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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07395611657308983 1.497e-08  
a 2.234251887871545 4.1317e-09 au
q 2.069015294798471 3.3584e-08 au
i 3.073675175823947 4.1031e-07 deg
node 12.34273850576053 8.0968e-06 deg
peri 100.5951941842392 1.2001e-05 deg
M 202.7413147854363 6.899e-06 deg
tp 2459929.354658322766
(2022-Dec-15.85465832)
2.3551e-05 TDB
period 1219.822464714532
3.34
3.3836e-06
9.264e-09
d
yr
n .2951249140048005 8.1864e-10 deg/d
Q 2.399488480944619 4.4372e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3413  
   data-arc span      33900 days (92.81 yr)  
   first obs. used      1928-10-16  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39764  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:27:24  

Additional Information
 Earth MOID = 1.0885 au 
 Jupiter MOID = 2.64876 au 
 T_jup = 3.634 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.13   n/a E2021B10  
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. 2020-October); 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

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