LSSTrelated Slides for Public Lectures

1
LSST-related Slides for Public Lectures

• Contributed by
• Dr. Kirk Borne
• George Mason University
• December 1, 2005

2
Measuring Data Quantities
3
Astronomy data volumes are growing and growing
and

• a few terabytes "yesterday (10,000 CDROMs)
• tens of terabytes "today (100,000 CDROMs)
• 100s of petabytes "tomorrow"
  (within 10-20 years) (1,000,000,000 CDROMs)

4
Why so many Telescopes?
5
Why so many Telescopes?
Because

• Many great astronomical
• discoveries have come
• from inter-comparisons
• of various wavelengths
• Quasars
• Gamma-ray bursts
• Ultraluminous IR galaxies
• X-ray black-hole binaries
• Radio galaxies
• . . .

Overlay
6
Size of a Typical Archived Astronomical Data
Repository

• Size of the archived data for an all-sky survey
  -- 40,000 square degrees is two Trillion pixels
  --
• One band 4 Terabytes
• Multi-wavelength 10-100 Terabytes
• Time dimension 10 Petabytes
• LSST project (10 yrs) 100 Petabytes _at_
  http//www.lsst.org/

All-sky distribution of 526,280,881 stars
from the USNO catalog.
7
Large Synoptic Survey Telescope
Highly ranked in Decadal Review Optimized for
surveys 201 individual CCDs 3-Gigapixel camera 10
square degree field 8.4 meter aperture 24th mag
in 15 sec 30th mag in 10 yrs 30
Tbytes/night Real-time analysis Celestial
Cinematography Simultaneous multiple science
goals 10 years of operation 2012-2022
http//www.lsst.org/
100 Petabytes in 10 years!!!
8
LSST 4-year Design and Development Phasenow
funded by the NSF (started 9/1/05)http//www.lss
t.org/
9
Large Mirror Fabrication(for large telescopes,
such as LSST)
(Univ. of Arizona Mirror Laboratory)
Thats big!