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293 Brasilia
Classification: Main-belt Asteroid          SPK-ID: 2000293
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1075849105254763 4.5774e-08  
a 2.861798938037617 2.0658e-08 AU
q 2.553912555346937 1.3364e-07 AU
i 15.58133331650283 6.7299e-06 deg
node 61.36043484826183 1.9858e-05 deg
peri 87.07905558855549 3.5639e-05 deg
M 345.4768535203946 3.0946e-05 deg
tp 2457071.837078750334
(2015-Feb-18.33707875)
0.00015218 JED
period 1768.304711804988
4.84
1.9147e-05
5.242e-08
d
yr
n .2035848220030652 2.2044e-09 deg/d
Q 3.169685320728297 2.2881e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1167  
   data-arc span      38631 days (105.77 yr)  
   first obs. used      1909-04-20  
   last obs. used      2015-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49054  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 12:52:57  

Additional Information
 Earth MOID = 1.62403 AU 
 T_jup = 3.239 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.94 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 31
diameter diameter 55.11 km 1.6 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 31
rotation period rot_per 8.17 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Oey, J. (2006) Minor Planet Bul. 33, 96-99.]
[Stephens, R.D. (2006) Minor Planet Bul. 33, 100-101.]
[Collaborative Asteroid Lightcurve Link (CALL) (2011) http://www.minorplanetobserver.com/DATA/submi ssions_results.htm]
geometric albedo albedo 0.0615   0.004 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 31
B-V BV .721 mag .010 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=9.47, mean=10.28, max.=10.83) deg.
U-B UB .352 mag .036 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=3; phase (min.=9.47, mean=10.28, max.=10.83) deg.
Tholen spectral type spec_T CX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

293 Brasilia          Discovered 1890-May-20 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A909 HB 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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