Checking of model and geo-z of system J

If the model is acceptably good, than the delens source dispersion should be small, preferably smaller 1"

This is the delens of Lensed arc A - the right face, which gives a very good delens result. Delens source dispersion is 0.08 arcsec at its spec-z z=2.198

Lensed arc A

For lensed arc B, the left face, excluding the outlier near the cluster member B1, also give a very good delens result. dispersion is 0.09 arcsec at spec-z 0.9657

B1 image, Not used in generating the model and not used in calculating geo-z

For lensed arc C, the smile, average dispersion is 0.32 arcsec, this is acceptable as we know from the counterimage C3, this is not a point source . Given the size of C3 image is around 1 arcsec by 0.5 arcsec, a 0.32 arcsec dispersion is okay.

C3 counter image, size: roughly 1 arcsec by 0.5 arcsec

Lensed arc C

The lensed arc J [J1 and J2] has similar SED and similar radial distance from BCG, which is very likely to be the same system.

Geo-z is 2.21 for this lensed system, with delens dispersion of 0.03 arcsec at that redshift.

Lensed images from system A and J , J is the inner arc

Lensed system 5, or "G1, K2, H1" show dispersion of 1 arcsec at z=3.24.

G1 K2 H1 SED

Delens Dispersion of G1 K2 H1