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5131 (1990 BG)
Classification: Apollo [NEO]          SPK-ID: 2005131
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 138 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5692316129638126 7.0679e-08  
a 1.486098505060526 5.3288e-09 AU
q .640164256001812 1.0502e-07 AU
i 36.42553151860903 9.244e-06 deg
node 110.3974291714155 8.4257e-06 deg
peri 135.8242370187486 9.881e-06 deg
M 199.546852012964 9.0566e-06 deg
tp 2457295.427700114172
(2015-Sep-29.92770011)
1.767e-05 JED
period 661.713237621741
1.81
3.5591e-06
9.744e-09
d
yr
n .5440423124885239 2.9262e-09 deg/d
Q 2.332032754119239 8.3621e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      13250 days (36.28 yr)  
   first obs. used      1978-12-06  
   last obs. used      2015-03-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60581  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:20:42  

Additional Information
 Earth MOID = .273218 AU 
 T_jup = 4.208 
[ 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 14.7 mag n/a MPO319149  
rotation period rot_per 20.93 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 [Result based on less than full coverage, so that the period may be wrong by 30 percent or so.]
SMASSII spectral type spec_B S   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)

5131 (1990 BG)          Discovered 1990-Jan-21 by Helin and Roman at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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