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JPL Small-Body Database Browser
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47940 (2000 HE59)
Classification: Main-belt Asteroid          SPK-ID: 2047940
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07871921254114847 4.0816e-08  
a 3.142069973378602 2.1944e-08 au
q 2.894728699325051 1.3617e-07 au
i 15.35725288896136 5.149e-06 deg
node 227.6435683601397 1.5954e-05 deg
peri 240.3472264804458 3.7819e-05 deg
M 245.5126696239443 3.5754e-05 deg
tp 2459247.459558004419
(2021-Feb-01.95955800)
0.00020483 TDB
period 2034.333756552519
5.57
2.1311e-05
5.835e-08
d
yr
n .1769621129475203 1.8538e-09 deg/d
Q 3.389411247432153 2.3671e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1306  
   data-arc span      8065 days (22.08 yr)  
   first obs. used      1997-10-29  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47199  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:08:12  

Additional Information
 Earth MOID = 1.94508 au 
 Jupiter MOID = 1.93001 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 13.3   n/a MPO502476  
diameter diameter 13.899 km 0.225 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.332 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.053   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

47940 (2000 HE59)          Discovered 2000-Apr-25 by LONEOS at Anderson Mesa
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 HE59 = 1975 XE4 = 1997 WY55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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