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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1075849098508226 4.5724e-08  
a 2.861798939276514 1.863e-08 AU
q 2.553912558383271 1.3349e-07 AU
i 15.58133253762576 6.025e-06 deg
node 61.36043517232377 1.9832e-05 deg
peri 87.07905706423276 3.3331e-05 deg
M 345.4768512436094 2.6368e-05 deg
tp 2457071.837089980130
(2015-Feb-18.33708998)
0.00012952 JED
period 1768.304712953259
4.84
1.7267e-05
4.727e-08
d
yr
n .2035848218708648 1.988e-09 deg/d
Q 3.169685320169758 2.0634e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1238  
   data-arc span      38771 days (106.15 yr)  
   first obs. used      1909-04-20  
   last obs. used      2015-06-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48141  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:34:16  

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-July); 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.]
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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