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JPL Small-Body Database Browser
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323 Brucia
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .299135073454752 4.2842e-08  
a 2.38376192474067 7.9084e-09 au
q 1.670695126284728 1.0176e-07 au
i 24.25120823574213 4.8471e-06 deg
node 97.31442166764165 1.1881e-05 deg
peri 291.4333612813897 1.3995e-05 deg
M 267.2027348923139 1.0795e-05 deg
tp 2458947.017698336465
4.1324e-05 TDB
period 1344.289309133909
n .2677994963985385 1.3327e-09 deg/d
Q 3.096828723196611 1.0274e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2131  
   data-arc span      46713 days (127.89 yr)  
   first obs. used      1891-12-22  
   last obs. used      2019-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41855  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:05:14  

Additional Information
 Earth MOID = .809292 au 
 Jupiter MOID = 2.61342 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 9.73   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 2
diameter diameter 27.714 km 0.300 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 9.463 h n/a LCDB (Rev. 2019-January); 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,]
[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] (  
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          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
 1934 JC = A923 JA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2019-Dec-12 08:54 UT
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