1. Introduction

2. Data and Analysis  
2.1. The Candidate ELIRG WISEJ0909+0002  
2.2. SED Fitting with X-CIGALE  
2.3. X-ray Spectral Analysis  

3. Results and Discussion  
3.1. IR Luminosity and Host Properties  
3.2. AGN Properties  
3.3. Expected Surface Number Density of X-ray Bright ELIRGs  
3.4. The Evolutionary Stage of WISEJ0909+0002