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: 9/29/2025
| Index | Date | Time (GOES-18) | GOES-18 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 09/29/2025 | 22:43:25 | 0.00,-137.00 | -0.46,-139.18 | 248.01 | 80 |
| 2 | 09/30/2025 | 22:22:00 | 0.01,-137.00 | 0.56,-134.64 | 268.98 | 80 |
| 3 | 10/02/2025 | 10:46:26 | -0.02,-137.00 | 0.63,-139.90 | 331.22 | 80 |
| 4 | 10/03/2025 | 10:25:00 | -0.02,-137.00 | -0.40,-135.37 | 185.49 | 80 |
| 5 | 10/04/2025 | 22:46:55 | 0.01,-136.99 | -0.80,-140.66 | 418.00 | 80 |
| 6 | 10/05/2025 | 22:30:49 | 0.01,-136.99 | 0.23,-136.13 | 98.82 | 80 |
| 7 | 10/08/2025 | 10:33:49 | 0.02,-136.97 | -0.04,-136.85 | 14.95 | 80 |
| 8 | 10/10/2025 | 22:34:17 | -0.03,-136.94 | -0.17,-137.60 | 74.86 | 80 |
| 9 | 10/11/2025 | 22:18:11 | -0.03,-136.93 | 0.87,-133.07 | 440.40 | 80 |
| 10 | 10/13/2025 | 10:39:57 | 0.03,-136.90 | 0.33,-138.32 | 162.16 | 80 |
Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/29/2025
Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 09/29/2025 in txt file.
Historical Predications of SNOs between GOES-18 and NOAA-21