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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07463039996344369 2.6213e-08  
a 2.23290575548971 4.6465e-09 au
q 2.066263105876838 5.7583e-08 au
i 3.07365253868411 3.8458e-06 deg
node 12.3704589275702 5.4726e-05 deg
peri 100.3273934753484 6.1974e-05 deg
M 86.05594307595047 2.829e-05 deg
tp 2458709.171894827714
(2019-Aug-13.67189483)
9.5661e-05 TDB
period 1218.72021981632
3.34
3.8041e-06
1.042e-08
d
yr
n .2953918332907101 9.2202e-10 deg/d
Q 2.399548405102582 4.9932e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3044  
   data-arc span      33481 days (91.67 yr)  
   first obs. used      1928-10-16  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41247  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:28:05  

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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