SKY-MAP.ORG / WIKISKY » survey

SDSS-III cleaner version has been released

admin — Sun, 30 Jan 2011 10:14:05 +0000

We’ve done some cleaning on new SDSS-III survey. New version is now available online. Basically we lowered priorities on drawing “dirty” SDSS frames on main survey, leaving cleaner frames on top. Though all SDSS frames are still available from list of images on starview pages. There still few minor spots left to clean. Next major thing to deal with would be the frame edges that sometimes, especially on bright objects causing significant defects – check out M31 for example. Due to limited resources on our primary two servers, we keep most of the new SDSS-III data on our temporary assigned servers sitting on slower internet link, so expect slower access to the survey until we upgrade our primary servers.

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January 2011 status update

admin — Mon, 24 Jan 2011 19:43:49 +0000

End of 2010 was quite hot for our servers. Visitors traffic grown from usual 300,000 visits per month to over 1,500,000 visits in December alone. Our poor 6 years old servers reached it’s capacities on all ends – processors power, disks space and IO performance. We had to shut down some services in order to keep our servers up.

In other news, Sloan Digital Sky Survey (SDSS) last week released new version – SDSS-III (DR8). It is most significant update since probably DR3. It now covers 1/3 of whole sky. In addition all existing fields has been rebuild with higher quality. The imaging survey contains about a million fields 3 mega pixels each, that totals to 3 Terra pixels of imaging data (compare to 1 Terra pixel of whole sky DSS2 sky survey). We are currently working on adding new SDSS data to our sky map.

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0-zoom images updated

WikiSky — Wed, 24 Dec 2008 05:17:19 +0000

DSS2 all sky image (aitoff projection)

SDSS all sky image (aitoff projection)

RASS3 all sky image (aitoff projection)

GALEX all sky image (aitoff projection)

Astrophoto all sky image (aitoff projection)

IRAS (infrared) all sky image (aitoff projection)

H-Alhpa all sky image (aitoff projection)

We have updated images at top zoom level (0). We already had 0-zoom images for IRAS, H-Alpha, astrophoto and SKY-MAP surveys. New images include DSS2, SDSS, RASS3 and GALEX surveys. Also astrophoto updated with latest images. The top level images represent whole sky in aitoff projection with center in R.A.=12^h, Dec.=0°

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