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JPL Small-Body Database Browser
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1225 Ariane (1930 HK)
Classification: Main-belt Asteroid          SPK-ID: 2001225
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07481762951511194 3.3503e-08  
a 2.233344254723487 5.5246e-09 au
q 2.066250731693882 7.5854e-08 au
i 3.07344134699879 4.0166e-06 deg
node 12.37762529239944 6.9244e-05 deg
peri 100.4327248174807 7.5231e-05 deg
M 327.8074509945646 2.926e-05 deg
tp 2458709.514633537419
(2019-Aug-14.01463354)
9.9175e-05 TDB
period 1219.079236839698
3.34
4.5234e-06
1.238e-08
d
yr
n .2953048408348357 1.0957e-09 deg/d
Q 2.400437777753093 5.9379e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2585  
   data-arc span      33253 days (91.04 yr)  
   first obs. used      1928-10-16  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43139  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:02:42  

Additional Information
 Earth MOID = 1.08563 au 
 Jupiter MOID = 2.65159 au 
 T_jup = 3.635 
[ 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 12.1   n/a MPO452176  
diameter diameter 9.194 km 0.091 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 5.5068 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Ditteon, R.; Tollefson, E.; Twarek, A. (2003) Minor Planet Bull. 30, 76-77.]
[Goeden, C.J. (2004) Minor Planet Bull. 31, 11.]
[Pray, D.P. (2004) Minor Planet Bull. 31, 6-8.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.302   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1225 Ariane (1930 HK)          Discovered 1930-Apr-23 by Van Gent, H. at Johannesburg (LS)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1930 HK = 1928 UD = 1958 TB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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