CASB Report December, 2001

Highlights for Division Meeting

· Completed construction of an astrometric mask from the POSS Quick V plate solution residuals.

Community Affairs and Communications

· Several CASB members plan to attend the 199^th AAS Meeting in Washington, January 6-10.

· R. White and V. Laidler prepared a poster for presentation at the January AAS Meeting: "GSC2.2 vs SDSS EDR: Astrometry, Photometry, and Classification."

Project Management and Technical Infrastructure

· Antonio Volpicelli started comparison of Objectivity and MS SQLserver for GALEX/GSC-II

· McLean and Greene continued supporting SDSS planning activities.

MISSION SUPPORT

HST Operations

· Reviewed 7 new Guide Star Problem Reports (GSPRs) this period. Three of these were fine lock failures. The other GSPRs documented the following failures: coarse track failure because the GS was fainter than the FGS threshold; search failure because the GS was a misclassified galaxy; two other GSs that were blends of wide pairs, causing acquisition problems. Filed a Bad GS Alert for each of the GSs.

· Continued planning to port the GetImage software to the Windows NT server.

· Obtaining statistics from the log files concerning how often the webserver has been visited and, more specifically, how often the new GSC2 is being accessed.

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

· Draft HUGS2 report distributed for comments.

NGST Development Studies

DIGITIZED SKY SURVEY

Plate Scanning

· Scanning UKST-IR plates from the current ROE shipment.

GAMMA Microdensitometer Systems

· In early December GAMMA2 developed a problem with shearing between forward and reverse sweeps. Attempted to correct the problem, but have not succeeded. Performed no production scans on GAMMA2 throughout most of the period.

· GAMMA1 scans are marginally within tolerances.

Data Compression/CD Production

· Continued compressing scans of the POSSII-N and UKST-IR surveys.

Archive Maintenance

· Completed migration of the 1st 500 CDROMs in the jukebox to the RaidTec NFS raidarray. All of the images of the DQVS & DSS1 surveys have been migrated as well as the first 359 volumes of the XDSS red surveys. This represents about 300 GB of data.

· A new load of 500 CDROMs is being readied for loading in the jukebox to continue copying.

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

· Continued low-level rationalization of MOD archive.

GSC-II

Plate Processing and COMPASS Database

· Continued processing POSS Quick V plates.

· Completed construction of an astrometric mask from the POSS-I Quick V plate solution residuals.

CALIBRATIONS: General

CALIBRATIONS: Astrometry

CALIBRATIONS: Classification

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

· J. Garcia completed the December CTIO 0.9 m observing run.

GSC-II Science

Appendix – CASB Statistical Summary

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	0	880	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		796	35	831	93	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		417	1	418	45		3
Rescans			34	1	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	804	28	832	93		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	714	53	767	86		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	833	24	857	96		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	728	5	733	82		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	55	57	112	18		3
POSS-II J	897	897	0	897	100		1
POSS-II F	897	897	0	897	100		1
POSS-II N	897	350	0	350	39		4
SERC-J/EJ	894	829	0	829	93		1
South-F	894	894	0	894	100		1
UKST-IR	894	399	1	400	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	0	27	3		4
SERC-J	894	709	0	709	79		1
South-F	894	742	0	742	83		1
UKST-IR	894	2	0	2	0		4
South-SR	116	116	0	116	100		2
South-QV	94	90	0	90	96		2

GSC-II Dataset for V2.2.n delivery (1791 Fields, 3438 plates) (P1)

Item	Count	% done	Notes
Plates available	3438	100
Plates processed	3438	100
DB Load	3438	100

• P1. Defined as all 897 POSS-II fields with 1794 plates, plus the 894 southern

Fields, minus the 72 southern equatorial fields, with 1644 plates.

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	271	0	271	86		1
SERC	894	889	0	889	99		1

GSPC-II REDUCTIONS

Survey	Goal	Previous Month	Current Month	Current Total	% done	Notes	Priority
POSS-I	584	603	1	601	100	P1	1
POSS-II	314	271	7	278	88		1
SERC	894	905	40	945	100		1

• P1. The current totals have been revised from earlier ones.