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JPL Small-Body Database Browser
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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 107 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1804136098606534 3.7342e-08  
a 3.143382149680087 1.1236e-08 au
q 2.576273228884761 1.1829e-07 au
i 1.669675721424952 4.1144e-06 deg
node 171.9096989692892 0.00013065 deg
peri 180.260864702966 0.00013107 deg
M 302.640602415325 1.1431e-05 deg
tp 2458924.836840341365
(2020-Mar-16.33684034)
6.5304e-05 TDB
period 2035.608242756145
5.57
1.0914e-05
2.988e-08
d
yr
n .1768513176742555 9.482e-10 deg/d
Q 3.710491070475412 1.3263e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3744  
   data-arc span      45949 days (125.80 yr)  
   first obs. used      1894-01-10  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43735  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 01:52:46  

Additional Information
 Earth MOID = 1.56993 au 
 Jupiter MOID = 1.72522 au 
 T_jup = 3.184 
[ 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 8.87   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 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-January); 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

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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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