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JPL Small-Body Database Browser
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892 Seeligeria (A918 KC)
Classification: Outer Main-belt Asteroid          SPK-ID: 2000892
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1040617174226496 3.2183e-08  
a 3.225732652560991 1.5148e-08 au
q 2.890057372789176 1.0638e-07 au
i 21.3311302682921 4.2372e-06 deg
node 175.9058375457102 9.872e-06 deg
peri 286.496790225742 2.2721e-05 deg
M 254.444527920604 2.1404e-05 deg
tp 2459220.967779934386
(2021-Jan-06.46777993)
0.00012703 TDB
period 2116.123365052712
5.79
1.4906e-05
4.081e-08
d
yr
n .1701224068243453 1.1983e-09 deg/d
Q 3.561407932332807 1.6724e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2725  
   data-arc span      37070 days (101.49 yr)  
   first obs. used      1918-05-31  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .422  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:13:41  

Additional Information
 Earth MOID = 1.98632 au 
 Jupiter MOID = 1.66745 au 
 T_jup = 3.072 
[ 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 9.7   n/a MPO358634  
diameter diameter 74.481 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 41.39 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.055   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

892 Seeligeria (A918 KC)          Discovered 1918-May-31 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A918 KC = 1952 HY 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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