HST 12368+6212

Observed	HST Model	MLE Model	Residual	Lensed source	Filter
					F814W iz.ms
					F606W vz.ms
					F450W bz.ms

HST 12368+6212 is an arc in the Hubble Deep Field (HDF).
The lensing elliptical galaxy has an apparent (V-I) color of 1.0 mag and (B-V)=2.0 mag.
The significantly distorted lensed source is extended with a color (V-I)=0.3 mag, and (B-V)=0.2 mag.
The impact radius is 0".4.
The image magnification is about 1.7 magnitudes.
The model gives a good fit with a normalized chi² just larger than unity.

Name	HST 12368+6212
Equatorial(J2000)	12:36:49.0		+62:12:22		PA_V3=112^o.00
HST WFPC2	WILLIAMS DD:6337 1995-Dec-27
Dataset[g][x,y]	U31P031AT[3][448,691]
MDS Field:id lens galaxy	uhdfk:0056
HST WFPC2 Filter	F814W		F606W		F450W
Exposure seconds	58x2137		103x1050		58x2182
log (integrated S/N Ratio)	3.66		3.31		2.64
Fitted Parameter	MLE	+/- rms	MLE	+/- rms	MLE	+/- rms
Sky Mag. (arcsec²)	22.116	0.001	22.754	0.001	23.268	0.001
Total Mag of lens galaxy	22.01	Fixed	23.98	0.01	26.02	0.16
X centroid 0".1 Pix	448.55	0.01	448.28	0.01	448.56	0.03
Y centroid 0".1 Pix	690.20	0.01	690.74	0.01	690.96	0.03
Half-light radius	0".283	0".001	0".316	0".005	0".332	0".076
Orientation of light	- 77^o.5	1^o.5	- 81^o.2	2^o.2	- 3^o.2	114^o.6
Axis Ratio of the light	0.82	0.01	0.71	0.02	1.00	0.03
Mag. of lensed source	26.66	0.02	27.00	0.04	27.17	0.02
Source X offset 0".1 Pix	- 2.62	Fixed	- 2.62	0.02	- 2.62	Fixed
Source Y offset 0".1 Pix	3.45	Fixed	3.45	0.03	3.45	Fixed
Critical Radius	0".583	Fixed	0".583	0".004	0".583	Fixed
Axis Ratio Lens mass	0.58	Fixed	0.58	0.01	0.58	Fixed
Lens Orientation	30^o.9	Fixed	30^o.9	0^o.7	30^o.9	Fixed
Source half-light	0".053	Fixed	0".053	0".002	0".053	Fixed
Source Orientation	0^o.0	Fixed	0^o.0	Fixed	0^o.0	Fixed
Source Axis-Ratio	1.00	Fixed	1.00	Fixed	1.00	Fixed

Lens galaxy from MDS-Pipeline fit