08:26:28 | -69.08,-128.77 | 95.75 | 02/07/2025 | 08:25:21 | -69.11,-131.15 | 95.61 | 94.41 | 67 |
| 9 | 02/09/2025 | 22:11:48 | 70.98,-157.86 | 85.44 | 02/09/2025 | 22:12:55 | 70.90,-155.65 | 85.26 | 81.01 | 67 |
| 10 | 02/09/2025 | 23:02:15 | -70.13, 10.83 | 95.48 | 02/09/2025 | 23:02:37 | -70.14, 10.86 | 95.47 | 1.87 | 22 |
| 11 | 02/09/2025 | 23:53:00 | 70.04, 178.27 | 84.42 | 02/09/2025 | 23:52:04 | 70.03, 178.34 | 84.41 | 3.00 | 56 |
| 12 | 02/12/2025 | 14:28:29 | 70.17, -40.79 | 83.69 | 02/12/2025 | 14:29:35 | 70.19, -40.82 | 83.70 | 2.98 | 66 |
| 13 | 02/12/2025 | 15:19:10 | -70.10, 126.64 | 96.40 | 02/12/2025 | 15:19:04 | -70.09, 126.67 | 96.41 | 1.53 | 6 |
| 14 | 02/12/2025 | 16:09:48 | 69.64, -65.37 | 83.11 | 02/12/2025 | 16:08:36 | 69.70, -66.23 | 83.21 | 33.91 | 72 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/31/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/31/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9