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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07463040129159301 2.612e-08  
a 2.232905755303808 4.6385e-09 au
q 2.066263102739177 5.7349e-08 au
i 3.073652399943477 3.8404e-06 deg
node 12.37046267848519 5.4457e-05 deg
peri 100.327390240172 6.1722e-05 deg
M 86.05594278651506 2.8284e-05 deg
tp 2458709.171895843931
(2019-Aug-13.67189584)
9.5638e-05 TDB
period 1218.720219664122
3.34
3.7975e-06
1.04e-08
d
yr
n .2953918333275997 9.2044e-10 deg/d
Q 2.399548407868439 4.9847e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3124  
   data-arc span      33529 days (91.80 yr)  
   first obs. used      1928-10-16  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40779  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:30:16  

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

[ show close-approach data ]
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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