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31196 Yulong (1997 YL18)
Classification: Main-belt Asteroid          SPK-ID: 2031196
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1508973093368577 6.1031e-08  
a 2.623306220833904 2.2386e-08 AU
q 2.227456370543427 1.6464e-07 AU
i 1.12589241930043 7.7072e-06 deg
node 183.9209439532441 0.00025889 deg
peri 305.4187496493092 0.00026054 deg
M 327.2941611574129 2.5437e-05 deg
tp 2457141.492075023754
(2015-Apr-28.99207502)
0.0001099 JED
period 1551.929221349289
4.25
1.9865e-05
5.439e-08
d
yr
n .2319693418022031 2.9693e-09 deg/d
Q 3.019156071124381 2.5764e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      810  
   data-arc span      8177 days (22.39 yr)  
   first obs. used      1992-09-21  
   last obs. used      2015-02-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54366  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 15:37:41  

Additional Information
 Earth MOID = 1.24279 AU 
 T_jup = 3.387 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO267817  

31196 Yulong           Discovered 1997 Dec. 24 by the Beijing Schmidt CCD Asteroid Program in Xinglong.
Yulong ("Jade dragon") is the only Naxi-language autonomous county in China. This ethnic culture thrives in a region where the Yulong Snow Mountain remains the southernmost glacier in the northern hemisphere, enjoying the fame of the Glacial Museum and the Kingdom of Flora.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080122/MPCPages.arcLast Updated: 2008-03-05

[ show close-approach data ]
Alternate Designations
 1997 YL18 = 1992 SV17 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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