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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07880168902752992 4.0604e-08  
a 3.143355275284425 2.1432e-08 au
q 2.895653570378416 1.3541e-07 au
i 15.35520938933071 5.1171e-06 deg
node 227.6468668275103 1.5704e-05 deg
peri 240.0500476688247 3.7056e-05 deg
M 316.5749796188957 3.5061e-05 deg
tp 2459246.042210592547
(2021-Jan-31.54221059)
0.00019923 TDB
period 2035.582137614392
5.57
2.0819e-05
5.7e-08
d
yr
n .1768535856882215 1.8088e-09 deg/d
Q 3.391056980190434 2.3121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1389  
   data-arc span      8403 days (23.01 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48013  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:39:42  

Additional Information
 Earth MOID = 1.94569 au 
 Jupiter MOID = 1.92907 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-August); 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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