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: 9/30/2025
| Index | Date | Time (GOES-18) | GOES-18 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 09/30/2025 | 22:21:59 | 0.01,-137.00 | 0.55,-134.64 | 269.11 | 80 |
| 2 | 10/02/2025 | 10:46:26 | -0.02,-137.00 | 0.64,-139.90 | 331.05 | 80 |
| 3 | 10/03/2025 | 10:25:00 | -0.02,-137.00 | -0.39,-135.37 | 185.69 | 80 |
| 4 | 10/04/2025 | 22:46:54 | 0.02,-137.00 | -0.80,-140.66 | 417.68 | 80 |
| 5 | 10/05/2025 | 22:30:49 | 0.01,-136.99 | 0.23,-136.13 | 99.22 | 80 |
| 6 | 10/08/2025 | 10:31:08 | 0.02,-136.98 | 0.01,-136.84 | 15.48 | 80 |
| 7 | 10/10/2025 | 22:34:17 | -0.03,-136.95 | -0.15,-137.60 | 74.08 | 80 |
| 8 | 10/11/2025 | 22:18:10 | -0.02,-136.93 | 0.83,-133.06 | 441.28 | 80 |
| 9 | 10/13/2025 | 10:39:55 | 0.03,-136.90 | 0.36,-138.31 | 161.21 | 80 |
| 10 | 10/14/2025 | 10:18:30 | 0.02,-136.88 | -0.69,-133.79 | 353.90 | 80 |
Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/30/2025
Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 09/30/2025 in txt file.
Historical Predications of SNOs between GOES-18 and NOAA-21