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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3114974542823842 7.22e-08  
a 2.309673806955199 1.619e-08 AU
q 1.590216295865952 1.6457e-07 AU
i 21.49071084180393 9.0379e-06 deg
node 340.445850622501 2.2511e-05 deg
peri 244.1754687498838 2.7587e-05 deg
M 180.6966836772153 2.3114e-05 deg
tp 2457639.072515166155
(2016-Sep-07.57251517)
8.6417e-05 JED
period 1282.107381917974
3.51
1.3481e-05
3.691e-08
d
yr
n .2807877133204369 2.9524e-09 deg/d
Q 3.029131318044447 2.1233e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      825  
   data-arc span      14916 days (40.84 yr)  
   first obs. used      1974-02-19  
   last obs. used      2014-12-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .41072  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-07 23:55:06  

Additional Information
 Earth MOID = .693118 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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[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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