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379 Huenna (A894 AA)
Classification: Main-belt Asteroid          SPK-ID: 2000379
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 109 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1797850075840858 3.704e-08  
a 3.140297892802667 1.0592e-08 au
q 2.575719412328851 1.1746e-07 au
i 1.670187301963094 4.0831e-06 deg
node 171.885748929849 0.00013013 deg
peri 180.4852277249816 0.00013054 deg
M 13.25445811309441 1.1508e-05 deg
tp 2458925.663378201251
(2020-Mar-17.16337820)
6.4843e-05 TDB
period 2032.612998409469
5.56
1.0284e-05
2.816e-08
d
yr
n .1771119245432859 8.9607e-10 deg/d
Q 3.704876373276483 1.2496e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3831  
   data-arc span      46173 days (126.41 yr)  
   first obs. used      1894-01-10  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43371  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:13:03  

Additional Information
 Earth MOID = 1.57033 au 
 Jupiter MOID = 1.73483 au 
 T_jup = 3.185 
[ 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 8.9   n/a MPO492753 IRAS observations used: 18
diameter diameter 84.787 km 1.558 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 14.141 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2010) Minor Planet Bull. 37, 112-118.]
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.046   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.672   0.059 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.89, mean=11.84, max.=19.79) deg.
U-B UB 0.287   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=3.89, mean=11.84, max.=19.79) deg.
Tholen spectral type spec_T B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

379 Huenna (A894 AA)          Discovered 1894-Jan-08 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A894 AA = 1948 XM = A895 DB = A911 BA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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