Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/29/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 04/29/2025 | 15:42:38 | -70.02, 120.38 | 124.74 | 04/29/2025 | 15:43:29 | -70.03, 120.33 | 124.73 | 2.62 | 51 |
| 2 | 04/29/2025 | 16:33:22 | 69.90, -72.14 | 55.14 | 04/29/2025 | 16:32:56 | 69.93, -72.17 | 55.16 | 3.09 | 26 |
| 3 | 04/29/2025 | 17:23:48 | -68.96, 96.54 | 125.85 | 04/29/2025 | 17:22:41 | -68.99, 94.21 | 125.76 | 92.99 | 67 |
| 4 | 05/02/2025 | 07:09:09 | 70.91, 67.41 | 55.39 | 05/02/2025 | 07:10:16 | 70.77, 69.66 | 55.20 | 83.59 | 67 |
| 5 | 05/02/2025 | 07:59:36 | -70.02,-123.86 | 125.55 | 05/02/2025 | 07:59:58 | -70.00,-123.83 | 125.57 | 1.72 | 22 |
| 6 | 05/02/2025 | 08:50:20 | 69.91, 43.62 | 54.33 | 05/02/2025 | 08:49:25 | 69.90, 43.66 | 54.32 | 2.25 | 55 |
| 7 | 05/04/2025 | 23:25:51 | 70.08,-175.51 | 53.75 | 05/04/2025 | 23:26:56 | 70.10,-175.45 | 53.76 | 3.13 | 65 |
| 8 | 05/05/2025 | 00:16:33 | -69.97, -8.03 | 126.37 | 05/05/2025 | 00:16:26 | -69.99, -7.97 | 126.36 | 3.01 | 7 |
| 9 | 05/05/2025 | 01:07:10 | 69.50, 159.98 | 53.13 | 05/05/2025 | 01:05:59 | 69.55, 159.07 | 53.21 | 35.93 | 71 |
| 10 | 05/07/2025 | 15:42:48 | 70.05, -59.70 | 52.98 | 05/07/2025 | 15:43:24 | 70.05, -59.64 | 52.96 | 2.35 | 36 |
| 11 | 05/07/2025 | 16:33:30 | -69.94, 107.79 | 127.15 | 05/07/2025 | 16:32:54 | -69.94, 107.84 | 127.15 | 2.14 | 36 |
| 12 | 05/10/2025 | 07:09:07 | -70.49,-111.93 | 127.28 | 05/10/2025 | 07:10:18 | -70.40,-110.90 | 127.40 | 39.91 | 71 |
| 13 | 05/10/2025 | 07:59:43 | 69.98, 56.17 | 52.19 | 05/10/2025 | 07:59:50 | 70.01, 56.19 | 52.21 | 3.44 | 7 |
| 14 | 05/10/2025 | 08:50:25 | -69.86,-136.34 | 127.95 | 05/10/2025 | 08:49:21 | -69.85,-136.40 | 127.95 | 2.79 | 64 |
| 15 | 05/12/2025 | 23:25:56 | -70.06, 4.51 | 128.41 | 05/12/2025 | 23:26:50 | -70.05, 4.49 | 128.42 | 0.95 | 54 |
| 16 | 05/13/2025 | 00:16:39 | 69.92, 172.03 | 51.44 | 05/13/2025 | 00:16:17 | 69.94, 171.97 | 51.46 | 3.01 | 22 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 4/29/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 04/29/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9