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2055 Dvorak (1974 DB)
Classification: Mars-crossing Asteroid          SPK-ID: 2002055
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3115658364784495 6.8848e-08  
a 2.310072389655195 1.4841e-08 au
q 1.590332753246503 1.5811e-07 au
i 21.49072089367434 8.6647e-06 deg
node 340.4458969310618 2.2045e-05 deg
peri 244.1260613548191 2.6976e-05 deg
M 293.0789301878373 2.2929e-05 deg
tp 2457638.895023489551
(2016-Sep-07.39502349)
8.3056e-05 JED
period 1282.439278049922
3.51
1.2358e-05
3.383e-08
d
yr
n .2807150452748267 2.7051e-09 deg/d
Q 3.029812026063887 1.9464e-08 au
  Orbit Determination Parameters
   # obs. used (total)      847  
   data-arc span      15271 days (41.81 yr)  
   first obs. used      1974-02-19  
   last obs. used      2015-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .41306  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:41:57  

Additional Information
 Earth MOID = .691869 au 
 Jupiter MOID = 2.26691 au 
 T_jup = 3.431 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO267715  
rotation period rot_per 4.405 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Oey, J. (2014) Minor Planet Bul. (2014) Minor Planet Bul. 41, 276-281.]
[Mazzone, F.; Colazo, C.; Mina, F.; Meilia, R.; Spagnotto, J.; Bernal, A. (2014) Minor Planet Bul. 41, 17-19.]

2055 Dvorak (1974 DB)          Discovered 1974-Feb-19 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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