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214080 (2004 HH31)
Classification: Main-belt Asteroid          SPK-ID: 2214080
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1921989266013408 4.0606e-08  
a 3.15563332844838 2.7669e-08 au
q 2.549123989973185 1.3139e-07 au
i 10.86944298320949 4.6962e-06 deg
node 138.4367476979992 3.2391e-05 deg
peri 129.0121111468627 3.6727e-05 deg
M 346.3423129132797 1.4898e-05 deg
tp 2459474.178867593974
(2021-Sep-16.67886759)
8.4562e-05 TDB
period 2047.520356577874
5.61
2.6929e-05
7.373e-08
d
yr
n .1758224277690145 2.3124e-09 deg/d
Q 3.762142666923575 3.2987e-08 au
  Orbit Determination Parameters
   # obs. used (total)      332  
   data-arc span      7559 days (20.70 yr)  
   first obs. used      2000-10-02  
   last obs. used      2021-06-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57887  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 03:31:01  

Additional Information
 Earth MOID = 1.5498 au 
 Jupiter MOID = 1.49966 au 
 T_jup = 3.150 
[ 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 15.78   n/a MPCxxxxx  
diameter diameter 4.471 km 0.241 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

214080 (2004 HH31)          Discovered 2004-Apr-16 by LONEOS at Anderson Mesa
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2004 HH31 = 2009 BG102 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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