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6138 (1991 JH1)
Classification: Main-belt Asteroid          SPK-ID: 2006138
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1931724048340372 4.5248e-08  
a 2.344034367608362 1.1102e-08 AU
q 1.891231611803823 1.0602e-07 AU
i 2.667233590892438 6.5746e-06 deg
node 147.7179072861773 0.00010532 deg
peri 84.41283230428431 0.00010714 deg
M 149.1810229085246 2.081e-05 deg
tp 2456257.305368387423
(2012-Nov-25.80536839)
7.4068e-05 JED
period 1310.824014797352
3.59
9.3122e-06
2.55e-08
d
yr
n .2746364088055364 1.951e-09 deg/d
Q 2.7968371234129 1.3246e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1165  
   data-arc span      22972 days (62.89 yr)  
   first obs. used      1951-02-10  
   last obs. used      2014-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52971  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-21 23:11:11  

Additional Information
 Earth MOID = .882933 AU 
 T_jup = 3.535 
[ 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 13.7 mag n/a MPO267732  

6138 (1991 JH1)          Discovered 1991-May-14 by Otomo and Muramatsu at Kiyosato
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1991 JH1 = 1951 CQ = 1980 FG11 = 1987 DT 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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