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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1275674694013813 2.9776e-08  
a 3.066267415835423 1.1488e-08 au
q 2.675111441089385 8.9891e-08 au
i 5.973829288972002 4.1643e-06 deg
node 46.81991660080396 3.4125e-05 deg
peri 70.13532100042282 3.8241e-05 deg
M 113.7669466112506 1.7239e-05 deg
tp 2458380.734966392046
(2018-Sep-19.23496639)
9.2875e-05 TDB
period 1961.161996034438
5.37
1.1022e-05
3.018e-08
d
yr
n .183564642149877 1.0316e-09 deg/d
Q 3.457423390581461 1.2954e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2705  
   data-arc span      37732 days (103.30 yr)  
   first obs. used      1917-02-26  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42689  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:22:00  

Additional Information
 Earth MOID = 1.69887 au 
 Jupiter MOID = 1.66948 au 
 T_jup = 3.211 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456513.5 (2013-Aug-09.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1294967234022618 2.9725e-08  
q 2.668186642174878 9.0154e-08 au
tp 2456418.440285279499
(2013-May-05.94028528)
8.9098e-05 TDB
node 46.84849191218064 3.411e-05 deg
peri 69.79312092472863 3.8118e-05 deg
i 5.976542987366273 4.166e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2705  
   data-arc span      37732 days (103.30 yr)  
   first obs. used      1917-02-26  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42689  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:22:00  

Additional Information
 Jupiter MOID = 1.66948 au 
 T_jup = 3.211 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.835931438463301E-16 -2.663318650187988E-15 2.108612180637232E-13 -7.188306801418894E-16 4.249248266431609E-14 -2.586282227464549E-16
q -2.663318650187988E-15 8.127686593001443E-15 -4.943943813384276E-13 6.758041013873699E-16 -1.002212196155441E-13 8.941835497369056E-16
tp 2.108612180637232E-13 -4.943943813384276E-13 7.938454612516961E-9 -1.344136539382004E-11 1.529941051147897E-9 -2.534280529147095E-14
node -7.188306801418894E-16 6.758041013873699E-16 -1.344136539382004E-11 1.16351858865606E-9 -1.159637960463673E-9 -2.8162921896664E-11
peri 4.249248266431609E-14 -1.002212196155441E-13 1.529941051147897E-9 -1.159637960463673E-9 1.452950670495096E-9 2.801105435010593E-11
i -2.586282227464549E-16 8.941835497369056E-16 -2.534280529147095E-14 -2.8162921896664E-11 2.801105435010593E-11 1.735540846694568E-11

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 11.5   n/a MPO384753  
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. 2019-August); 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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