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: 4/3/2025
| 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 | 04/04/2025 | 06:45:16 | 70.14, 74.97 | 64.29 | 04/04/2025 | 06:45:50 | 70.13, 74.94 | 64.27 | 1.62 | 34 |
| 2 | 04/04/2025 | 07:35:58 | -70.03,-117.54 | 115.85 | 04/04/2025 | 07:35:20 | -70.03,-117.58 | 115.85 | 1.59 | 38 |
| 3 | 04/06/2025 | 22:11:36 | -70.87, 22.28 | 115.96 | 04/06/2025 | 22:12:44 | -70.78, 24.11 | 116.12 | 67.64 | 68 |
| 4 | 04/06/2025 | 23:02:07 | 70.11,-169.19 | 63.23 | 04/06/2025 | 23:02:21 | 70.12,-169.21 | 63.24 | 1.57 | 14 |
| 5 | 04/06/2025 | 23:52:49 | -69.99, -1.70 | 116.91 | 04/06/2025 | 23:51:51 | -70.02, -1.72 | 116.88 | 3.10 | 58 |
| 6 | 04/09/2025 | 14:28:15 | -70.22, 139.11 | 117.65 | 04/09/2025 | 14:29:24 | -70.21, 139.14 | 117.67 | 1.80 | 69 |
| 7 | 04/09/2025 | 15:18:58 | 70.09, -53.38 | 62.21 | 04/09/2025 | 15:18:51 | 70.09, -53.38 | 62.21 | 0.37 | 7 |
| 8 | 04/09/2025 | 16:09:36 | -69.76, 114.44 | 118.16 | 04/09/2025 | 16:08:24 | -69.83, 113.88 | 118.07 | 22.92 | 72 |
| 9 | 04/12/2025 | 06:45:05 | -70.15,-105.00 | 118.70 | 04/12/2025 | 06:45:53 | -70.16,-105.05 | 118.70 | 1.87 | 48 |
| 10 | 04/12/2025 | 07:35:48 | 70.03, 62.50 | 61.16 | 04/12/2025 | 07:35:20 | 70.04, 62.43 | 61.18 | 3.21 | 28 |
| 11 | 04/14/2025 | 22:11:29 | 71.13,-158.11 | 61.36 | 04/14/2025 | 22:12:35 | 71.02,-155.51 | 61.18 | 94.29 | 66 |
| 12 | 04/14/2025 | 23:01:55 | -70.16, 10.78 | 119.67 | 04/14/2025 | 23:02:19 | -70.15, 10.83 | 119.68 | 1.69 | 24 |
| 13 | 04/14/2025 | 23:52:38 | 70.03, 178.28 | 60.19 | 04/14/2025 | 23:51:46 | 70.03, 178.30 | 60.20 | 0.82 | 52 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/3/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/03/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9