We report the discovery of a high mass-ratio planet q = 0.012 , i.e. , 13 times higher than the Jupiter/Sun ratio .
The host mass is not presently measured but can be determined or strongly constrained from adaptive optics imaging .
The planet was discovered in a small archival study of high-magnification events in pure-survey microlensing data , which was unbiased by the presence of anomalies .
The fact that it was previously unnoticed may indicate that more such planets lie in archival data and could be discovered by similar systematic study .
In order to understand the transition from predominantly survey+followup to predominately survey-only planet detections , we conduct the first analysis of these detections in the observational ( s,q ) plane .
Here s is projected separation in units of the Einstein radius .
We find some evidence that survey+followup is relatively more sensitive to planets near the Einstein ring , but that there is no statistical difference in sensitivity by mass ratio .