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: 10/23/2025
| 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 | 10/25/2025 | 07:10:19 | -70.09,-111.25 | 97.81 | 10/25/2025 | 07:11:01 | -70.08,-111.28 | 97.82 | 1.69 | 42 |
| 2 | 10/25/2025 | 08:01:04 | 70.00, 56.20 | 82.11 | 10/25/2025 | 08:00:28 | 69.97, 56.22 | 82.09 | 2.60 | 36 |
| 3 | 10/27/2025 | 22:36:43 | 70.95,-164.17 | 83.96 | 10/27/2025 | 22:37:49 | 70.85,-161.89 | 83.86 | 83.58 | 66 |
| 4 | 10/27/2025 | 23:27:09 | -70.05, 4.60 | 96.94 | 10/27/2025 | 23:27:32 | -70.04, 4.53 | 96.96 | 3.17 | 23 |
| 5 | 10/28/2025 | 00:17:54 | 69.97, 172.03 | 82.99 | 10/28/2025 | 00:16:58 | 69.98, 172.10 | 83.01 | 3.14 | 56 |
| 6 | 10/30/2025 | 14:53:19 | 70.20, -47.15 | 84.09 | 10/30/2025 | 14:54:30 | 70.20, -46.98 | 84.09 | 6.38 | 71 |
| 7 | 10/30/2025 | 15:43:59 | -70.03, 120.43 | 96.08 | 10/30/2025 | 15:44:01 | -70.04, 120.42 | 96.07 | 1.34 | 2 |
| 8 | 10/30/2025 | 16:34:42 | 69.84, -71.98 | 83.75 | 10/30/2025 | 16:33:29 | 69.87, -72.17 | 83.78 | 7.97 | 73 |
| 9 | 11/02/2025 | 07:10:07 | 70.14, 68.74 | 84.88 | 11/02/2025 | 07:10:58 | 70.14, 68.82 | 84.88 | 3.03 | 51 |
| 10 | 11/02/2025 | 08:00:48 | -70.01,-123.75 | 95.24 | 11/02/2025 | 08:00:29 | -69.98,-123.77 | 95.27 | 3.18 | 19 |
| 11 | 11/02/2025 | 08:51:16 | 69.03, 44.97 | 83.80 | 11/02/2025 | 08:50:10 | 69.09, 42.67 | 83.85 | 91.74 | 66 |
| 12 | 11/04/2025 | 23:26:56 | 70.08,-175.38 | 85.65 | 11/04/2025 | 23:27:26 | 70.08,-175.38 | 85.65 | 0.51 | 30 |
| 13 | 11/05/2025 | 00:17:37 | -69.95, -7.87 | 94.47 | 11/05/2025 | 00:16:56 | -69.98, -7.89 | 94.45 | 2.87 | 41 |
Figure of NOAA-21 and LANDSAT-8 satellite orbits during SNOs since TLE Epoch: 10/23/2025
Download SNOs between NOAA-21 and LANDSAT-8 since TLE EPOCH: 10/23/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and LANDSAT-8