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108251 (2001 HM47)
Classification: Main-belt Asteroid          SPK-ID: 2108251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3106399643113284 4.8145e-08  
a 2.551249442950349 1.3995e-08 au
q 1.758729407042956 1.2415e-07 au
i 6.358443461594629 6.5256e-06 deg
node 224.0265123084567 3.2851e-05 deg
peri 90.6486336998 3.5838e-05 deg
M 181.0755521061763 1.4361e-05 deg
tp 2459740.267071734885
(2022-Jun-09.76707174)
5.924e-05 TDB
period 1488.427931227119
4.08
1.2247e-05
3.353e-08
d
yr
n .2418659260869968 1.9902e-09 deg/d
Q 3.343769478857741 1.8343e-08 au
  Orbit Determination Parameters
   # obs. used (total)      960  
   data-arc span      8298 days (22.72 yr)  
   first obs. used      1997-05-14  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:04:56  

Additional Information
 Earth MOID = .759524 au 
 Jupiter MOID = 2.0287 au 
 T_jup = 3.363 
[ 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 15.4   n/a MPO320253  
diameter diameter 2.245 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.266   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

108251 (2001 HM47)          Discovered 2001-Apr-18 by NEAT at Haleakala
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 HM47 = 2002 VQ31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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