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: 4/22/2025
| 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 | 04/24/2025 | 06:19:25 | -70.43, -99.00 | 122.60 | 04/24/2025 | 06:20:37 | -70.35, -98.58 | 122.69 | 17.65 | 72 |
| 2 | 04/24/2025 | 07:10:05 | 70.13, 68.77 | 57.09 | 04/24/2025 | 07:10:06 | 70.14, 68.76 | 57.10 | 1.32 | 1 |
| 3 | 04/24/2025 | 08:00:47 | -70.02,-123.74 | 123.05 | 04/24/2025 | 07:59:36 | -70.02,-123.78 | 123.04 | 1.37 | 71 |
| 4 | 04/26/2025 | 22:36:11 | -70.22, 17.11 | 123.68 | 04/26/2025 | 22:37:04 | -70.21, 17.10 | 123.70 | 1.40 | 53 |
| 5 | 04/26/2025 | 23:26:54 | 70.09,-175.37 | 56.17 | 04/26/2025 | 23:26:31 | 70.11,-175.40 | 56.19 | 2.30 | 23 |
| 6 | 04/27/2025 | 00:17:22 | -69.23, -6.80 | 124.72 | 04/27/2025 | 00:16:14 | -69.27, -8.90 | 124.63 | 82.77 | 68 |
| 7 | 04/29/2025 | 14:53:00 | -70.19, 132.95 | 124.56 | 04/29/2025 | 14:53:28 | -70.20, 132.98 | 124.55 | 1.26 | 28 |
| 8 | 04/29/2025 | 15:43:43 | 70.06, -59.53 | 55.30 | 04/29/2025 | 15:42:55 | 70.09, -59.53 | 55.33 | 3.71 | 48 |
| 9 | 05/02/2025 | 06:19:09 | 70.39, 81.12 | 54.85 | 05/02/2025 | 06:20:21 | 70.31, 81.41 | 54.76 | 13.81 | 72 |
| 10 | 05/02/2025 | 07:09:49 | -70.17,-111.22 | 125.39 | 05/02/2025 | 07:09:52 | -70.15,-111.20 | 125.42 | 2.75 | 3 |
| 11 | 05/02/2025 | 08:00:32 | 70.03, 56.30 | 54.46 | 05/02/2025 | 07:59:19 | 70.03, 56.29 | 54.47 | 0.24 | 73 |
| 12 | 05/04/2025 | 22:35:54 | 70.22,-162.82 | 53.90 | 05/04/2025 | 22:36:44 | 70.22,-162.82 | 53.89 | 0.36 | 50 |
| 13 | 05/04/2025 | 23:26:36 | -70.10, 4.67 | 126.24 | 05/04/2025 | 23:26:14 | -70.11, 4.66 | 126.23 | 0.93 | 22 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/22/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/22/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8