1. Introduction  
2. Spatial Model Fitting  
2.1. Parameter Model Estimation  
2.2. Source Significance  
2.3. Method Implementation  
2.4. Instrumental Response  
3. Analysis  
3.1. Data Selection and Screening  
3.2. Imaging Reconstruction  
3.3. Setting the Significance Threshold  
3.4. Noise Properties and Sky Coverage  
3.5. Source Detections and Fluxes  
3.6. Detected Sources  
3.7. XRT Observations  
4. Conclusions