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323 Brucia (A891 YB)
Classification: Main-belt Asteroid          SPK-ID: 2000323
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2989894045319911 4.2242e-08  
a 2.382533915545066 7.6339e-09 au
q 1.670181518858973 1.0047e-07 au
i 24.25498322373284 4.8396e-06 deg
node 97.31427152411543 1.1737e-05 deg
peri 291.5299985148412 1.3886e-05 deg
M 14.27607040925421 1.1075e-05 deg
tp 2458947.232385917313
(2020-Apr-07.73238592)
4.1177e-05 TDB
period 1343.250664926434
3.68
6.4559e-06
1.768e-08
d
yr
n .2680065675007249 1.2881e-09 deg/d
Q 3.094886312231159 9.9164e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2189  
   data-arc span      46733 days (127.95 yr)  
   first obs. used      1891-12-22  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41221  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:24:20  

Additional Information
 Earth MOID = .808806 au 
 Jupiter MOID = 2.61485 au 
 T_jup = 3.361 
[ 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 9.5   n/a MPO502155 IRAS observations used: 2
diameter diameter 27.714 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 9.463 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Schober, H.J.; Erikson, A.; Hahn, G.; Lagerkvist, C.-I. (1993) Astron. Astrophys. Suppl. Ser. 101, 499-505.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2014) Minor Planet Bull. 41, 144-155.]
[Warner, B.D. (2018) Minor Planet Bull. 45, 380-386.]
geometric albedo albedo 0.295   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.893   0.013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=4; phase (min.=11.39, mean=21.06, max.=33.19) deg.
U-B UB 0.480   0.049 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=11.41, mean=24.28, max.=33.19) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

323 Brucia (A891 YB)          Discovered 1891-Dec-22 by Wolf, M. at Heidelberg
Dec. 20 observation seems to be a prediscovery.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A891 YB = 1934 JC = A923 JA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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