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: 5/27/2025
| 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 | 05/30/2025 | 05:54:46 | 70.38, 87.21 | 48.50 | 05/30/2025 | 05:55:58 | 70.31, 87.51 | 48.42 | 13.69 | 72 |
| 2 | 05/30/2025 | 06:45:25 | -70.15,-105.12 | 131.74 | 05/30/2025 | 06:45:29 | -70.13,-105.11 | 131.76 | 2.49 | 4 |
| 3 | 05/30/2025 | 07:36:09 | 70.01, 62.41 | 48.11 | 05/30/2025 | 07:34:56 | 70.03, 62.40 | 48.14 | 2.54 | 73 |
| 4 | 06/01/2025 | 22:11:40 | 70.19,-156.74 | 47.94 | 06/01/2025 | 22:12:27 | 70.21,-156.75 | 47.96 | 2.11 | 47 |
| 5 | 06/01/2025 | 23:02:21 | -70.07, 10.77 | 132.19 | 06/01/2025 | 23:01:57 | -70.09, 10.72 | 132.17 | 2.94 | 24 |
| 6 | 06/04/2025 | 13:38:08 | -71.09, 150.26 | 131.44 | 06/04/2025 | 13:39:15 | -70.96, 152.62 | 131.63 | 86.57 | 67 |
| 7 | 06/04/2025 | 14:28:37 | 70.17, -40.94 | 47.60 | 06/04/2025 | 14:28:55 | 70.15, -40.95 | 47.58 | 1.96 | 18 |
| 8 | 06/04/2025 | 15:19:18 | -70.05, 126.56 | 132.53 | 06/04/2025 | 15:18:25 | -70.04, 126.52 | 132.54 | 1.89 | 53 |
| 9 | 06/07/2025 | 05:54:49 | -70.24, -92.59 | 132.61 | 06/07/2025 | 05:55:55 | -70.24, -92.59 | 132.61 | 0.06 | 66 |
| 10 | 06/07/2025 | 06:45:33 | 70.15, 74.85 | 47.30 | 06/07/2025 | 06:45:21 | 70.13, 74.90 | 47.28 | 2.99 | 12 |
| 11 | 06/07/2025 | 07:36:08 | -69.71,-117.17 | 133.16 | 06/07/2025 | 07:34:56 | -69.74,-118.00 | 133.10 | 32.30 | 72 |
| 12 | 06/09/2025 | 22:11:45 | -70.22, 23.20 | 132.85 | 06/09/2025 | 22:12:21 | -70.20, 23.24 | 132.88 | 2.85 | 36 |
| 13 | 06/09/2025 | 23:02:29 | 70.08,-169.28 | 47.01 | 06/09/2025 | 23:01:48 | 70.09,-169.27 | 47.02 | 0.62 | 41 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/27/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/27/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9