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JPL Small-Body Database Browser
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31240 Katrianne (1998 DB2)
Classification: Main-belt Asteroid          SPK-ID: 2031240
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1830337011982077 3.5727e-08  
a 2.7910736810664 1.367e-08 au
q 2.280213134903911 1.0121e-07 au
i 7.331672525335391 4.9264e-06 deg
node 2.78492866728156 2.939e-05 deg
peri 104.6143484639835 3.2703e-05 deg
M 316.3126823822137 1.5036e-05 deg
tp 2459207.184666483741
(2020-Dec-23.68466648)
7.1977e-05 TDB
period 1703.15972669958
4.66
1.2512e-05
3.426e-08
d
yr
n .2113718369196152 1.5528e-09 deg/d
Q 3.301934227228889 1.6172e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1125  
   data-arc span      8510 days (23.30 yr)  
   first obs. used      1996-10-06  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55828  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 02:18:20  

Additional Information
 Earth MOID = 1.31006 au 
 Jupiter MOID = 1.86937 au 
 T_jup = 3.293 
[ 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 14.4   n/a MPO452609  
diameter diameter 8.566 km 0.155 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

31240 Katrianne           Discovered 1998 Feb. 20 by G. Lehmann at Volkssternwarte Drebach.
Katrin Susanne Lehmann, wife of the discoverer, is a committed teacher of physics and astronomy, as well as the caring mother of two sons. Her love and support made possible the discovery of many minor planets at the Drebach Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020921/MPCPages.arcLast Updated: 2003-10-02

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