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JPL Small-Body Database Browser
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12746 Yumeginga (1992 WC1)
Classification: Main-belt Asteroid          SPK-ID: 2012746
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1903525840696835 3.4624e-08  
a 2.238234565635249 6.5903e-09 au
q 1.812180832312494 7.8836e-08 au
i 4.713962225785308 3.8139e-06 deg
node 265.1853537079548 4.4281e-05 deg
peri 81.68902907922548 4.5637e-05 deg
M 14.11356333998527 1.0505e-05 deg
tp 2458552.549736252513
(2019-Mar-10.04973625)
3.5604e-05 TDB
period 1223.085519458433
3.35
5.4019e-06
1.479e-08
d
yr
n .2943375538935359 1.3e-09 deg/d
Q 2.664288298958004 7.8448e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1783  
   data-arc span      23424 days (64.13 yr)  
   first obs. used      1955-10-20  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5013  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:27:52  

Additional Information
 Earth MOID = .811649 au 
 Jupiter MOID = 2.76374 au 
 T_jup = 3.608 
[ 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 13.7   n/a MPO435822  
diameter diameter 4.451 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.224   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

12746 Yumeginga           Discovered 1992 Nov. 16 by M. Yanai and K. Watanabe at Kitami.
The name Yumeginga is derived from the nickname of the Space and Science Museum in Takeo, Saga prefecture. "Yume" means "dream", and "ginga" means "galaxy". Yumeginga will be celebrating its tenth anniversary in July 2009.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 1992 WC1 = 1955 UB1 = 1975 RC = 1995 YT25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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