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: 9/3/2025
| 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 | 09/04/2025 | 14:03:40 | 70.53, -35.26 | 63.53 | 09/04/2025 | 14:04:50 | 70.44, -34.25 | 63.41 | 38.74 | 70 |
| 2 | 09/04/2025 | 14:54:15 | -70.06, 132.80 | 116.95 | 09/04/2025 | 14:54:25 | -70.05, 132.82 | 116.96 | 1.34 | 10 |
| 3 | 09/04/2025 | 15:44:59 | 69.96, -59.74 | 62.96 | 09/04/2025 | 15:43:52 | 69.95, -59.68 | 62.96 | 2.57 | 67 |
| 4 | 09/07/2025 | 06:20:26 | 70.11, 81.18 | 64.09 | 09/07/2025 | 06:21:25 | 70.11, 81.16 | 64.08 | 0.64 | 59 |
| 5 | 09/07/2025 | 07:11:08 | -70.01,-111.35 | 116.01 | 09/07/2025 | 07:10:55 | -70.00,-111.36 | 116.01 | 1.02 | 13 |
| 6 | 09/07/2025 | 08:01:41 | 69.33, 56.97 | 63.31 | 09/07/2025 | 08:00:32 | 69.34, 55.38 | 63.36 | 62.22 | 69 |
| 7 | 09/09/2025 | 22:37:19 | 70.08,-162.99 | 65.06 | 09/09/2025 | 22:37:54 | 70.08,-163.01 | 65.05 | 0.75 | 35 |
| 8 | 09/09/2025 | 23:28:01 | -69.97, 4.48 | 115.04 | 09/09/2025 | 23:27:24 | -69.97, 4.47 | 115.04 | 0.56 | 37 |
| 9 | 09/12/2025 | 14:03:38 | -70.67, 144.54 | 113.33 | 09/12/2025 | 14:04:48 | -70.55, 145.92 | 113.49 | 53.15 | 70 |
| 10 | 09/12/2025 | 14:54:12 | 70.05, -47.17 | 66.04 | 09/12/2025 | 14:54:22 | 70.05, -47.15 | 66.05 | 1.02 | 10 |
| 11 | 09/12/2025 | 15:44:54 | -69.95, 120.30 | 114.05 | 09/12/2025 | 15:43:52 | -69.95, 120.33 | 114.05 | 1.28 | 62 |
| 12 | 09/15/2025 | 06:20:20 | -70.14, -98.83 | 112.86 | 09/15/2025 | 06:21:22 | -70.11, -98.83 | 112.90 | 3.29 | 62 |
| 13 | 09/15/2025 | 07:11:03 | 69.98, 68.72 | 66.99 | 09/15/2025 | 07:10:49 | 69.99, 68.65 | 67.01 | 2.82 | 14 |
| 14 | 09/15/2025 | 08:01:37 | -69.46,-123.20 | 113.53 | 09/15/2025 | 08:00:26 | -69.50,-124.39 | 113.46 | 46.72 | 71 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 9/3/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 09/03/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8