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: 4/12/2025
| 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 | 04/13/2025 | 14:03:01 | 71.01, -35.80 | 61.72 | 04/13/2025 | 14:04:08 | 70.94, -33.60 | 61.58 | 80.09 | 67 |
| 2 | 04/13/2025 | 14:53:29 | -70.15, 132.89 | 119.19 | 04/13/2025 | 14:53:50 | -70.17, 132.88 | 119.19 | 1.24 | 21 |
| 3 | 04/13/2025 | 15:44:13 | 70.07, -59.67 | 60.71 | 04/13/2025 | 15:43:17 | 70.06, -59.62 | 60.71 | 2.32 | 56 |
| 4 | 04/16/2025 | 06:19:37 | 70.24, 81.24 | 59.95 | 04/16/2025 | 06:20:48 | 70.24, 81.23 | 59.94 | 0.16 | 71 |
| 5 | 04/16/2025 | 07:10:19 | -70.12,-111.26 | 120.19 | 04/16/2025 | 07:10:18 | -70.12,-111.30 | 120.19 | 1.47 | 1 |
| 6 | 04/16/2025 | 08:01:00 | 69.88, 56.41 | 59.55 | 04/16/2025 | 07:59:47 | 69.91, 56.05 | 59.60 | 14.27 | 73 |
| 7 | 04/18/2025 | 22:36:27 | 70.21,-162.94 | 58.99 | 04/18/2025 | 22:37:15 | 70.20,-162.93 | 58.96 | 1.56 | 48 |
| 8 | 04/18/2025 | 23:27:09 | -70.09, 4.56 | 121.16 | 04/18/2025 | 23:26:45 | -70.09, 4.54 | 121.16 | 0.89 | 24 |
| 9 | 04/21/2025 | 14:53:16 | 70.15, -47.05 | 58.00 | 04/21/2025 | 14:53:41 | 70.18, -47.08 | 58.02 | 2.70 | 25 |
| 10 | 04/21/2025 | 15:43:59 | -70.08, 120.37 | 122.09 | 04/21/2025 | 15:43:11 | -70.07, 120.40 | 122.10 | 1.88 | 48 |
| 11 | 04/24/2025 | 06:19:25 | -70.44, -99.02 | 122.59 | 04/24/2025 | 06:20:36 | -70.38, -98.54 | 122.66 | 19.11 | 71 |
| 12 | 04/24/2025 | 07:10:05 | 70.16, 68.73 | 57.11 | 04/24/2025 | 07:10:05 | 70.16, 68.79 | 57.11 | 2.11 | 0 |
| 13 | 04/24/2025 | 08:00:47 | -70.03,-123.76 | 123.03 | 04/24/2025 | 07:59:35 | -70.05,-123.73 | 123.01 | 2.58 | 72 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/12/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/12/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8