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: 10/31/2025
| 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 | 11/02/2025 | 07:10:08 | 70.14, 68.73 | 84.88 | 11/02/2025 | 07:11:03 | 70.12, 68.76 | 84.86 | 2.66 | 55 |
| 2 | 11/02/2025 | 08:00:49 | -70.02,-123.77 | 95.23 | 11/02/2025 | 08:00:33 | -70.01,-123.76 | 95.25 | 2.00 | 16 |
| 3 | 11/02/2025 | 08:51:20 | 69.19, 44.75 | 83.96 | 11/02/2025 | 08:50:12 | 69.24, 42.84 | 84.00 | 75.33 | 68 |
| 4 | 11/04/2025 | 23:26:56 | 70.08,-175.39 | 85.66 | 11/04/2025 | 23:27:32 | 70.07,-175.42 | 85.64 | 2.08 | 36 |
| 5 | 11/05/2025 | 00:17:37 | -69.96, -7.88 | 94.46 | 11/05/2025 | 00:17:02 | -69.96, -7.94 | 94.46 | 2.26 | 35 |
| 6 | 11/07/2025 | 14:53:15 | -70.89, 131.81 | 92.75 | 11/07/2025 | 14:54:23 | -70.76, 133.83 | 92.88 | 75.28 | 68 |
| 7 | 11/07/2025 | 15:43:45 | 70.04, -59.52 | 86.41 | 11/07/2025 | 15:44:01 | 70.05, -59.57 | 86.42 | 2.31 | 16 |
| 8 | 11/07/2025 | 16:34:27 | -69.96, 107.91 | 93.66 | 11/07/2025 | 16:33:31 | -69.94, 107.91 | 93.68 | 2.25 | 56 |
| 9 | 11/10/2025 | 07:09:51 | -70.17,-111.23 | 92.71 | 11/10/2025 | 07:11:02 | -70.16,-111.17 | 92.72 | 2.58 | 71 |
| 10 | 11/10/2025 | 08:00:35 | 70.05, 56.25 | 87.19 | 11/10/2025 | 08:00:29 | 70.05, 56.31 | 87.18 | 2.42 | 6 |
| 11 | 11/10/2025 | 08:51:14 | -69.81,-136.07 | 93.05 | 11/10/2025 | 08:50:01 | -69.84,-136.35 | 93.03 | 11.12 | 73 |
| 12 | 11/12/2025 | 23:26:40 | -70.13, 4.62 | 92.01 | 11/12/2025 | 23:27:30 | -70.14, 4.68 | 92.01 | 2.60 | 50 |
| 13 | 11/13/2025 | 00:17:24 | 70.03, 172.09 | 87.89 | 11/13/2025 | 00:16:57 | 70.02, 172.16 | 87.88 | 2.74 | 27 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/31/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/31/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8