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: 11/13/2025
| Index | Date | Time (GOES-18) | GOES-18 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 11/14/2025 | 10:39:38 | -0.01,-136.99 | 0.26,-138.21 | 139.56 | 80 |
| 2 | 11/15/2025 | 10:18:16 | -0.01,-136.99 | -0.75,-133.69 | 375.83 | 80 |
| 3 | 11/16/2025 | 22:40:16 | 0.00,-137.00 | -0.43,-139.01 | 229.27 | 80 |
| 4 | 11/17/2025 | 22:24:13 | -0.00,-136.99 | 0.53,-134.48 | 286.12 | 80 |
| 5 | 11/19/2025 | 10:46:03 | 0.01,-136.97 | 0.63,-139.75 | 316.91 | 80 |
| 6 | 11/20/2025 | 10:24:41 | 0.01,-136.96 | -0.39,-135.23 | 197.69 | 80 |
| 7 | 11/21/2025 | 22:46:40 | -0.02,-136.95 | -0.82,-140.54 | 409.11 | 80 |
| 8 | 11/22/2025 | 22:27:58 | -0.01,-136.94 | 0.22,-136.02 | 105.11 | 80 |
| 9 | 11/24/2025 | 10:52:27 | 0.01,-136.91 | 1.00,-141.29 | 499.27 | 80 |
| 10 | 11/25/2025 | 10:31:04 | 0.01,-136.89 | -0.04,-136.77 | 14.67 | 80 |
Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 11/13/2025
Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 11/13/2025 in txt file.
Historical Predications of SNOs between GOES-18 and NOAA-21