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JPL Small-Body Database Browser
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320 Katharina
Classification: Main-belt Asteroid          SPK-ID: 2000320
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170735682627215 3.6399e-08  
a 3.009980086733878 1.2622e-08 au
q 2.657590977580206 1.1112e-07 au
i 9.379285960896675 3.9865e-06 deg
node 219.92085074286 2.4279e-05 deg
peri 149.7631555233453 2.9289e-05 deg
M 144.6698237378216 1.6964e-05 deg
tp 2457833.987375565091
(2017-Mar-21.48737556)
8.8175e-05 TDB
period 1907.409144955127
5.22
1.1997e-05
3.285e-08
d
yr
n .1887376921475697 1.1871e-09 deg/d
Q 3.362369195887549 1.4099e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2410  
   data-arc span      40728 days (111.51 yr)  
   first obs. used      1907-11-07  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45905  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:06:07  

Additional Information
 Earth MOID = 1.66216 au 
 Jupiter MOID = 2.12283 au 
 T_jup = 3.219 
[ 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 10.8   n/a MPO337243  
diameter diameter 23.362 km 0.465 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.893 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.155   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

320 Katharina          Discovered 1891-Oct-11 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1954 UF2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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