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: 10/22/2025
| Index | Date | Time (GOES-18) | GOES-18 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 10/23/2025 | 10:52:12 | -0.01,-137.00 | 0.92,-141.28 | 487.50 | 80 |
| 2 | 10/24/2025 | 10:30:46 | -0.01,-136.99 | -0.08,-136.74 | 29.39 | 80 |
| 3 | 10/26/2025 | 22:36:33 | 0.00,-136.98 | -0.09,-137.49 | 58.01 | 80 |
| 4 | 10/27/2025 | 22:15:07 | 0.01,-136.97 | 0.91,-132.95 | 458.09 | 80 |
| 5 | 10/29/2025 | 10:39:31 | -0.01,-136.95 | 0.28,-138.20 | 143.27 | 80 |
| 6 | 10/30/2025 | 10:18:05 | -0.01,-136.94 | -0.73,-133.66 | 372.48 | 80 |
| 7 | 10/31/2025 | 22:42:39 | 0.01,-136.92 | -0.44,-138.96 | 232.37 | 80 |
| 8 | 11/01/2025 | 22:21:13 | 0.01,-136.91 | 0.57,-134.42 | 283.25 | 80 |
| 9 | 11/03/2025 | 10:45:37 | 0.00,-136.87 | 0.61,-139.67 | 318.67 | 80 |
| 10 | 11/04/2025 | 10:24:10 | 0.00,-136.85 | -0.41,-135.13 | 196.52 | 80 |
Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 10/22/2025
Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 10/22/2025 in txt file.
Historical Predications of SNOs between GOES-18 and NOAA-21