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: 2/20/2025
| 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 | 02/20/2025 | 14:28:35 | -70.17, 139.17 | 99.10 | 02/20/2025 | 14:29:43 | -70.17, 139.10 | 99.11 | 2.38 | 68 |
| 2 | 02/20/2025 | 15:19:20 | 70.07, -53.38 | 80.79 | 02/20/2025 | 15:19:10 | 70.07, -53.40 | 80.79 | 0.67 | 10 |
| 3 | 02/20/2025 | 16:09:56 | -69.70, 114.50 | 99.63 | 02/20/2025 | 16:08:44 | -69.74, 113.77 | 99.54 | 28.49 | 72 |
| 4 | 02/23/2025 | 06:45:31 | -70.14,-105.02 | 100.12 | 02/23/2025 | 06:46:11 | -70.12,-105.08 | 100.14 | 2.72 | 40 |
| 5 | 02/23/2025 | 07:36:16 | 70.04, 62.43 | 79.78 | 02/23/2025 | 07:35:38 | 70.02, 62.41 | 79.76 | 2.88 | 38 |
| 6 | 02/25/2025 | 22:11:52 | 70.55,-157.23 | 79.34 | 02/25/2025 | 22:13:03 | 70.46,-156.34 | 79.20 | 34.53 | 71 |
| 7 | 02/25/2025 | 23:02:27 | -70.11, 10.78 | 101.14 | 02/25/2025 | 23:02:37 | -70.13, 10.82 | 101.13 | 2.39 | 10 |
| 8 | 02/25/2025 | 23:53:11 | 69.97, 178.29 | 78.71 | 02/25/2025 | 23:52:05 | 69.97, 178.23 | 78.71 | 2.71 | 66 |
| 9 | 02/28/2025 | 14:28:40 | 70.18, -40.88 | 77.94 | 02/28/2025 | 14:29:32 | 70.19, -40.83 | 77.94 | 2.33 | 52 |
| 10 | 02/28/2025 | 15:19:21 | -70.05, 126.63 | 102.21 | 02/28/2025 | 15:19:02 | -70.09, 126.65 | 102.18 | 3.51 | 19 |
| 11 | 02/28/2025 | 16:09:50 | 69.12, -64.71 | 76.80 | 02/28/2025 | 16:08:43 | 69.20, -66.92 | 76.98 | 87.81 | 67 |
| 12 | 03/03/2025 | 06:45:35 | 70.14, 74.95 | 76.87 | 03/03/2025 | 06:45:57 | 70.15, 75.00 | 76.87 | 2.29 | 22 |
| 13 | 03/03/2025 | 07:36:16 | -70.01,-117.53 | 103.29 | 03/03/2025 | 07:35:28 | -69.99,-117.60 | 103.30 | 3.23 | 48 |
| 14 | 03/05/2025 | 22:11:45 | -70.18, 23.34 | 104.12 | 03/05/2025 | 22:12:55 | -70.17, 23.29 | 104.14 | 2.32 | 70 |
| 15 | 03/05/2025 | 23:02:29 | 70.06,-169.17 | 75.75 | 03/05/2025 | 23:02:22 | 70.05,-169.24 | 75.74 | 2.77 | 7 |
| 16 | 03/05/2025 | 23:53:07 | -69.76, -1.40 | 104.59 | 03/05/2025 | 23:51:54 | -69.84, -1.90 | 104.48 | 20.89 | 73 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/20/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/20/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9