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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 ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06896283317270017 4.0716e-08  
a 2.770105671337324 1.6407e-08 au
q 2.579071336054138 1.1228e-07 au
i 5.22853877443672 4.2926e-06 deg
node 136.7687871784595 5.1108e-05 deg
peri 277.1356296438751 6.1247e-05 deg
M 209.1115096551161 3.4227e-05 deg
tp 2459906.324199313891
(2022-Nov-22.82419931)
0.00016212 TDB
period 1684.003274021863
4.61
1.4961e-05
4.096e-08
d
yr
n .2137763064677546 1.8993e-09 deg/d
Q 2.96114000662051 1.7538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      717  
   data-arc span      7988 days (21.87 yr)  
   first obs. used      1998-07-27  
   last obs. used      2020-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5396  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 09:46:14  

Additional Information
 Earth MOID = 1.596 au 
 Jupiter MOID = 2.27459 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 15.21   n/a E2021B10  
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. 2020-October); 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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