1. 2008. 2. 19.SDSS-KSG 08 Workshop1 The SDSS DR7 and KIAS SDSS mirror Won-Kee Park ARCSEC, Sejong University 2008 SDSS-KSG Workshop

2. SDSS-KSG 08 Workshop2 2008. 2. 19. SDSS – Current Status DR6 is the current public release  Released on Jun. 2007 DR7.1 is open to SDSS collaboration  Last week “DR7” is planned to be released to public around Oct. 2008  Final release of SDSS II - contains all observational data through the end of the project.

3. SDSS-KSG 08 Workshop3 2008. 2. 19. SDSS DR7 – Release Schedule Old plan  DR7 in 2008 Spring Contains the data observed till 2007 Summer  DR8, the final release of SDSS-II, at the end of 2008 Contains the data till the end of SDSS-II, Jun. 2008

4. SDSS-KSG 08 Workshop4 2008. 2. 19. SDSS DR7 – Release Schedule New plan  DR7.1 to collaboration group only Announced on Feb. 2007  DR7.2(“DR7”), the final release of SDSS II, on Oct. 2008

5. SDSS-KSG 08 Workshop5 2008. 2. 19. SDSS DR7.1 Coverage Imaging  Legacy survey Coverage : 8417 square degree footprint area is same with that of DR6. i.e. No more legacy imaging observation since DR6  SEGUE Coverage : 2400 square degree ~ 1240 square degree more than DR6

6. SDSS-KSG 08 Workshop6 2008. 2. 19. SDSS DR7.1 Coverage Spectroscopy  Legacy survey Coverage : 7470 square degrees Almost all the gaps are now filled in the northern galactic hemisphere Spectra obtained for over ~1,200,000 objects  SEGUE Coverage : 780 square degree ( 125 more) Spectra obtained for over ~150,000 objects

7. SDSS-KSG 08 Workshop7 2008. 2. 19. DR7.1 Legacy survey spectroscopy coverage

8. SDSS-KSG 08 Workshop8 2008. 2. 19. DR7.1 Legacy survey spectroscopy coverage

9. SDSS-KSG 08 Workshop9 2008. 2. 19. DR6 Legacy survey spectroscopy coverage

10. SDSS-KSG 08 Workshop10 2008. 2. 19. DR7.1 Legacy survey imaging coverage

11. SDSS-KSG 08 Workshop11 2008. 2. 19. DR7.1 Legacy survey imaging coverage

12. SDSS-KSG 08 Workshop12 2008. 2. 19.

13. SDSS-KSG 08 Workshop13 2008. 2. 19.

14. SDSS-KSG 08 Workshop14 2008. 2. 19. SDSS DR7.1 - Depth Imaging

15. SDSS-KSG 08 Workshop15 2008. 2. 19.

16. SDSS-KSG 08 Workshop16 2008. 2. 19. SDSS DR7.1 - Depth Spectroscopy

17. SDSS-KSG 08 Workshop17 2008. 2. 19. NYU Value Added Galaxy Catalog A galaxy spectrscopic catalog not very large in size, for easy handling in a computer Based on Princeton Reduction  for photometry & spectroscopy  Results in lower variance in large-scale errors in the calibration in photometry Also offers the matching results with other catalogs  RC3, 2dFGRS, 2MASS..

18. SDSS-KSG 08 Workshop18 2008. 2. 19. NYU Value Added Galaxy Catalog DR7 – based on SDSS DR7.1  Released on Jan. 2008 to SDSS collaboration  Catalogs Includes SDSS Main galaxy samples Contains ~2,600,000 entries Preparation for further application is being done at KIAS

19. SDSS-KSG 08 Workshop19 2008. 2. 19. About SDSS DR7(7.2) Imaging Coverage  … Spectroscopy Coverage  Include the result of observation till spring 2008.  Will fill the gaps completely (hopefully)

20. SDSS-KSG 08 Workshop20 2008. 2. 19. About SDSS DR7(7.2) Improvements in the data processing  Spectroscopy - improvement in flat-fielding & wavelength calibration Affect stellar photometry, but very minor effects for most extragalactic objects  Imaging - improvement in image processing for the crowded field in lower galactic latitute region

21. SDSS-KSG 08 Workshop21 2008. 2. 19. KIAS SDSS Mirror Hardware  Windows 2003 Server machine Xeon dual core, 4GB RAM, 14TB disk space  Linux machine 14TB disk space Quad core, 4GB RAM, 14TB disk space Software  MS-SQL for SDSS database management

22. SDSS-KSG 08 Workshop22 2008. 2. 19. KIAS SDSS Mirror Available data  Catalogs for BESTDR6, and SEGUEDR6 dataset  Raw image - DR5 dataset Data Access  Data can be accessed within KIAS via NFS mount, for example.  Web interface will be available soon

23. SDSS-KSG 08 Workshop23 2008. 2. 19. KIAS SDSS Mirror Web interface (for CAS)  http://sdss.kias.re.kr/ http://sdss.kias.re.kr/  Will offer identical web interfaces as those in SDSS CAS DR6 (http://cas.sdss.org/dr6) Various image tools

24. SDSS-KSG 08 Workshop24 2008. 2. 19. http://sdss.kias.re.kr/dr6/en

25. SDSS-KSG 08 Workshop25 2008. 2. 19. http://sdss.kias.re.kr/dr6/en/to ols/chart/list.asp

26. SDSS-KSG 08 Workshop26 2008. 2. 19. KIAS SDSS Mirror Current Status  DB build for DR6 data query is being done now at KIAS (has been building since last friday…).. And Problem  Access from outside of KIAS is NOT allowed due to internet security problem So?  Access will be allowed after the installation of firewall “soon”  At present, guest account @ KIAS is offered upon request, to access the KIAS host as a gateway to KIAS SDSS mirror

27. SDSS-KSG 08 Workshop27 2008. 2. 19. Thank you