Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 2/13/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 02/13/2025 | 22:37:00 | 70.19,-162.95 | 83.26 | 02/13/2025 | 22:37:45 | 70.19,-162.93 | 83.25 | 0.97 | 45 |
| 2 | 02/13/2025 | 23:27:41 | -70.08, 4.53 | 96.87 | 02/13/2025 | 23:27:15 | -70.08, 4.55 | 96.87 | 0.57 | 26 |
| 3 | 02/16/2025 | 14:03:28 | -71.11, 144.01 | 96.68 | 02/16/2025 | 14:04:34 | -70.99, 146.51 | 96.91 | 91.03 | 66 |
| 4 | 02/16/2025 | 14:53:56 | 70.12, -47.09 | 82.27 | 02/16/2025 | 14:54:15 | 70.12, -47.15 | 82.27 | 2.12 | 19 |
| 5 | 02/16/2025 | 15:44:37 | -70.01, 120.40 | 97.87 | 02/16/2025 | 15:43:45 | -70.01, 120.33 | 97.85 | 2.52 | 52 |
| 6 | 02/19/2025 | 06:20:08 | -70.21, -98.78 | 98.58 | 02/19/2025 | 06:21:16 | -70.24, -98.75 | 98.57 | 3.32 | 68 |
| 7 | 02/19/2025 | 07:10:53 | 70.12, 68.67 | 81.32 | 02/19/2025 | 07:10:43 | 70.13, 68.74 | 81.32 | 2.81 | 10 |
| 8 | 02/19/2025 | 08:01:29 | -69.74,-123.44 | 99.10 | 02/19/2025 | 08:00:17 | -69.80,-124.08 | 99.00 | 25.79 | 72 |
| 9 | 02/21/2025 | 22:37:03 | -70.16, 17.06 | 99.60 | 02/21/2025 | 22:37:44 | -70.15, 17.02 | 99.61 | 1.91 | 41 |
| 10 | 02/21/2025 | 23:27:48 | 70.07,-175.50 | 80.30 | 02/21/2025 | 23:27:10 | 70.09,-175.42 | 80.32 | 3.65 | 38 |
| 11 | 02/24/2025 | 14:03:26 | 70.67, -35.30 | 79.97 | 02/24/2025 | 14:04:36 | 70.51, -34.20 | 79.76 | 44.07 | 70 |
| 12 | 02/24/2025 | 14:53:59 | -70.12, 132.88 | 100.63 | 02/24/2025 | 14:54:11 | -70.14, 132.88 | 100.62 | 1.71 | 12 |
| 13 | 02/24/2025 | 15:44:44 | 70.04, -59.69 | 79.28 | 02/24/2025 | 15:43:38 | 70.02, -59.64 | 79.27 | 2.84 | 66 |
| 14 | 02/27/2025 | 06:20:13 | 70.17, 81.24 | 78.44 | 02/27/2025 | 06:21:08 | 70.19, 81.20 | 78.44 | 1.94 | 55 |
| 15 | 02/27/2025 | 07:10:55 | -70.10,-111.32 | 101.66 | 02/27/2025 | 07:10:38 | -70.09,-111.31 | 101.67 | 1.32 | 17 |
| 16 | 02/27/2025 | 08:01:25 | 69.22, 57.27 | 77.41 | 02/27/2025 | 08:00:17 | 69.30, 55.27 | 77.59 | 79.22 | 68 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 2/13/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 02/13/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8