CASB Report for February, 2002

CASB Report February 2002

Highlights for Division Meeting

· Achieved a high production rate this month for GSC2 processing of both the northern and southern infrared plates scans; over half are now processed.

· Began database loading of infrared plates.

Community Affairs and Communications

Project Management and Technical Infrastructure

· Volpicelli continued comparison of Objectivity and MS SQLserver for GALEX/GSC-II.

· McLean and Greene continued supporting SDSS planning activities.

· Hiring of replacement software developer in progress (offer made)

MISSION SUPPORT

HST Operations

· Reviewed 13 new Guide Star Problem Reports (GSPRs) this period. Eleven of these were fine lock or reacquisition failures. One of the other GSPRs documented a GS that was fainter than expected. The remaining GS was a misclassified galaxy. Filed a Bad GS Alert for each of the GSs.

· Supported investigation of bright object protection for a STIS MAMMA imaging program in the extremely complex sky region of the SN1987A llght echo.

· To save disk space and with concurrence from the Science Planning and Scheduling Team, deleted all remaining confirmation charts for the still-active Cycle 9 SNAPs.

· Continued the port of GetImage to the Windows NT server.

· Continued to obtain statistics of webserver visits, specifically, accessing of GSC2.

· Occasionally answering questions from the APT team about the Bright Object Tool.

· Analyzing responses to the draft HUGS2 report.

NGST Development Studies

· Reviewing draft CSA FGS concept design

DIGITIZED SKY SURVEY

Plate Scanning

· Completed scanning UKST-IR plates from the current ROE shipment.

· Scanned the last two available POSSII-N plates from Palomar.

· Resumed scanning the POSS-I O survey on GAMMA1.

GAMMA Microdensitometer Systems

· GAMMA2 is still down; performed no production scans on GAMMA2 throughout the period.

Data Compression/CD Production

· Completed the CD-ROM containing the compressed scans of the last four available POSS-II-N plates.

· Completed migration of all available POSSII-N XDSS CDROMs to the RaidTec NFS raidarray.

· A total of 993 CDROMs with 645GB of compressed files has been transferred.

· Started migration of the UKST-IR XDSS CDROMs.

· Worked on two archive help desk requests for help/information.

· Continued low-level rationalization of MOD archive.

GSC-II

Plate Processing and COMPASS Database

· Heavily concentrated resources on processing the infrared plate scans in both the north and south. Achieved a high production rate this month; over half of these plates are now processed.

· Rebuilt the LoadOOP database task. Updated the load and match daemon script to reflect the changes from the COMPASS upgrade. Started the load and match process and began ingest of infrared plates in both database loading and matching. Performed some minimal QA to ensure proper loading of these plates into COMPASS.

· Installed the CIQA tools on COMPASS for GSC2 QA.

· Investigated problems with GSC2 and CASB web services. Blocked an IP address that was accessing our web site and creating errors. The errors generated from this request overloaded our server and denied access to others.

· The IP address that was blocked originated from an anonymous Internet access provider. It is only a guess, but this incident appears to be another case of someone trying to download the entire unreleased GSC2.2.1 catalog.

CALIBRATIONS: Astrometry

CALIBRATIONS: Classification

· Obtained pre-release version of the Millennium Galaxy Catalog (Liske et al 2002). This catalog contains nearly 9000 hand-classified galaxies in the magnitude range 16 < B < 20, over an area near the north galactic pole that covers several GSC2 plates. This will be a terrific resource for analysis of the GSC2 classification at the faint end. A first look at the data matched to the uncut GSC2.2.1 indicates ~95% accuracy for MGC galaxies at B=18 and fainter.

· Analysis of a strip of 10 GSC2 HTM regions from |b|=90 to |b|=0 indicates that ~90% of stars have unanimous classifications down to |b|=30. Although the percentage falls as we approach the plane, the population rises even faster, so that the absolute number of unanimous stars is even higher in the plane than out of it. We found from the SDSS comparison (presented at the AAS last month) that unanimous classifications are extremely reliable in the comparison magnitude range (15.5 < F < 18.5). Thus, this finding that most stars in the catalog appear to have unanimous classifications is significant in terms of the functional use of the GSC2 to provide reliably classified guide stars. See http://www-gsss.stsci.edu/gsc/gsc2/calibrations/comparisons/calibrations_comparisons.htm.

CALIBRATIONS: Photometry (GSPC-II and DSS-I and -II)

· (Garcia Yus, CTIO.) Completed reduction of photometry from the latest CTIO run (December). The data include 76 new and/or reobserved sequences: 72 southern and 4 POSS-II fields. Additionally observed five fields with longer exposure times. Now the data need to be ingested into the pipeline catalog.

GSC-II Science

Appendix – CASB Statistical Summary

GSC-II RETRIEVALS for last 3 months

Dec 2001:                     169721

Jan 2002:                     444834

Feb 2002:                     290727

SCANNING

*Survey*	*Goal*	*Previous Month*	*Current Month*	*Current Total*	% *done*	Notes	*Priority*
*POSS-II J*	897	902	0	902	100	S4	1
*POSS-II F*	897	910	0	910	100	S4	1
*POSS-II N*	897	880	2	882	98	S4	1
*AAO-SES*	606	614	0	614	100	S4	1
*PPARC-ER*	288	288	0	288	100		1
*AAO-SR*	118	118	0	118	100	S2	-
*UKST-SR*	112	50	0	50	45	S5	3
*UKST-IR*	894	846	16	862	96	S6	2
*SERC-J/EJ*	447	443	0	443	99	S1	2
*POSS-I E*	106	106	0	106	100	S3	3
*POSS-I O*	936	418	10	428	46		3
*Rescans*		35	0	35

S1. Low priority program to rescan crowded fields (|b|<30) originally done with 25 mu scans. The total number of S scans includes the 2 for the LMC and SMC plus 4 others with |b|>30 performed for research or STIS BOP support. Another 30 plates have been added to replace those that were repaired before inclusion in DSS-I.
S2. This survey is an on-going low level-of-effort collaboration between the STScI and the AAO.
S3. Low priority scans of the POSS-I -24 deg and -30 deg zones.
S4. Includes recent scans of better grade plates.
S5. Low priority scans of the moderately short exposure R plates from the SERC I/SR Atlas of the Milky Way.
S6. Includes UKST-IR plates from the SERC I/SR Atlas of the Milky Way and the Magellanic Clouds (1978-1985) and the I-Survey of the Southern Sky (1990-xx).

COMPRESSION

*Survey*	*Goal*	*Previous Month*	*Current Month*	*Current Total*	*% done*	Notes	*Priority*
*POSS-II J*	897	895	0	897	100		2
*POSS-II F*	897	897	0	897	100		1
*POSS-II N*	897	868	4	872	97		3
*AAO SES*	606	606	0	606	100		1
*PPARC ER*	288	288	0	288	100		1
*AAO-SR*	118	118	0	118	100		3
*UKST-IR*	894	767	17	784	88		3
*POSS-I O*	936	101	0	101	11		3

MO DISK ARCHIVING

*Survey*	*Goal*	*Previous Month*	*Current Month*	*Current Total*	*% done*	Notes	*Priority*
*POSS-II J*	897	902	0	902	100		4
*POSS-II F*	897	900	0	900	100		3
*POSS-II N*	897	871	4	875	98		4
*AAO-SES*	606	613	0	613	100		3
*PPARC-ER*	288	288	0	288	100		3
*AAO-SR*	109	116	0	116	100		4
*UKST-IR*	894	742	45	787	88		5
*SERC-J/EJ*	894	892	0	892	100
*SERC-J/REPAIR*	48	48	0	48	100
*SERC-J/15mu*	449	449	0	449	100		5
*POSS-I E*	933	928	0	928	99		2
*POSS-I REPAIR*	198	198	0	198	100		2
*POSS-I O*	936	120	0	120	13		5
*POSS-QV*	613	613	0	613	100		-
*SERC-QV*	94	94	0	94	100		-
*GPO/BB*	88	88	0	88	100		-

GSC-II PLATE PROCESSING

*Survey*	*Goal*	*Previous Month*	*Current Month*	*Current Total*	*% done*	Notes	*Priority*
*POSS-I E*	936	931	0	931	99		3
*POSS-QV*	611	176	78	254	42		3
*POSS-II J*	897	897	0	897	100		1
*POSS-II F*	897	897	0	897	100		1
*POSS-II N*	897	381	123	504	56		4
*SERC-J/EJ*	894	829	0	829	93		1
*South-F*	894	894	0	894	100		1
*UKST-IR*	894	278	128	406	45		4
*South-SR*	116	116	0	116	100		2
*South-QV*	94	94	0	94	100		2
*POSS-I O*	936	17	0	17	2		5

GSC-II COMPASS DATABASE LOAD (no.objects = 998,402,801)

*Survey*	*Goal*	*Previous Month*	*Current Month*	*Current Total*	*% done*	Notes	*Priority*
*POSS-I E*	936	23	0	23	2		3
*POSS-QV*	613	2	0	2	0		3
*POSS-II J*	897	897	0	897	100		1
*POSS-II F*	897	899	0	899	100		1
*POSS-II N*	897	27	14	41	5		4
*SERC-J*	894	709	0	709	79		1
*South-F*	894	742	0	742	83		1
*UKST-IR*	894	2	72	74	8		4
*South-SR*	116	116	0	116	100		2
*South-QV*	94	90	0	90	96		2

GSPC-II OBSERVATIONS

*Survey*	*Goal*	*Previous Month*	*Current Month*	*Current Total*	*% done*	Notes	*Priority*
*POSS-I*	584	603	0	603	100	P1	1
*POSS-II*	314	282	0	282	90		1
*SERC*	894	1017	0	1017	100		1

GSPC-II REDUCTIONS

*Survey*	*Goal*	*Previous Month*	*Current Month*	*Current Total*	*% done*	Notes	*Priority*
*POSS-I*	584	603	0	603	100	P1	1
*POSS-II*	314	282	0	282	90		1
*SERC*	894	1017	0	1017	100		1

Highlights for Division Meeting

Community Affairs and Communications

Project Management and Technical Infrastructure

MISSION SUPPORT

HST Operations

NGST Development Studies

DIGITIZED SKY SURVEY

Plate Scanning

GAMMA Microdensitometer Systems

Data Compression/CD Production

GSC-II

Plate Processing and COMPASS Database

CALIBRATIONS: Astrometry

CALIBRATIONS: Classification

GSC-II Science

Appendix – CASB Statistical Summary

GSC-II RETRIEVALS for last 3 months

SCANNING

Notes

COMPRESSION

Notes

MO DISK ARCHIVING

Notes

Notes

Notes

Notes

Notes