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: 5/24/2025
| 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 | 05/24/2025 | 23:02:17 | 70.12,-169.28 | 49.10 | 05/24/2025 | 23:02:00 | 70.12,-169.23 | 49.10 | 1.97 | 17 |
| 2 | 05/24/2025 | 23:52:48 | -69.47, -1.00 | 131.58 | 05/24/2025 | 23:51:38 | -69.56, -2.38 | 131.46 | 54.58 | 70 |
| 3 | 05/27/2025 | 14:28:28 | -70.17, 139.09 | 131.31 | 05/27/2025 | 14:29:01 | -70.16, 139.06 | 131.32 | 1.42 | 33 |
| 4 | 05/27/2025 | 15:19:13 | 70.09, -53.47 | 48.60 | 05/27/2025 | 15:18:28 | 70.07, -53.44 | 48.58 | 2.44 | 45 |
| 5 | 05/30/2025 | 05:54:47 | 70.42, 87.14 | 48.55 | 05/30/2025 | 05:55:57 | 70.38, 87.61 | 48.48 | 18.10 | 70 |
| 6 | 05/30/2025 | 06:45:25 | -70.14,-105.10 | 131.75 | 05/30/2025 | 06:45:29 | -70.15,-105.08 | 131.74 | 1.29 | 4 |
| 7 | 05/30/2025 | 07:36:09 | 70.00, 62.42 | 48.10 | 05/30/2025 | 07:34:57 | 69.99, 62.34 | 48.10 | 3.15 | 72 |
| 8 | 06/01/2025 | 22:11:40 | 70.18,-156.72 | 47.93 | 06/01/2025 | 22:12:28 | 70.18,-156.80 | 47.92 | 2.90 | 48 |
| 9 | 06/01/2025 | 23:02:22 | -70.11, 10.70 | 132.15 | 06/01/2025 | 23:01:57 | -70.12, 10.75 | 132.14 | 2.00 | 25 |
| 10 | 06/04/2025 | 13:38:08 | -71.08, 150.27 | 131.45 | 06/04/2025 | 13:39:15 | -71.00, 152.66 | 131.60 | 86.89 | 67 |
| 11 | 06/04/2025 | 14:28:37 | 70.16, -40.93 | 47.59 | 06/04/2025 | 14:28:55 | 70.18, -40.91 | 47.60 | 2.23 | 18 |
| 12 | 06/04/2025 | 15:19:19 | -70.09, 126.50 | 132.49 | 06/04/2025 | 15:18:25 | -70.07, 126.57 | 132.51 | 3.35 | 54 |
| 13 | 06/07/2025 | 05:54:48 | -70.23, -92.58 | 132.61 | 06/07/2025 | 05:55:55 | -70.22, -92.61 | 132.63 | 1.45 | 67 |
| 14 | 06/07/2025 | 06:45:32 | 70.09, 74.94 | 47.24 | 06/07/2025 | 06:45:22 | 70.11, 74.87 | 47.27 | 3.48 | 10 |
| 15 | 06/07/2025 | 07:36:08 | -69.70,-117.16 | 133.17 | 06/07/2025 | 07:34:56 | -69.79,-117.95 | 133.06 | 31.88 | 72 |
Figure of NOAA-21 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 5/24/2025
Download SNOs between NOAA-21 and LANDSAT-9 since TLE EPOCH: 05/24/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-9