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JPL Small-Body Database Browser
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2051 Chang (1976 UC)
Classification: Main-belt Asteroid          SPK-ID: 2002051
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07563986667751905 4.1125e-08  
a 2.840653418737632 1.1326e-08 au
q 2.625786772867279 1.1806e-07 au
i 1.355939520942918 4.4111e-06 deg
node 215.0806063155262 0.00015288 deg
peri 175.5057935400415 0.00015507 deg
M 315.7416629682024 2.452e-05 deg
tp 2458815.490065673600
(2019-Nov-27.99006567)
0.00011895 TDB
period 1748.742244582982
4.79
1.0458e-05
2.863e-08
d
yr
n .2058622424860836 1.2312e-09 deg/d
Q 3.055520064607986 1.2182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2953  
   data-arc span      33288 days (91.14 yr)  
   first obs. used      1928-10-15  
   last obs. used      2019-12-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47388  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:09:42  

Additional Information
 Earth MOID = 1.63027 au 
 Jupiter MOID = 2.29464 au 
 T_jup = 3.305 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.6   n/a MPO502173  
diameter diameter 14.361 km 2.977 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.248   0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2051 Chang (1976 UC)          Discovered 1976-Oct-23 by Harvard College at Agassiz Station
Discovered at Oak Ridge Observatory (until 1981 Harvard College's Agassiz Station). The principal observers are R. E. McCrosky, C.-Y. Shao, G. Schwartz, and J. H. Bulger, with some assistance from others.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1976 UC = 1928 TC = 1935 DD = 1959 EF = 1966 QN = 1971 TA3 = 1971 YH = 1973 AG2 = 1974 HT1 = 1975 NO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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