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: 4/26/2025
| 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 | 04/28/2025 | 06:44:51 | -70.19,-105.02 | 124.14 | 04/28/2025 | 06:45:45 | -70.21,-105.00 | 124.13 | 1.99 | 54 |
| 2 | 04/28/2025 | 07:35:35 | 70.10, 62.44 | 55.76 | 04/28/2025 | 07:35:12 | 70.10, 62.50 | 55.76 | 2.43 | 23 |
| 3 | 04/28/2025 | 08:26:03 | -69.24,-128.99 | 125.14 | 04/28/2025 | 08:24:55 | -69.28,-130.99 | 125.05 | 79.09 | 68 |
| 4 | 04/30/2025 | 23:01:49 | -70.15, 10.81 | 125.01 | 04/30/2025 | 23:02:15 | -70.14, 10.79 | 125.02 | 0.88 | 26 |
| 5 | 04/30/2025 | 23:52:33 | 70.05, 178.27 | 54.88 | 04/30/2025 | 23:51:42 | 70.04, 178.28 | 54.87 | 1.51 | 51 |
| 6 | 05/03/2025 | 14:28:05 | 70.23, -40.88 | 54.29 | 05/03/2025 | 14:29:14 | 70.20, -40.89 | 54.25 | 3.29 | 69 |
| 7 | 05/03/2025 | 15:18:47 | -70.12, 126.61 | 125.84 | 05/03/2025 | 15:18:44 | -70.09, 126.59 | 125.86 | 2.67 | 3 |
| 8 | 05/03/2025 | 16:09:26 | 69.75, -65.53 | 53.78 | 05/03/2025 | 16:08:14 | 69.82, -66.15 | 53.86 | 24.81 | 72 |
| 9 | 05/06/2025 | 06:45:01 | 70.16, 74.99 | 53.45 | 05/06/2025 | 06:45:41 | 70.16, 74.93 | 53.45 | 2.15 | 40 |
| 10 | 05/06/2025 | 07:35:43 | -70.05,-117.53 | 126.68 | 05/06/2025 | 07:35:11 | -70.05,-117.58 | 126.67 | 2.38 | 32 |
| 11 | 05/08/2025 | 22:11:24 | -70.72, 22.54 | 126.69 | 05/08/2025 | 22:12:34 | -70.63, 23.86 | 126.82 | 49.81 | 70 |
| 12 | 05/08/2025 | 23:01:59 | 70.15,-169.25 | 52.72 | 05/08/2025 | 23:02:08 | 70.13,-169.22 | 52.69 | 2.78 | 9 |
| 13 | 05/08/2025 | 23:52:41 | -70.04, -1.76 | 127.41 | 05/08/2025 | 23:51:38 | -70.03, -1.74 | 127.42 | 2.11 | 63 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/26/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 04/26/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9