Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and LANDSAT-8 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 4/22/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (LANDSAT-8) | Time (LANDSAT-8) | Lat,Lon (LANDSAT-8) | SZA (LANDSAT-8 ) | Distance(km) | Time Diff (sec) |
| 1 | 04/24/2025 | 06:19:26 | -70.44, -99.02 | 122.59 | 04/24/2025 | 06:20:38 | -70.34, -98.60 | 122.71 | 19.03 | 72 |
| 2 | 04/24/2025 | 07:10:05 | 70.14, 68.75 | 57.10 | 04/24/2025 | 07:10:06 | 70.13, 68.74 | 57.08 | 1.77 | 1 |
| 3 | 04/24/2025 | 08:00:47 | -70.03,-123.76 | 123.04 | 04/24/2025 | 07:59:36 | -70.01,-123.80 | 123.05 | 2.61 | 71 |
| 4 | 04/26/2025 | 22:36:11 | -70.24, 17.09 | 123.67 | 04/26/2025 | 22:37:03 | -70.25, 17.16 | 123.66 | 2.95 | 52 |
| 5 | 04/26/2025 | 23:26:54 | 70.10,-175.39 | 56.19 | 04/26/2025 | 23:26:31 | 70.09,-175.43 | 56.17 | 1.92 | 23 |
| 6 | 04/27/2025 | 00:17:21 | -69.19, -6.75 | 124.76 | 04/27/2025 | 00:16:14 | -69.26, -8.93 | 124.65 | 86.28 | 67 |
| 7 | 04/29/2025 | 14:53:00 | -70.20, 132.93 | 124.54 | 04/29/2025 | 14:53:28 | -70.17, 132.94 | 124.58 | 3.40 | 28 |
| 8 | 04/29/2025 | 15:43:43 | 70.07, -59.55 | 55.31 | 04/29/2025 | 15:42:55 | 70.06, -59.57 | 55.31 | 0.80 | 48 |
| 9 | 05/02/2025 | 06:19:09 | 70.40, 81.10 | 54.87 | 05/02/2025 | 06:20:20 | 70.33, 81.44 | 54.78 | 14.93 | 71 |
| 10 | 05/02/2025 | 07:09:49 | -70.18,-111.24 | 125.38 | 05/02/2025 | 07:09:51 | -70.17,-111.16 | 125.40 | 3.23 | 2 |
| 11 | 05/02/2025 | 08:00:31 | 69.99, 56.36 | 54.42 | 05/02/2025 | 07:59:19 | 70.00, 56.24 | 54.44 | 4.36 | 72 |
| 12 | 05/04/2025 | 22:35:55 | 70.23,-162.84 | 53.91 | 05/04/2025 | 22:36:44 | 70.23,-162.80 | 53.90 | 1.52 | 49 |
| 13 | 05/04/2025 | 23:26:36 | -70.12, 4.65 | 126.22 | 05/04/2025 | 23:26:13 | -70.12, 4.67 | 126.22 | 1.06 | 23 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 4/22/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 04/22/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8