CASB Report for
October, 2000
·
Submitted the
paper, “GSPC2.1: First Release of an All-Sky Set of (B)-V-R Photometric
Calibrators for Schmidt surveys,” to Astronomy and Astrophysics.
·
A very
productive annual GSC-II meeting was held 19-20 October.
· Continued review and design of the CASB WWW pages.
· Supported several tours of the plate vault.
·
McLean and
Greene met with the SDSS groups at FNAL and JHU to discuss the SDSS Science
Archive. Continuing to pursue a possible partnership with SDSS.
·
Met with
visitor from GALEX about timetable for definition of science archive.
·
Twenty-two
persons participated in the 6th annual GSC-II meeting at Stevensville,
MD. Highlights of the meeting included presentations and discussions of the
following:
· Reviewed one Guide Star Problem Report (GSPR) this period. The GS, which is in a crowded area in the outer region of the Omega Centauri globular cluster, was fainter than expected. In the DSS-I image it appeared blended and slightly displaced from the GSC-I position. Since this is the third GSPR in this region, recommended that observers use only the special ZZZR catalog for Phase 2. A Bad GS Alert was filed for the GS.
· Completed writing the "engine," where all the calculations are done, of the Bright Object Checker. Currently testing the engine with Jesse Doggett and Ron Downes, who is providing scientific feedback.
· Will soon begin writing the code, with Doggett, behind the Graphical User Interface (GUI) with which the user will run the Bright Object Checker. Have set a mid-January deadline for this GUI.
·
Completed
scanning the last regular shipment of POSSII-N plates.
·
Scanned
POSSI-O plates until the arrival of another ROE shipment containing UKST-IR
plates and plates for the last eight fields the AAO-SES (red) survey.
·
Scanned all
these SES plates and started scanning the UKST-IR plates.
·
GAMMA1
continued to perform nominally during the previous month.
·
GAMMA2
continues to suffer from higher then acceptable shearing. Some simple mechanical adjustments failed to
clear up this problem.
·
Continued
compressing scans of the POSSII-N and UKST-IR surveys.
· Continued writing MODs of UKST-IR scans.
·
Disk space
problems slowed migration of the DSS1, DQVS, and XDSS compressed files from
cd-rom to hard disks on CHART.
·
No progress
reported in investigation of a GETIMAGE failure with the DSS-I, first reported
by the NAOJ Astronomical Data Analysis Center.
·
Continued with
recalibration/load/matching of GSC 2.2 plates (two bandpasses, all sky). Since Oct 1, 2000, 193 new fields have been
recalibrated, loaded, and matched, bringing the total number of plates loaded
into COMPASS up to roughly 2700.
·
Issues concerning
disk space and disk fragmentation have resulted in a temporary halt to COMPASS
plate loading. Database administrative
tasks are being executed to clean up the database disks and should lead to
improved efficiency.
·
Tested
pipeline procedural modifications to improve the efficiency of the processing
pipeline. These changes should decrease
the turnover time for files in the pipeline processing and should allow an
increase in production.
· Worked with OATo colleague on resolving remaining problems with CIQA software
· Held “delivery readiness” discussions between OATo staff and the STScI calibrations and database teams.
· The calibrations team has developed a test plan and identified a large common data set to perform quality assurance and characterization of the catalog. Tests include: analyses of DID and GSH header files to look for systematic trends and identify problem plate populations for further study; internal comparisons of objects from overlapping OOP files; and comparisons to a specific set of external catalogs.
· Improving the Filter task to further remove local small scale systematic in positions. By studying the residuals between overlapping plates some improvements to the task have been found. However, it appears that the Tycho II catalog may not be dense enough to adequately remove the small-scale systematics. Therefore work has begun on using the SPM catalog.
· Using the residuals from overlapping plates and the results of the CIQA/QA2 plates, discovered the existence of a magnitude dependence. Performing more experiments to quantify the form of this effect.
· Collaborated with visiting OATo staff on testing the new decision trees for bright objects reported last month against external catalogs. Test results are quite promising. A plan for further testing has been outlined.
· Collaborated with OATo staff to design algorithms for multi-plate classification voting, and for assigning classification reliabilities, for the GSC2.2 export catalog release. Tests to verify the voting assumptions and to further determine parameters for the reliability have been designed.
CALIBRATIONS: Photometry (GSPC-II and DSS-I and -II)
·
Submitted the
paper, “GSPC2.1: First Release of an All-Sky Set of (B)-V-R Photometric
Calibrators for Schmidt surveys,” to Astronomy and Astrophysics.
·
This
publication describes the GSPC2 program, data reduction, database organization,
and the quality of the photometric sequences.
· Still investigating the proper motion of the black hole companion XTEJ1118. Making some tests and matching plates that have the same bandpass to evaluate the result.
Survey |
Goal |
Previous Month |
Current Month |
Current Total |
% done |
Notes
|
Priority |
|
POSS-II
J |
897 |
901 |
1 |
902 |
100 |
S4 |
1 |
|
POSS-II
F |
897 |
910 |
0 |
910 |
100 |
S4 |
1 |
|
POSS-II
N |
897 |
857 |
16 |
873 |
97 |
S4 |
1 |
|
AAO-SES |
606 |
606 |
8 |
614 |
100 |
S4 |
1 |
|
PPARC-ER |
288 |
270 |
0 |
270 |
94 |
|
1 |
|
AAO-SR |
118 |
118 |
0 |
118 |
100 |
S2 |
- |
|
UKST-SR
|
112 |
50 |
0 |
50 |
45 |
S5 |
3 |
|
UKST-IR |
894 |
561 |
6 |
567 |
63 |
|
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 |
177 |
12 |
189 |
20 |
|
3 |
|
Rescans |
|
24 |
9 |
33 |
|
|
|
|
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 |
339 |
20 |
359 |
40 |
|
3 |
AAO SES |
606 |
592 |
0 |
592 |
98 |
|
1 |
PPARC ER |
288 |
270 |
0 |
270 |
94 |
|
1 |
UKST-IR |
894 |
100 |
88 |
188 |
21 |
|
3 |
Survey |
Goal |
Previous Month |
Current Month |
Current Total |
% done |
Notes
|
Priority |
POSS-II
J |
897 |
902 |
0 |
902 |
100 |
|
4 |
POSS-II
F |
897 |
878 |
0 |
878 |
98 |
|
3 |
POSS-II
N |
897 |
289 |
76 |
365 |
41 |
|
4 |
AAO-SES |
606 |
587 |
0 |
587 |
97 |
|
3 |
PPARC-ER |
288 |
250 |
0 |
250 |
87 |
|
3 |
AAO-SR |
109 |
73 |
0 |
73 |
67 |
|
4 |
UKST-IR |
894 |
507 |
49 |
546 |
61 |
|
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-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 |
917 |
14 |
931 |
99 |
|
3 |
POSS-QV |
613 |
2 |
0 |
2 |
0 |
|
3 |
POSS-II
J |
897 |
887 |
0 |
887 |
99 |
|
1 |
POSS-II
F |
897 |
897 |
0 |
897 |
100 |
|
1 |
POSS-II
N |
897 |
44 |
0 |
44 |
5 |
|
4 |
SERC-J/EJ |
894 |
822 |
0 |
822 |
92 |
|
1 |
South-F |
894 |
828 |
1 |
829 |
93 |
|
1 |
UKST-IR |
894 |
2 |
0 |
2 |
0 |
|
4 |
South-SR |
118 |
110 |
0 |
110 |
93 |
|
2 |
South-QV |
94 |
94 |
0 |
94 |
100 |
|
2 |
GSC-II COMPASS DATABASE LOAD
Survey |
Goal |
Previous Month |
Current Month |
Current Total |
% done |
Notes
|
Priority |
POSS-I
E |
936 |
5 |
18 |
23 |
2 |
|
3 |
POSS-QV |
613 |
2 |
0 |
2 |
0 |
|
3 |
POSS-II
J |
897 |
689 |
27 |
716 |
80 |
|
1 |
POSS-II
F |
897 |
794 |
15 |
809 |
90 |
|
1 |
POSS-II
N |
897 |
26 |
1 |
27 |
3 |
|
4 |
SERC-J |
894 |
301 |
119 |
420 |
47 |
|
1 |
South-F |
894 |
518 |
87 |
605 |
68 |
|
1 |
UKST-IR |
894 |
2 |
0 |
2 |
0 |
|
4 |
South-SR |
109 |
15 |
0 |
15 |
14 |
|
2 |
South-QV |
94 |
77 |
0 |
77 |
82 |
|
2 |
GSC-II Dataset for V2.1.n delivery (1791
Fields, 3438 plates) (P1)
Item |
Count |
% done |
Notes |
Plates available |
3417 |
99 |
|
Plates
processed |
3355 |
98 |
|
DB
Load |
2698 |
78 |
|
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 |
559 |
0 |
559 |
96 |
P1 |
1 |
POSS-II |
314 |
169 |
0 |
169 |
54 |
|
1 |
SERC |
894 |
868 |
0 |
868 |
97 |
|
1 |
GSPC-II REDUCTIONS
Survey |
Goal |
Previous Month |
Current Month |
Current Total |
% done |
Notes
|
Priority |
POSS-I |
584 |
559 |
0 |
559 |
99 |
P1 |
1 |
POSS-II |
314 |
169 |
0 |
169 |
54 |
|
1 |
SERC |
894 |
868 |
0 |
868 |
97 |
|
1 |