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: 2/23/2025
| 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 | 02/23/2025 | 06:45:31 | -70.15,-105.05 | 100.10 | 02/23/2025 | 06:46:10 | -70.16,-105.03 | 100.10 | 1.30 | 39 |
| 2 | 02/23/2025 | 07:36:16 | 70.06, 62.40 | 79.79 | 02/23/2025 | 07:35:37 | 70.06, 62.47 | 79.80 | 2.63 | 39 |
| 3 | 02/25/2025 | 22:11:52 | 70.57,-157.25 | 79.36 | 02/25/2025 | 22:13:03 | 70.46,-156.34 | 79.20 | 35.80 | 71 |
| 4 | 02/25/2025 | 23:02:27 | -70.13, 10.75 | 101.12 | 02/25/2025 | 23:02:37 | -70.13, 10.81 | 101.13 | 2.38 | 10 |
| 5 | 02/25/2025 | 23:53:11 | 69.99, 178.27 | 78.72 | 02/25/2025 | 23:52:05 | 69.97, 178.23 | 78.71 | 3.20 | 66 |
| 6 | 02/28/2025 | 14:28:40 | 70.14, -40.82 | 77.90 | 02/28/2025 | 14:29:34 | 70.15, -40.89 | 77.90 | 3.13 | 54 |
| 7 | 02/28/2025 | 15:19:22 | -70.07, 126.61 | 102.20 | 02/28/2025 | 15:19:04 | -70.04, 126.58 | 102.22 | 3.13 | 18 |
| 8 | 02/28/2025 | 16:09:51 | 69.14, -64.73 | 76.81 | 02/28/2025 | 16:08:44 | 69.21, -66.90 | 76.99 | 86.32 | 67 |
| 9 | 03/03/2025 | 06:45:35 | 70.15, 74.93 | 76.88 | 03/03/2025 | 06:45:58 | 70.13, 74.97 | 76.85 | 2.51 | 23 |
| 10 | 03/03/2025 | 07:36:16 | -70.02,-117.55 | 103.28 | 03/03/2025 | 07:35:28 | -70.02,-117.55 | 103.27 | 0.40 | 48 |
| 11 | 03/05/2025 | 22:11:45 | -70.19, 23.33 | 104.11 | 03/05/2025 | 22:12:56 | -70.18, 23.29 | 104.13 | 1.52 | 71 |
| 12 | 03/05/2025 | 23:02:29 | 70.07,-169.18 | 75.75 | 03/05/2025 | 23:02:23 | 70.07,-169.22 | 75.75 | 1.74 | 6 |
| 13 | 03/05/2025 | 23:53:08 | -69.83, -1.50 | 104.52 | 03/05/2025 | 23:51:55 | -69.85, -1.90 | 104.47 | 15.51 | 73 |
| 14 | 03/08/2025 | 14:28:40 | -70.17, 139.13 | 105.18 | 03/08/2025 | 14:29:19 | -70.18, 139.20 | 105.18 | 3.05 | 39 |
| 15 | 03/08/2025 | 15:19:24 | 70.05, -53.39 | 74.69 | 03/08/2025 | 15:18:46 | 70.06, -53.33 | 74.70 | 2.70 | 38 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 2/23/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 02/23/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9