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3829 Gunma (1988 EM)
Classification: Main-belt Asteroid          SPK-ID: 2003829
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 .1666607132641654 4.7781e-08  
a 2.784733843221115 2.3971e-08 AU
q 2.320628114659023 1.3262e-07 AU
i 7.548942934127444 6.9754e-06 deg
node 189.5531760201362 4.0754e-05 deg
peri 315.0001476682755 4.6347e-05 deg
M 275.6954104252511 2.5137e-05 deg
tp 2457397.986775255458
(2016-Jan-10.48677526)
0.00012174 JED
period 1697.360011047665
4.65
2.1916e-05
6e-08
d
yr
n .212094074125027 2.7386e-09 deg/d
Q 3.248839571783206 2.7966e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1047  
   data-arc span      23723 days (64.95 yr)  
   first obs. used      1949-11-19  
   last obs. used      2014-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51147  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 12:54:22  

Additional Information
 Earth MOID = 1.33995 AU 
 T_jup = 3.299 
[ 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 12.0 mag n/a MPO267722  
diameter diameter 24.33 km 1.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 7
geometric albedo albedo 0.0393   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 7
SMASSII spectral type spec_B Ch   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3829 Gunma           Discovered 1988 Mar. 10 by T. Kojima at Chiyoda.
Named for the prefecture in central Japan that is home to the discoverer. A public astronomical observatory under construction in Gunma will include a 1.5-m telescope, the largest in Japan for public use. This telescope will also be used for astronomical research and discovery.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19961026/MPCPages.arcLast Updated: 2003-09-26

[ show close-approach data ]
Alternate Designations
 1988 EM = 1951 GO1 = 1958 TD = 1979 HX6 = 1981 SU4 = 1981 UY10 = 1984 KG = 1986 UE2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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