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Data Archive of Asteroid Observations
at MaidanakS. Takahashi and F. Yoshida(NAOJ)
Self-introduction
• Shigeru TAKAHASHI
• 高橋 茂• Nobeyama Radio Observatory
• SE (45m Radio Telescope)• Solar system minor body
(asteroids, comets, etc.)
Observations of Asteroids• Combinations of color and lightcurve
observations• Color
– BVRI– Z band is ideal, but we use I-band filter instead.
• Lightcurve– R band– Determination of Rotational Period (3-10hour)
• 5-7 nights (Sites in Japan)• 2-3 nights (Maidanak)
Observations at Maidanak
• 2003 First visit• 1.5 m Telescope
• 2006 - now• 60cm Telescope
• Obs. of Asteroids• Objects 89 (Including standard stars)
• Nights 190• Frames 21552
Numbers of Nights and Objects
0
20
40
60
80
100
120
2005 2006 2007 2008 2009 2010Year
Num
. of
obje
cts
or
nig
hts
ObjectsNights
Number of Frames
02000400060008000
100001200014000160001800020000
2005 2006 2007 2008 2009 2010Year
Num
ber
Dow JonesFrames
Subprimelending! Lehman
Shock!
A Plan of Archive Database System
•How can we mange a lot of data?•To assist in data processing•Local use (not for open-use)
Database
Data Archive
Original Data
Processed Data
Query
Download
Results of color, rotational period, etc
(832) Karin BVRI…
Ephemeris Data
(832) Karin Position…
SQL+PHP?
We need the internet access !!
UBAI
UBAI NAOJ
NAOJ
Korean ,Russian Car
Korean, Uzbek Airplane
Data Server
iPhone 4
made in Korea
Schedule
•Status
•Completion
•The progress will be reportedat the next Maidanak meeting.
Who knows?
Maybe…
Planning
Summary• We have obtained more than 20000 frames from 2006.
• We are now planning a data archive system for asteroids obtained at the Maidanak.
• The progress will be reported at the next Maidanak meeting.
Asteroids
• Asteroids
• 年齢• Karin Family
• 若い• Space Weathering
•
Web-based search
Query •Search keywords
Object name, Obs. date,Frame type etc.
•Thumbnails
•Download links SQL+PHP?