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867 Kovacia (A917 DH)
Classification: Main-belt Asteroid          SPK-ID: 2000867
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1269271802503277 1.6036e-08  
a 3.068428193749408 1.0937e-08 au
q 2.67896125531619 4.9331e-08 au
i 5.97064488769401 4.8348e-07 deg
node 46.79853019060543 9.6965e-06 deg
peri 70.36040307618929 1.5404e-05 deg
M 150.2667642719381 1.1262e-05 deg
tp 2458381.030474447959
(2018-Sep-19.53047445)
5.9347e-05 TDB
period 1963.235387599458
5.38
1.0496e-05
2.874e-08
d
yr
n .1833707777854337 9.8038e-10 deg/d
Q 3.457895132182627 1.2325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2877  
   data-arc span      37846 days (103.62 yr)  
   first obs. used      1917-02-26  
   last obs. used      2020-10-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4193  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:33:29  

Additional Information
 Earth MOID = 1.70261 au 
 Jupiter MOID = 1.66749 au 
 T_jup = 3.211 
[ 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 11.57   n/a E2021B10  
diameter diameter 24.113 km 0.439 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.6772 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.092   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

867 Kovacia (A917 DH)          Discovered 1917-Feb-25 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A917 DH = 1942 XF = 1958 WA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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