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: 4/16/2025
| 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 | 04/16/2025 | 06:19:37 | 70.24, 81.23 | 59.95 | 04/16/2025 | 06:20:48 | 70.23, 81.22 | 59.93 | 0.88 | 71 |
| 2 | 04/16/2025 | 07:10:19 | -70.12,-111.27 | 120.19 | 04/16/2025 | 07:10:18 | -70.11,-111.31 | 120.20 | 1.82 | 1 |
| 3 | 04/16/2025 | 08:00:59 | 69.83, 56.48 | 59.50 | 04/16/2025 | 07:59:47 | 69.90, 56.04 | 59.59 | 18.95 | 72 |
| 4 | 04/18/2025 | 22:36:27 | 70.22,-162.94 | 58.99 | 04/18/2025 | 22:37:15 | 70.19,-162.95 | 58.96 | 2.42 | 48 |
| 5 | 04/18/2025 | 23:27:09 | -70.10, 4.56 | 121.15 | 04/18/2025 | 23:26:45 | -70.08, 4.52 | 121.17 | 2.52 | 24 |
| 6 | 04/21/2025 | 14:53:16 | 70.15, -47.05 | 58.00 | 04/21/2025 | 14:53:41 | 70.16, -47.10 | 58.01 | 2.39 | 25 |
| 7 | 04/21/2025 | 15:43:58 | -70.03, 120.45 | 122.14 | 04/21/2025 | 15:43:11 | -70.05, 120.37 | 122.12 | 3.65 | 47 |
| 8 | 04/24/2025 | 06:19:26 | -70.43, -99.02 | 122.59 | 04/24/2025 | 06:20:37 | -70.36, -98.57 | 122.69 | 18.66 | 71 |
| 9 | 04/24/2025 | 07:10:06 | 70.15, 68.74 | 57.10 | 04/24/2025 | 07:10:06 | 70.14, 68.76 | 57.09 | 1.16 | 0 |
| 10 | 04/24/2025 | 08:00:48 | -70.03,-123.76 | 123.04 | 04/24/2025 | 07:59:36 | -70.03,-123.77 | 123.03 | 0.36 | 72 |
| 11 | 04/26/2025 | 22:36:11 | -70.23, 17.09 | 123.67 | 04/26/2025 | 22:37:02 | -70.24, 17.15 | 123.67 | 2.33 | 51 |
| 12 | 04/26/2025 | 23:26:54 | 70.11,-175.40 | 56.19 | 04/26/2025 | 23:26:29 | 70.13,-175.37 | 56.21 | 2.49 | 25 |
| 13 | 04/27/2025 | 00:17:21 | -69.19, -6.75 | 124.77 | 04/27/2025 | 00:16:14 | -69.19, -9.01 | 124.71 | 89.30 | 67 |
| 14 | 04/29/2025 | 14:53:00 | -70.20, 132.93 | 124.54 | 04/29/2025 | 14:53:26 | -70.18, 132.96 | 124.57 | 3.00 | 26 |
| 15 | 04/29/2025 | 15:43:43 | 70.08, -59.56 | 55.32 | 04/29/2025 | 15:42:53 | 70.06, -59.55 | 55.31 | 1.43 | 50 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/16/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/16/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8