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: 9/27/2025
| Index | Date | Time (GOES-18) | GOES-18 Lat,Lon | NOAA-21 Lat,Lon | Distance(km) | Time Diff (sec) |
| 1 | 09/28/2025 | 10:18:50 | -0.01,-136.99 | -0.70,-133.88 | 354.63 | 80 |
| 2 | 09/29/2025 | 22:40:44 | 0.00,-136.98 | -0.51,-139.17 | 249.80 | 80 |
| 3 | 09/30/2025 | 22:24:39 | 0.01,-136.97 | 0.51,-134.63 | 265.81 | 80 |
| 4 | 10/02/2025 | 10:46:26 | -0.02,-136.95 | 0.62,-139.91 | 336.95 | 80 |
| 5 | 10/03/2025 | 10:25:00 | -0.02,-136.93 | -0.35,-135.36 | 178.49 | 80 |
| 6 | 10/04/2025 | 22:46:54 | 0.01,-136.91 | -0.85,-140.65 | 426.76 | 80 |
| 7 | 10/05/2025 | 22:30:48 | 0.01,-136.90 | 0.18,-136.12 | 88.61 | 80 |
| 8 | 10/08/2025 | 10:31:08 | 0.01,-136.84 | 0.02,-136.84 | 0.59 | 80 |
| 9 | 10/10/2025 | 22:34:16 | -0.03,-136.79 | -0.23,-137.59 | 92.07 | 80 |
Figure of GOES-18 and NOAA-21 satellite orbits during SNOs since TLE Epoch: 9/27/2025
Download SNOs between GOES-18 and NOAA-21 since TLE EPOCH: 09/27/2025 in txt file.
Historical Predications of SNOs between GOES-18 and NOAA-21