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: 1/29/2025
| 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 | 01/30/2025 | 06:45:10 | 70.17, 75.06 | 87.77 | 01/30/2025 | 06:46:06 | 70.15, 75.01 | 87.75 | 2.65 | 56 |
| 2 | 01/30/2025 | 07:35:51 | -70.06,-117.45 | 92.36 | 01/30/2025 | 07:35:36 | -70.04,-117.52 | 92.38 | 3.45 | 15 |
| 3 | 01/30/2025 | 08:26:22 | 69.23, 51.07 | 86.77 | 01/30/2025 | 08:25:14 | 69.33, 49.15 | 86.95 | 76.07 | 68 |
| 4 | 02/01/2025 | 23:01:55 | 70.14,-169.09 | 86.99 | 02/01/2025 | 23:02:30 | 70.14,-169.11 | 86.99 | 1.07 | 35 |
| 5 | 02/01/2025 | 23:52:36 | -70.02, -1.59 | 93.15 | 02/01/2025 | 23:52:00 | -70.03, -1.63 | 93.14 | 1.90 | 36 |
| 6 | 02/04/2025 | 14:28:09 | -70.88, 138.23 | 93.01 | 02/04/2025 | 14:29:17 | -70.80, 140.11 | 93.18 | 69.29 | 68 |
| 7 | 02/04/2025 | 15:18:41 | 70.12, -53.26 | 86.18 | 02/04/2025 | 15:18:54 | 70.14, -53.22 | 86.19 | 2.63 | 13 |
| 8 | 02/04/2025 | 16:09:22 | -70.00, 114.24 | 93.96 | 02/04/2025 | 16:08:24 | -70.03, 114.26 | 93.93 | 2.85 | 58 |
| 9 | 02/07/2025 | 06:44:42 | -70.19,-104.87 | 94.56 | 02/07/2025 | 06:45:51 | -70.20,-104.87 | 94.57 | 0.82 | 69 |
| 10 | 02/07/2025 | 07:35:26 | 70.06, 62.64 | 85.30 | 02/07/2025 | 07:35:18 | 70.08, 62.61 | 85.32 | 2.42 | 8 |
| 11 | 02/07/2025 | 08:26:03 | -69.74,-129.55 | 95.07 | 02/07/2025 | 08:24:51 | -69.81,-130.14 | 94.96 | 24.11 | 72 |
| 12 | 02/09/2025 | 23:01:27 | -70.15, 11.00 | 95.46 | 02/09/2025 | 23:02:14 | -70.15, 10.97 | 95.47 | 1.44 | 47 |
| 13 | 02/09/2025 | 23:52:11 | 70.02, 178.50 | 84.40 | 02/09/2025 | 23:51:41 | 70.03, 178.45 | 84.41 | 2.48 | 30 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 1/29/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 01/29/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9