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JPL Small-Body Database Browser
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46076 (2001 EH4)
Classification: Main-belt Asteroid          SPK-ID: 2046076
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06919266991724016 4.2376e-08  
a 2.769459035945544 1.7565e-08 au
q 2.577832771022046 1.1687e-07 au
i 5.2283929491992 5.2558e-06 deg
node 136.7729230061371 5.4089e-05 deg
peri 277.2727587751391 6.7788e-05 deg
M 166.1912302884833 3.9885e-05 deg
tp 2458223.365038061806
(2018-Apr-14.86503806)
0.00018587 TDB
period 1683.413654331296
4.61
1.6016e-05
4.385e-08
d
yr
n .2138511821344369 2.0345e-09 deg/d
Q 2.961085300869041 1.8781e-08 au
  Orbit Determination Parameters
   # obs. used (total)      658  
   data-arc span      7944 days (21.75 yr)  
   first obs. used      1998-07-27  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:30:57  

Additional Information
 Earth MOID = 1.59561 au 
 Jupiter MOID = 2.27527 au 
 T_jup = 3.328 
[ 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 15.2   n/a MPO436103  
diameter diameter 6.342 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.82 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:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.040   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46076 (2001 EH4)          Discovered 2001-Mar-02 by LONEOS at Anderson Mesa
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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