Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 3/29/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 03/29/2025 | 22:11:39 | 70.49,-157.14 | 66.73 | 03/29/2025 | 22:12:49 | 70.41,-156.42 | 66.61 | 28.43 | 70 |
| 2 | 03/29/2025 | 23:02:16 | -70.12, 10.76 | 113.68 | 03/29/2025 | 23:02:22 | -70.13, 10.81 | 113.68 | 2.18 | 6 |
| 3 | 03/29/2025 | 23:52:59 | 69.98, 178.29 | 66.16 | 03/29/2025 | 23:51:50 | 69.97, 178.23 | 66.16 | 2.39 | 69 |
| 4 | 04/01/2025 | 14:28:25 | 70.18, -40.86 | 65.35 | 04/01/2025 | 14:29:20 | 70.17, -40.88 | 65.34 | 0.92 | 55 |
| 5 | 04/01/2025 | 15:19:07 | -70.06, 126.63 | 114.78 | 04/01/2025 | 15:18:50 | -70.06, 126.60 | 114.78 | 1.36 | 17 |
| 6 | 04/01/2025 | 16:09:37 | 69.23, -64.84 | 64.34 | 04/01/2025 | 16:08:29 | 69.29, -66.81 | 64.47 | 77.93 | 68 |
| 7 | 04/04/2025 | 06:45:16 | 70.14, 74.99 | 64.28 | 04/04/2025 | 06:45:46 | 70.15, 74.98 | 64.29 | 1.98 | 30 |
| 8 | 04/04/2025 | 07:35:58 | -70.02,-117.52 | 115.86 | 04/04/2025 | 07:35:16 | -70.04,-117.54 | 115.83 | 3.17 | 42 |
| 9 | 04/06/2025 | 22:11:30 | -70.56, 22.80 | 116.29 | 04/06/2025 | 22:12:41 | -70.41, 23.61 | 116.47 | 33.92 | 71 |
| 10 | 04/06/2025 | 23:02:07 | 70.11,-169.19 | 63.24 | 04/06/2025 | 23:02:11 | 70.13,-169.15 | 63.25 | 2.89 | 4 |
| 11 | 04/06/2025 | 23:52:49 | -69.99, -1.69 | 116.91 | 04/06/2025 | 23:51:42 | -69.97, -1.75 | 116.92 | 2.80 | 67 |
| 12 | 04/09/2025 | 14:28:13 | -70.18, 139.18 | 117.69 | 04/09/2025 | 14:29:08 | -70.18, 139.16 | 117.70 | 0.78 | 55 |
| 13 | 04/09/2025 | 15:18:56 | 70.05, -53.31 | 62.17 | 04/09/2025 | 15:18:35 | 70.06, -53.36 | 62.18 | 1.90 | 21 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/29/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/29/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9