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: 4/20/2025
| 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 | 04/21/2025 | 14:53:16 | 70.17, -47.08 | 58.02 | 04/21/2025 | 14:53:41 | 70.16, -47.10 | 58.01 | 1.06 | 25 |
| 2 | 04/21/2025 | 15:43:58 | -70.05, 120.41 | 122.12 | 04/21/2025 | 15:43:11 | -70.04, 120.36 | 122.12 | 2.21 | 47 |
| 3 | 04/24/2025 | 06:19:26 | -70.46, -99.05 | 122.57 | 04/24/2025 | 06:20:37 | -70.38, -98.55 | 122.67 | 20.61 | 71 |
| 4 | 04/24/2025 | 07:10:06 | 70.16, 68.72 | 57.12 | 04/24/2025 | 07:10:06 | 70.16, 68.79 | 57.11 | 2.69 | 0 |
| 5 | 04/24/2025 | 08:00:48 | -70.05,-123.79 | 123.02 | 04/24/2025 | 07:59:36 | -70.05,-123.74 | 123.01 | 1.68 | 72 |
| 6 | 04/26/2025 | 22:36:12 | -70.25, 17.06 | 123.65 | 04/26/2025 | 22:37:04 | -70.23, 17.13 | 123.68 | 3.46 | 52 |
| 7 | 04/26/2025 | 23:26:55 | 70.12,-175.42 | 56.20 | 04/26/2025 | 23:26:31 | 70.12,-175.37 | 56.21 | 1.91 | 24 |
| 8 | 04/27/2025 | 00:17:22 | -69.21, -6.77 | 124.75 | 04/27/2025 | 00:16:15 | -69.24, -8.95 | 124.66 | 85.97 | 67 |
| 9 | 04/29/2025 | 14:52:59 | -70.16, 132.99 | 124.58 | 04/29/2025 | 14:53:28 | -70.16, 132.93 | 124.59 | 2.51 | 29 |
| 10 | 04/29/2025 | 15:43:43 | 70.08, -59.58 | 55.33 | 04/29/2025 | 15:42:54 | 70.10, -59.51 | 55.35 | 3.28 | 49 |
| 11 | 05/02/2025 | 06:19:09 | 70.42, 81.07 | 54.88 | 05/02/2025 | 06:20:19 | 70.38, 81.51 | 54.83 | 16.67 | 70 |
| 12 | 05/02/2025 | 07:09:48 | -70.14,-111.18 | 125.42 | 05/02/2025 | 07:09:51 | -70.16,-111.18 | 125.40 | 1.96 | 3 |
| 13 | 05/02/2025 | 08:00:31 | 70.01, 56.33 | 54.44 | 05/02/2025 | 07:59:18 | 70.04, 56.30 | 54.48 | 4.11 | 73 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/20/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/20/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8