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JPL Small-Body Database Browser
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378 Holmia (A893 XA)
Classification: Main-belt Asteroid          SPK-ID: 2000378
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1302248719939582 4.1023e-08  
a 2.77638709281513 1.0093e-08 au
q 2.414832439047602 1.1319e-07 au
i 7.006094604266178 4.6625e-06 deg
node 232.4504004371132 3.5126e-05 deg
peri 157.5831984767714 3.8892e-05 deg
M 65.22433647293924 1.715e-05 deg
tp 2458294.356092595956
(2018-Jun-24.85609260)
8.0174e-05 TDB
period 1689.734424683359
4.63
9.2142e-06
2.523e-08
d
yr
n .2130512314486703 1.1618e-09 deg/d
Q 3.137941746582658 1.1408e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2590  
   data-arc span      45963 days (125.84 yr)  
   first obs. used      1894-02-02  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45315  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:41:49  

Additional Information
 Earth MOID = 1.42166 au 
 Jupiter MOID = 2.2932 au 
 T_jup = 3.312 
[ 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 9.8   n/a MPO435698  
diameter diameter 27.831 km 0.362 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 4.450 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Dotto, E.; Rotundi, A.; De Sanctis, M.C. (1992) in Physical Properties of Small Solar System Bodies. A. Brahic, J.-C. Gerard, J. Surdej, eds. Universite de Liege, Institut d'Astrophysique, Liege, p. 211.]
[Di Martino, M.; Dotto, E.; Barucci, M.A.; Fulchignoni, M.; Rotundi, A. (1994) Icarus 109, 210-218.]
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.339   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.874   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=3.82 deg.
U-B UB 0.424   0.028 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=3.82 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

378 Holmia (A893 XA)          Discovered 1893-Dec-06 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A893 XA = 1953 XS1 = 1960 FJ = 1962 TP = 1962 UC = 1979 KP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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