CASB Report May 2002

 

Highlights for Division Meeting

·         Loading and matching GSC-II data for IR survey plates into the COMPASS database. With 80 percent of these loaded, COMPASS now contains data from over 5000 plates. Matching data from these plates to that of earlier plates will continue for some time.

 

Community Affairs and Communications

 

Project Management and Technical Infrastructure

·         Volpicelli completed a comparison of Objectivity and Microsoft SQLserver and has decided to use MS SQL for GALEX implementation. He developed a draft schema implemented on this platform for future porting of GSC-II.

·         Developed a simple web interface for testing performance of the SQL server. Planning to install this web interface on the Apache web server of CHART.

·         Chris Hanley attended a three-day training course in C++ Development with Objectivity/DB 7.0.  He has closed out all of his WFC3 responsibilities and will be 100% CASB as of June 1.

 

MISSION SUPPORT

HST Operations

·         Reviewed 7 new Guide Star Problem Reports (GSPRs) this period.  Six of these were fine lock failures.  The other problem was in coarse track centering probably due to a double star. Filed a Bad GS Alert for each of the GSs.

·         The HST Observation Planning Team has established the phase2 confirmation chart generation software on SOGS.  CASB will no longer support routine confirmation chart requests.  Assisting in the investigation of a problem found in charts produced in the new environment.

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

 

NGST Development Studies

 

                                      DIGITIZED SKY SURVEY

 

Plate Scanning

·         Continued scanning the POSS-I O survey plates on GAMMA1.

·         Unpacked and rescanned a POSS-II N plate for field 467.  GSC2 processing of the original scan had revealed a subtle scanning defect not seen in other fields.

 
GAMMA Microdensitometer Systems

·         Performed some minor mechanical maintenance on GAMMA 1 to replace a stuck bearing.

·         Adjusted the centering of the laser in the upper optical shelf in GAMMA1.  Normalization of the multi-channel scans had indicated that the beam was being partially clipped.  After re-centering, the normalization across the 5 channels returned to nominal values. Resumed  scanning on GAMMA1.

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

 

Data Compression/CD Production

·         Continued CDROM copying as they are produced to the CASBRAIDTEC. The current total of copied CDROMs is 1293 CDROMS with ~ 840GB of compressed files.

·         Built one CDROM for the POSS-II N survey containing four scans. Included the new scan of XI467 in the MO DISK archive, updated the CDROM archive to include it while altering all pointers from the original scan to the new one. Also processed this scan for the GSC2.

·         Resumed compressing scans of the POSS-I O plates.

·         Continued low-level rationalization of MOD archive.

 

 

GSC-II

 

Plate Processing and COMPASS Database

·         Continued to process the remaining UKST-IR plates, particularly those in the southern Milky Way, in the VMS production pipeline.

·         Resumed database production tasks of loading and matching the IR surveys.  To date, loaded 784 POSSII-N plates and matched 92 and loaded 677 UKST-IR plates and matched 668. The GSC2 database now contains 5057 plates with 4192 matched.

·         A disk failure in one of the COMPASS database RAID sets caused several weeks of downtime.  CISD installed a replacement disk and rebuilt the RAID set without any data loss.  Also performed a firmware upgrade on the replaced RAID controller card reported last month, as well as a software upgrade to the flexible array storage tool software.

·         Performed some simple QA to ensure the integrity of the database prior to resuming operations.

·         Completed a full image backup of all the COMPASS database disks.  Also performed backups on all the software and metadata disks.

·         The current size of the GSC2 database is now just under 2 TB.

 

SOFTWARE

·         Began the backup of CASB software currently on the Chart server to the Compass server.

·         Installed Python bindings for the Objectivity/DB 7.0.

·         Continued development of a program to access the current GSC2 database and obtain information needed to create MCO files.  The MCO files will then be FTPed to a  VMS system for reprocessing by existing GSC2 software.

·         Wrote an idl routine to analyze statistics in an exported GSC2 region based on various elements of the processing status flag.

 

 

CALIBRATIONS: Astrometry

 
CALIBRATIONS: Classification 

 

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

 

GSC-II Science

 


 

Appendix – CASB Statistical Summary

 

 

 

PLATE PROCESSING STATUS

Survey

μ

Prefix

Total

SCANS

Month/Total/%

COMPRESS   Month/Total/%

PROCESS Month/Total/%

DBLOAD Month/Total/%
DBMATCH Month/Total/%
Notes

POSS-II J

15

XJ

897

Completed

Completed

Completed

Completed

Completed

S4

POSS-II F

15

XP

897

Completed

Completed

Completed

Completed

Completed

S4

POSS-II N

15

XI

897

0/882/98

4/872/97

1/872/97

0/784/87

72/92/10

S4

AAO-SES

15

XS

606

Completed

Completed

Completed

0/527/87

0/527/87

S4

PPARC-ER

15

ER

288

Completed

Completed

Completed

0/213/74

0/213/74

 

AAO-SR

15

GR

118

Completed

Completed

Completed

0/116/98

0/116/98

S2

UKST-SR

15

RS

112

0/50/45

0/0/0

0/0/0

0/0/0

0/0/0

S5

UKST-IR

15

IS

894

0/862/96

0/862/96

0/862/96

63/677/76

63/668/75

S6

SERC-J/EJ

25

S

894

Completed

Completed

0/365/41

0/365/41

0/365/41

 

SERC-J/EJ rescans

15

S

447

0/443/99

 

0/99/22

0/344/77

0/344/77

0/344/77

S1

SERC-QV

15

XV

94

Completed

Completed

Completed

0/90/96

0/90/96

 

POSS-I E

25

XE

807

Completed

Completed

Completed

0/127/16

0/0/0

 

POSS-I E

15

XE

129

Completed

Completed

Completed

0/28/22

0/0/0

S3

POSS-I O

15

XO

936

20/478/51

15/143/15

0/5/0

0/3/0

0/0/0

 

POSS-QV

25

N

611

Completed

Completed

0/254/42

0/2/0

0/0/0

 

Special

25

XX

4

Completed

Completed

0/0/0

0/0/0

0/0/0

 

Black Birch

25

XB

69

Completed

0/0/0

0/0/0

0/0/0

0/0/0

 

GPO Astrgph

25

XG

49

Completed

0/0/0

0/0/0

0/0/0

0/0/0

 

 

 

 

 

GSC-II RETRIEVALS for last 6 months

 

Dec 2001:                     169721                                                                          
Jan 2002:                     444834 
Feb 2002:                     290727 

Mar 2002:                     126745

Apr 2002:                      53387

May 2002:                      62853