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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07463040300112389 3.0474e-08  
a 2.232905755034161 5.1193e-09 au
q 2.066263098672433 6.8278e-08 au
i 3.073652380921041 3.8865e-06 deg
node 12.3703973244942 6.5013e-05 deg
peri 100.3274539855669 7.1295e-05 deg
M 86.05594454814505 2.8604e-05 deg
tp 2458709.171889932997
(2019-Aug-13.67188993)		 9.6667e-05 TDB
period 1218.720219443362
3.34		 4.1912e-06
1.147e-08		 d
yr
n .2953918333811073 1.0159e-09 deg/d
Q 2.399548411395889 5.5014e-09 au
   Orbit Determination Parameters
   # obs. used (total)      2739  
   data-arc span      33347 days (91.30 yr)  
   first obs. used      1928-10-16  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:48:49  

Additional Information
 Earth MOID = 1.08538 au 
 Jupiter MOID = 2.65102 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-August); 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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