| 1 | outlier on the blue side of the main-sequence in the (U-g) versus (g-r) colour-colour diagram | 
| 02 | outlier on the blue side of the main sequence in the g versus (U-g) colour-magnitude diagram | 
| 04 | outlier on the blue side of the main-sequence in the g versus (g-r) colour magnitude diagram | 
| 08 | (unused) | 
| 16 | (unused) | 
| 32 | outlier on the purple side of the main sequence in the (U-g) versus (g-r) colour-colour diagram | 
| 64 | outlier on the non-purple side of the main sequence in the (U-g) versus (g-r) colour-colour diagram | 
| 128 | (unused) | 
| 256 | (unused) | 
| 512 | outlier on the blue side of the main sequence in the g versus (U-g) colour-magnitude diagram that lies more than 0.4mag away from the main-sequence blue edge | 
| 1024 | outlier on the blue side of the main sequence in the g versus (g-r) colour-magnitude diagram that lies more than 0.4mag away from the main-sequence blue edge |