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: 3/28/2025
| 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 | 70.47,-157.09 | 66.70 | 03/29/2025 | 22:12:50 | 70.39,-156.45 | 66.59 | 25.41 | 71 |
| 2 | 03/29/2025 | 23:02:16 | -70.09, 10.80 | 113.71 | 03/29/2025 | 23:02:23 | -70.11, 10.78 | 113.70 | 1.99 | 7 |
| 3 | 03/29/2025 | 23:53:00 | 70.00, 178.26 | 66.18 | 03/29/2025 | 23:51:50 | 70.00, 178.28 | 66.19 | 0.88 | 70 |
| 4 | 04/01/2025 | 14:28:26 | 70.20, -40.90 | 65.38 | 04/01/2025 | 14:29:20 | 70.20, -40.84 | 65.36 | 2.21 | 54 |
| 5 | 04/01/2025 | 15:19:08 | -70.09, 126.59 | 114.76 | 04/01/2025 | 15:18:50 | -70.09, 126.63 | 114.76 | 1.60 | 18 |
| 6 | 04/01/2025 | 16:09:37 | 69.20, -64.80 | 64.32 | 04/01/2025 | 16:08:30 | 69.26, -66.85 | 64.44 | 80.96 | 67 |
| 7 | 04/04/2025 | 06:45:16 | 70.17, 74.94 | 64.31 | 04/04/2025 | 06:45:45 | 70.16, 75.00 | 64.30 | 2.51 | 29 |
| 8 | 04/04/2025 | 07:35:58 | -70.05,-117.57 | 115.83 | 04/04/2025 | 07:35:15 | -70.06,-117.52 | 115.82 | 2.01 | 43 |
| 9 | 04/06/2025 | 22:11:29 | -70.54, 22.82 | 116.30 | 04/06/2025 | 22:12:40 | -70.41, 23.60 | 116.47 | 32.75 | 71 |
| 10 | 04/06/2025 | 23:02:06 | 70.10,-169.17 | 63.22 | 04/06/2025 | 23:02:10 | 70.13,-169.16 | 63.25 | 2.81 | 4 |
| 11 | 04/06/2025 | 23:52:49 | -70.03, -1.75 | 116.87 | 04/06/2025 | 23:51:40 | -70.02, -1.68 | 116.87 | 3.00 | 69 |
| 12 | 04/09/2025 | 14:28:13 | -70.17, 139.19 | 117.70 | 04/09/2025 | 14:29:07 | -70.20, 139.20 | 117.68 | 2.83 | 54 |
| 13 | 04/09/2025 | 15:18:56 | 70.05, -53.31 | 62.17 | 04/09/2025 | 15:18:34 | 70.08, -53.33 | 62.20 | 3.20 | 22 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 3/28/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 03/28/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9