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: 4/5/2025
| 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 | 04/05/2025 | 14:03:09 | -70.82, 144.48 | 115.51 | 04/05/2025 | 14:04:18 | -70.73, 146.07 | 115.66 | 59.27 | 69 |
| 2 | 04/05/2025 | 14:53:42 | 70.16, -47.15 | 63.79 | 04/05/2025 | 14:53:54 | 70.13, -47.15 | 63.76 | 2.38 | 12 |
| 3 | 04/05/2025 | 15:44:24 | -70.04, 120.33 | 116.35 | 04/05/2025 | 15:43:24 | -70.02, 120.32 | 116.37 | 2.86 | 60 |
| 4 | 04/08/2025 | 06:19:49 | -70.22, -98.77 | 117.15 | 04/08/2025 | 06:20:54 | -70.25, -98.76 | 117.13 | 3.43 | 65 |
| 5 | 04/08/2025 | 07:10:33 | 70.13, 68.66 | 62.75 | 04/08/2025 | 07:10:21 | 70.14, 68.74 | 62.76 | 2.97 | 12 |
| 6 | 04/08/2025 | 08:01:08 | -69.65,-123.29 | 117.77 | 04/08/2025 | 07:59:57 | -69.70,-124.25 | 117.68 | 37.39 | 71 |
| 7 | 04/10/2025 | 22:36:40 | -70.20, 17.03 | 118.16 | 04/10/2025 | 22:37:21 | -70.21, 17.07 | 118.16 | 1.76 | 41 |
| 8 | 04/10/2025 | 23:27:23 | 70.07,-175.46 | 61.69 | 04/10/2025 | 23:26:48 | 70.10,-175.43 | 61.72 | 3.25 | 35 |
| 9 | 04/13/2025 | 14:02:59 | 70.91, -35.63 | 61.61 | 04/13/2025 | 14:04:07 | 70.78, -33.82 | 61.43 | 67.55 | 68 |
| 10 | 04/13/2025 | 14:53:29 | -70.15, 132.89 | 119.19 | 04/13/2025 | 14:53:46 | -70.18, 132.92 | 119.17 | 2.81 | 17 |
| 11 | 04/13/2025 | 15:44:12 | 70.03, -59.60 | 60.67 | 04/13/2025 | 15:43:14 | 70.01, -59.67 | 60.66 | 3.23 | 58 |
| 12 | 04/16/2025 | 06:19:37 | 70.25, 81.22 | 59.96 | 04/16/2025 | 06:20:41 | 70.26, 81.30 | 59.96 | 3.14 | 64 |
| 13 | 04/16/2025 | 07:10:19 | -70.12,-111.26 | 120.19 | 04/16/2025 | 07:10:12 | -70.10,-111.30 | 120.21 | 2.81 | 7 |
| 14 | 04/16/2025 | 08:00:55 | 69.62, 56.79 | 59.29 | 04/16/2025 | 07:59:44 | 69.71, 55.80 | 59.40 | 39.33 | 71 |
| 15 | 04/18/2025 | 22:36:26 | 70.18,-162.88 | 58.95 | 04/18/2025 | 22:37:06 | 70.18,-162.92 | 58.95 | 1.64 | 40 |
| 16 | 04/18/2025 | 23:27:09 | -70.10, 4.56 | 121.15 | 04/18/2025 | 23:26:36 | -70.08, 4.57 | 121.17 | 2.38 | 33 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/5/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/05/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8