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320 Katharina (A891 TB)
Classification: Main-belt Asteroid          SPK-ID: 2000320
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1172480883039814 2.4531e-08  
a 3.01022617139465 1.0806e-08 au
q 2.657282907436015 7.8437e-08 au
i 9.378502444032204 6.8309e-07 deg
node 219.9147512603399 5.3655e-06 deg
peri 149.5134085491209 6.7633e-06 deg
M 258.2292442001631 7.2632e-06 deg
tp 2459739.784101064307
(2022-Jun-09.28410106)
3.9905e-05 TDB
period 1907.643063641881
5.22
1.0272e-05
2.812e-08
d
yr
n .1887145487860418 1.0162e-09 deg/d
Q 3.363169435353286 1.2073e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2982  
   data-arc span      41406 days (113.36 yr)  
   first obs. used      1907-11-07  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42872  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:13:38  

Additional Information
 Earth MOID = 1.66123 au 
 Jupiter MOID = 2.12664 au 
 T_jup = 3.219 
[ 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 10.87   n/a E2021B10  
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 6.8926 h n/a LCDB (Rev. 2020-October); 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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 (A891 TB)          Discovered 1891-Oct-11 by Palisa, J. at Vienna
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A891 TB = 1954 UF2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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