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: 3/20/2025
| 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 | 03/21/2025 | 22:11:40 | -70.20, 23.31 | 110.43 | 03/21/2025 | 22:12:52 | -70.19, 23.28 | 110.45 | 1.46 | 72 |
| 2 | 03/21/2025 | 23:02:24 | 70.09,-169.22 | 69.45 | 03/21/2025 | 23:02:19 | 70.08,-169.22 | 69.44 | 1.21 | 5 |
| 3 | 03/21/2025 | 23:53:03 | -69.84, -1.52 | 110.84 | 03/21/2025 | 23:51:50 | -69.91, -1.83 | 110.74 | 14.29 | 73 |
| 4 | 03/24/2025 | 14:28:32 | -70.13, 139.19 | 111.56 | 03/24/2025 | 14:29:15 | -70.15, 139.13 | 111.55 | 2.82 | 43 |
| 5 | 03/24/2025 | 15:19:16 | 70.03, -53.35 | 68.33 | 03/24/2025 | 15:18:42 | 70.04, -53.38 | 68.33 | 1.19 | 34 |
| 6 | 03/27/2025 | 05:54:51 | 70.67, 86.80 | 67.97 | 03/27/2025 | 05:56:01 | 70.54, 87.97 | 67.78 | 45.77 | 70 |
| 7 | 03/27/2025 | 06:45:24 | -70.09,-104.96 | 112.67 | 03/27/2025 | 06:45:37 | -70.09,-105.04 | 112.66 | 3.04 | 13 |
| 8 | 03/27/2025 | 07:36:08 | 69.99, 62.49 | 67.23 | 03/27/2025 | 07:35:04 | 69.98, 62.44 | 67.22 | 2.36 | 64 |
| 9 | 03/29/2025 | 22:11:34 | 70.18,-156.64 | 66.40 | 03/29/2025 | 22:12:27 | 70.19,-156.63 | 66.40 | 1.23 | 53 |
| 10 | 03/29/2025 | 23:02:16 | -70.06, 10.85 | 113.74 | 03/29/2025 | 23:01:57 | -70.07, 10.85 | 113.73 | 1.60 | 19 |
| 11 | 03/29/2025 | 23:52:45 | 69.18, 179.45 | 65.33 | 03/29/2025 | 23:51:38 | 69.18, 177.28 | 65.41 | 85.75 | 67 |
| 12 | 04/01/2025 | 13:37:58 | -71.14, 150.26 | 113.62 | 04/01/2025 | 13:39:04 | -71.03, 152.92 | 113.82 | 96.66 | 66 |
| 13 | 04/01/2025 | 14:28:24 | 70.13, -40.78 | 65.30 | 04/01/2025 | 14:28:45 | 70.15, -40.76 | 65.32 | 3.01 | 21 |
| 14 | 04/01/2025 | 15:19:07 | -70.06, 126.64 | 114.79 | 04/01/2025 | 15:18:15 | -70.04, 126.72 | 114.80 | 3.41 | 52 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/20/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/20/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9