Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between GOES-18 and NOAA-21 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/4/2025
| Index | Date | Time (GOES-18) | GOES-18 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 11/05/2025 | 22:46:05 | 0.02,-137.02 | -0.73,-140.43 | 388.52 | 80 |
| 2 | 11/06/2025 | 22:27:19 | 0.01,-137.02 | 0.29,-135.89 | 129.30 | 80 |
| 3 | 11/08/2025 | 10:51:42 | -0.00,-137.02 | 0.94,-141.13 | 469.97 | 80 |
| 4 | 11/09/2025 | 10:30:16 | -0.01,-137.01 | -0.08,-136.60 | 47.06 | 80 |
| 5 | 11/11/2025 | 22:36:04 | 0.01,-137.01 | -0.06,-137.35 | 39.14 | 80 |
| 6 | 11/12/2025 | 22:14:37 | 0.02,-137.01 | 0.96,-132.82 | 477.85 | 80 |
| 7 | 11/14/2025 | 10:39:01 | -0.01,-137.00 | 0.20,-138.07 | 121.79 | 80 |
| 8 | 11/15/2025 | 10:17:35 | -0.02,-136.99 | -0.82,-133.53 | 395.06 | 80 |
| 9 | 11/16/2025 | 22:42:08 | 0.01,-136.99 | -0.39,-138.82 | 208.26 | 80 |
| 10 | 11/17/2025 | 22:20:42 | 0.01,-136.98 | 0.64,-134.28 | 308.42 | 80 |
Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/4/2025
Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 11/04/2025 in txt file.
Historical Predications of SNOs between GOES-18 and NOAA-21