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: 10/27/2025
| 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 | 10/27/2025 | 22:36:43 | 70.95,-164.17 | 83.96 | 10/27/2025 | 22:37:50 | 70.84,-161.92 | 83.85 | 82.73 | 67 |
| 2 | 10/27/2025 | 23:27:09 | -70.06, 4.59 | 96.94 | 10/27/2025 | 23:27:32 | -70.07, 4.58 | 96.92 | 1.55 | 23 |
| 3 | 10/28/2025 | 00:17:54 | 69.97, 172.04 | 82.99 | 10/28/2025 | 00:16:59 | 69.97, 172.08 | 82.99 | 1.61 | 55 |
| 4 | 10/30/2025 | 14:53:20 | 70.25, -47.23 | 84.14 | 10/30/2025 | 14:54:32 | 70.19, -47.01 | 84.08 | 10.78 | 72 |
| 5 | 10/30/2025 | 15:43:59 | -70.03, 120.42 | 96.08 | 10/30/2025 | 15:44:03 | -70.03, 120.39 | 96.08 | 1.16 | 4 |
| 6 | 10/30/2025 | 16:34:43 | 69.89, -72.06 | 83.80 | 10/30/2025 | 16:33:30 | 69.92, -72.11 | 83.83 | 3.78 | 73 |
| 7 | 11/02/2025 | 07:10:07 | 70.13, 68.74 | 84.88 | 11/02/2025 | 07:11:02 | 70.12, 68.76 | 84.86 | 2.16 | 55 |
| 8 | 11/02/2025 | 08:00:48 | -70.01,-123.76 | 95.24 | 11/02/2025 | 08:00:32 | -70.01,-123.75 | 95.24 | 0.33 | 16 |
| 9 | 11/02/2025 | 08:51:19 | 69.19, 44.75 | 83.96 | 11/02/2025 | 08:50:11 | 69.24, 42.84 | 84.00 | 75.66 | 68 |
| 10 | 11/04/2025 | 23:26:56 | 70.08,-175.38 | 85.65 | 11/04/2025 | 23:27:32 | 70.06,-175.43 | 85.63 | 2.58 | 36 |
| 11 | 11/05/2025 | 00:17:37 | -69.95, -7.87 | 94.47 | 11/05/2025 | 00:17:02 | -69.96, -7.94 | 94.46 | 2.91 | 35 |
| 12 | 11/07/2025 | 14:53:15 | -70.88, 131.82 | 92.75 | 11/07/2025 | 14:54:23 | -70.75, 133.82 | 92.89 | 74.53 | 68 |
| 13 | 11/07/2025 | 15:43:45 | 70.03, -59.52 | 86.41 | 11/07/2025 | 15:44:01 | 70.03, -59.59 | 86.40 | 2.73 | 16 |
| 14 | 11/07/2025 | 16:34:27 | -69.95, 107.92 | 93.67 | 11/07/2025 | 16:33:31 | -69.93, 107.90 | 93.69 | 2.28 | 56 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/27/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/27/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8