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: 4/29/2025
| 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 | 04/29/2025 | 14:02:53 | 71.06, -35.86 | 56.36 | 04/29/2025 | 14:04:00 | 70.92, -33.64 | 56.17 | 82.08 | 67 |
| 2 | 04/29/2025 | 14:53:20 | -70.16, 132.91 | 124.59 | 04/29/2025 | 14:53:42 | -70.14, 132.85 | 124.61 | 3.06 | 22 |
| 3 | 04/29/2025 | 15:44:04 | 70.06, -59.63 | 55.30 | 04/29/2025 | 15:43:09 | 70.04, -59.65 | 55.29 | 2.02 | 55 |
| 4 | 05/02/2025 | 06:19:36 | 70.23, 81.24 | 54.68 | 05/02/2025 | 06:20:42 | 70.21, 81.18 | 54.66 | 3.45 | 66 |
| 5 | 05/02/2025 | 07:10:18 | -70.12,-111.27 | 125.44 | 05/02/2025 | 07:10:11 | -70.15,-111.27 | 125.41 | 3.46 | 7 |
| 6 | 05/02/2025 | 08:00:55 | 69.64, 56.75 | 54.06 | 05/02/2025 | 07:59:44 | 69.71, 55.76 | 54.16 | 38.69 | 71 |
| 7 | 05/04/2025 | 22:36:34 | 70.19,-162.95 | 53.87 | 05/04/2025 | 22:37:11 | 70.17,-163.00 | 53.84 | 2.94 | 37 |
| 8 | 05/04/2025 | 23:27:15 | -70.08, 4.54 | 126.26 | 05/04/2025 | 23:26:40 | -70.06, 4.48 | 126.28 | 3.21 | 35 |
| 9 | 05/07/2025 | 14:02:55 | -70.69, 144.71 | 126.36 | 05/07/2025 | 14:04:05 | -70.59, 145.85 | 126.49 | 43.33 | 70 |
| 10 | 05/07/2025 | 14:53:31 | 70.17, -47.15 | 53.09 | 05/07/2025 | 14:53:38 | 70.16, -47.14 | 53.08 | 1.28 | 7 |
| 11 | 05/07/2025 | 15:44:13 | -70.06, 120.33 | 127.03 | 05/07/2025 | 15:43:08 | -70.05, 120.34 | 127.04 | 1.24 | 65 |
| 12 | 05/10/2025 | 06:19:44 | -70.20, -98.76 | 127.58 | 05/10/2025 | 06:20:39 | -70.22, -98.82 | 127.57 | 2.58 | 55 |
| 13 | 05/10/2025 | 07:10:28 | 70.10, 68.70 | 52.31 | 05/10/2025 | 07:10:06 | 70.11, 68.67 | 52.32 | 1.52 | 22 |
| 14 | 05/10/2025 | 08:00:56 | -69.25,-122.73 | 128.57 | 05/10/2025 | 07:59:48 | -69.34,-124.75 | 128.44 | 79.71 | 68 |
| 15 | 05/12/2025 | 21:46:16 | 71.15,-151.86 | 52.74 | 05/12/2025 | 21:47:22 | 71.06,-149.30 | 52.59 | 92.49 | 66 |
| 16 | 05/12/2025 | 22:36:42 | -70.20, 17.00 | 128.26 | 05/12/2025 | 22:37:06 | -70.19, 17.02 | 128.28 | 1.90 | 24 |
| 17 | 05/12/2025 | 23:27:26 | 70.10,-175.53 | 51.63 | 05/12/2025 | 23:26:33 | 70.07,-175.49 | 51.61 | 3.23 | 53 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/29/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/29/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8