Visual Inspection of V3 Extended Sources

XS_Artifact_Queries 10-14-01 10-19 10-26 11-02 11-09 11-16 11-21 11-30 12-07 12-14 12-21 12-28 1-04 1-11 1-18 1-25 2-1 2-8 2-15
edge_elong 2711 3115 6780 10389 11203 18343 19751 23647 27302 28869 --- 43861 46347 43056 43916 --- --- --- 52675
elongated 3039 5305 12093 14252 17542 11998 12691 14947 16562 17672 --- 21934 22887 24829 25438 --- --- --- 30876
bright 1337 1489 1842 2116 2620 11652 12704 21559 21690 21690 --- 27413 29315 74452 96526 --- --- --- 160547
asymmetric(1) --- 2846 4806 5631 7048 9282 10236 10628 11323 11502 --- 11502 16883 18575 18575 --- --- --- 23388
asymmetric(2) --- 4151 6169 6763 8037 11604 12016 13441 14575 14655 --- 14655 23433 25277 25277 --- --- --- 32985
high_density 5738 7360 8226 12164 15129 20303 23347 26495 30035 33011 --- 38038 42414 42414 42414 --- --- --- 60271
red 804 1130 1634 1983 2323 2756 3061 3368 3718 3944 --- 5237 5840 6111 6194 --- --- --- 7264
blue 976 1488 2497 2766 3243 3980 4264 4902 5614 5874 --- 9164 9818 10371 10433 --- --- --- 12831
big 961 1719 3883 4425 5328 9715 10216 11790 13497 13906 --- 17742 18974 19983 20384 --- --- --- 24091
Sbs --- --- --- 2095 3706 1789 1793 2754 2756 2976 --- 3908 4928 5666 5666 --- --- --- 5666
Gbs --- --- --- --- --- --- --- --- 2832 2947 --- 3119 3332 3943 3943 --- --- --- ---
-------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --- ---- --- ---- ---- --- --- --- ---
truth_table 202,619 207,839 217,511 225,052 239,910 264,791 271,382 284,632 304,697 314,908 --- 341,939 353,533 382708 402,257 --- --- --- 463,926

Table notes: All values are cummulative and represent sources from the extended source database: galaxies, clusters, nebulosity, double/triple stars, artifacts, etc (see Truth Table for description). The detailed queries are given below. An example of the detailed break-down for the Edge_Elong query/visual inspection is given here; also see the progress chart.

XS_Artifact_Queries	10-14-01	10-19	10-26	11-02	11-09	11-16	11-21	11-30	12-07	12-14	12-21	12-28	1-04	1-11	1-18	1-25	2-1	2-8	2-15
edge_elong	2711	3115	6780	10389	11203	18343	19751	23647	27302	28869	---	43861	46347	43056	43916	---	---	---	52675
elongated	3039	5305	12093	14252	17542	11998	12691	14947	16562	17672	---	21934	22887	24829	25438	---	---	---	30876
bright	1337	1489	1842	2116	2620	11652	12704	21559	21690	21690	---	27413	29315	74452	96526	---	---	---	160547
asymmetric(1)	---	2846	4806	5631	7048	9282	10236	10628	11323	11502	---	11502	16883	18575	18575	---	---	---	23388
asymmetric(2)	---	4151	6169	6763	8037	11604	12016	13441	14575	14655	---	14655	23433	25277	25277	---	---	---	32985
high_density	5738	7360	8226	12164	15129	20303	23347	26495	30035	33011	---	38038	42414	42414	42414	---	---	---	60271
red	804	1130	1634	1983	2323	2756	3061	3368	3718	3944	---	5237	5840	6111	6194	---	---	---	7264
blue	976	1488	2497	2766	3243	3980	4264	4902	5614	5874	---	9164	9818	10371	10433	---	---	---	12831
big	961	1719	3883	4425	5328	9715	10216	11790	13497	13906	---	17742	18974	19983	20384	---	---	---	24091
Sbs	---	---	---	2095	3706	1789	1793	2754	2756	2976	---	3908	4928	5666	5666	---	---	---	5666
Gbs	---	---	---	---	---	---	---	---	2832	2947	---	3119	3332	3943	3943	---	---	---	---
--------	----	----	----	----	----	----	----	----	----	----	---	----	---	----	----	---	---	---	---
truth_table	202,619	207,839	217,511	225,052	239,910	264,791	271,382	284,632	304,697	314,908	---	341,939	353,533	382708	402,257	---	---	---	463,926

All-Sky IRSA DB Queries

All queries include a test on the "g_score" and the S/N (as given by the fixed r=7" aperture or the isophotal aperture)

edge_elong
Elongated sources in close proximity to a cross-scan edge:

r_k20fe > 8. and sup_ba <= 0.80 and (x_coadd < 50. or x_coadd > 462)

elongated
Highly elongated sources:

(j_ba < 0.3 or h_ba < 0.3 or k_ba < 0.3 or sup_ba < 0.3 )

bright
Very bright XS:

high density
Sources located in the ZoA:

abs(glat) < 10.0

asymmetry(1)
Sources that are measured to be azimuthally asymmetric as given by the bi-symmetric flux ratio:

asymmetry(2)
Sources that have a poor ellipse fit to the 3-sigma isophote:

(j_chif_ellf > 30 or k_chif_ellf > 30 or sup_chif_ellf > 30 )

red
Sources with very red J-K colors:

j_k > 2

blue
Sources with very blue J-K colors:

j_k < 0.7

big
Radially large sources:

r_k20fe > 25

large image
Large Postage Stamp Images

im_nx > 120

Sbs
Sources in close proximity to super bright stars

Gbs
Sources in close proximity to large galaxies

search radius: 15 arcmin

truth table
A running list of sources that have been visually inspected using 2MASS postage stamp images (J, H, Ks and three-color combinations), as well as with POSS prints when necessary. Most of the inspection has been carried out by TJarrett, with additional input from JHuchra & students (via cfa redshift survey), SSchneider, RTamm, and CXu. The classification scheme: