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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2991119592048748 1.8524e-08  
a 2.382919564225876 6.3127e-09 au
q 1.670159824742648 4.5027e-08 au
i 24.25398846657897 4.5367e-07 deg
node 97.31404263513993 1.6962e-06 deg
peri 291.5388823922624 4.3696e-06 deg
M 67.85370139510073 6.4853e-06 deg
tp 2458947.259277593787
(2020-Apr-07.75927759)
2.3665e-05 TDB
period 1343.576815881986
3.68
5.339e-06
1.462e-08
d
yr
n .2679415093685427 1.0647e-09 deg/d
Q 3.095679303709105 8.201e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2706  
   data-arc span      47200 days (129.23 yr)  
   first obs. used      1891-12-22  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40292  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:42:11  

Additional Information
 Earth MOID = .808201 au 
 Jupiter MOID = 2.61503 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. 2020-October); 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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