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: 3/23/2025
| 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 | 03/24/2025 | 14:28:33 | -70.19, 139.10 | 111.50 | 03/24/2025 | 14:29:26 | -70.16, 139.10 | 111.54 | 3.43 | 53 |
| 2 | 03/24/2025 | 15:19:16 | 70.03, -53.36 | 68.33 | 03/24/2025 | 15:18:53 | 70.06, -53.41 | 68.35 | 3.05 | 23 |
| 3 | 03/24/2025 | 16:09:44 | -69.19, 115.19 | 112.57 | 03/24/2025 | 16:08:36 | -69.23, 113.10 | 112.45 | 82.33 | 68 |
| 4 | 03/27/2025 | 06:45:25 | -70.15,-105.06 | 112.60 | 03/27/2025 | 06:45:55 | -70.14,-105.05 | 112.61 | 0.41 | 30 |
| 5 | 03/27/2025 | 07:36:09 | 70.05, 62.40 | 67.29 | 03/27/2025 | 07:35:22 | 70.04, 62.44 | 67.28 | 2.35 | 47 |
| 6 | 03/29/2025 | 22:11:39 | 70.45,-157.07 | 66.68 | 03/29/2025 | 22:12:50 | 70.37,-156.47 | 66.58 | 23.81 | 71 |
| 7 | 03/29/2025 | 23:02:17 | -70.12, 10.76 | 113.68 | 03/29/2025 | 23:02:23 | -70.10, 10.77 | 113.70 | 2.61 | 6 |
| 8 | 03/29/2025 | 23:53:00 | 69.98, 178.28 | 66.17 | 03/29/2025 | 23:51:50 | 69.99, 178.26 | 66.18 | 1.09 | 70 |
| 9 | 04/01/2025 | 14:28:25 | 70.19, -40.88 | 65.37 | 04/01/2025 | 14:29:18 | 70.19, -40.84 | 65.36 | 1.54 | 53 |
| 10 | 04/01/2025 | 15:19:07 | -70.07, 126.62 | 114.77 | 04/01/2025 | 15:18:48 | -70.09, 126.64 | 114.76 | 1.96 | 19 |
| 11 | 04/01/2025 | 16:09:36 | 69.19, -64.79 | 64.30 | 04/01/2025 | 16:08:28 | 69.25, -66.85 | 64.44 | 81.66 | 68 |
| 12 | 04/04/2025 | 06:45:16 | 70.17, 74.94 | 64.31 | 04/04/2025 | 06:45:43 | 70.15, 74.99 | 64.29 | 2.61 | 27 |
| 13 | 04/04/2025 | 07:35:58 | -70.04,-117.55 | 115.84 | 04/04/2025 | 07:35:13 | -70.05,-117.52 | 115.83 | 1.31 | 45 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/23/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/23/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9