Scans Which Violate A 0.10 Threshold

These plots are for all scans that have processed coadds that have magnitude thresholds for unconfused areas, which are 15.50, 14.75 and 14.25 mag for J, H and K, respectively, which have any coadds which violate a threshold of 0.10 for the residual H background sigma. The list of scans is given below.

In the table below, scans marked by '*' are ones identified by the quality analysts as being severely affected by airglow. Note the quality job done by R. Hurt, D. Kirkpatrick and R. Cutri - they have picked out nearly every single scan with a maximum residual H background sigma above 0.20 past 970913n.

DateScanNo. coadds violating thresholdMax. residual H bkgnd_sigmaq.a. id
6/7/9772110.19
6/7/977340.13
6/9/972810.21
6/9/972910.24
6/9/975360.16
6/9/977510.10
6/11/976090.20
6/11/977450.14
6/17/975660.24
6/17/9758140.19
7/24/972720.13
7/31/971610.29
9/13/977810.10
9/13/9710420.11
9/13/9711820.11
9/13/9712620.13
9/13/9712740.16*
9/23/978140.12
9/23/978450.12
10/4/971850.13
10/4/9753110.35*
10/4/9754220.23*
10/4/9755100.22*
10/4/975640.14*
10/4/978410.10
10/4/979710.10
10/4/979810.10
10/5/972020.11
10/5/977370.14
10/5/977550.13
10/5/9776100.21
10/5/9791100.16
10/5/979320.13
10/5/979430.14
10/5/9795150.20
10/5/979640.28
10/5/9797180.48*
10/5/9798110.24
10/5/9710020.12
10/5/9710160.25
10/5/9712130.11
10/5/9712260.24
10/5/9712410.12
10/6/977520.11
10/9/9710210.14
10/9/9712810.14
10/9/9713010.32
11/10/972510.12
11/16/972410.10
11/16/972610.12
11/16/972720.13
11/16/973520.14
11/16/9713020.11
11/16/9713320.11
1/6/985210.10
1/12/982720.12
1/13/981010.15
1/13/981110.14
1/13/981330.13
1/13/981450.14
1/13/983360.21*
1/13/983460.21*
1/13/983620.29*
1/13/983760.15*
1/13/983810.20*
1/15/985110.15
1/15/986410.14
1/15/986510.15
1/25/985720.15
1/25/985810.13
1/25/986220.14
1/25/986910.11
1/25/988110.10

http://spider.ipac.caltech.edu/staff/tchester/2mass/analysis/galaxies/backgrounds/low_density/threshold_pt1.html
Comments and feedback: Tom Chester
Last update: 14 October 1998.