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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .311497453479377 7.2224e-08  
a 2.309673808140701 1.6549e-08 AU
q 1.590216298536857 1.6464e-07 AU
i 21.49071344264421 1.0546e-05 deg
node 340.445848044037 2.3383e-05 deg
peri 244.175467938071 2.9673e-05 deg
M 180.6966856337853 2.3803e-05 deg
tp 2457639.072508689655
(2016-Sep-07.57250869)
8.8444e-05 JED
period 1282.107382905088
3.51
1.3779e-05
3.772e-08
d
yr
n .2807877131042543 3.0178e-09 deg/d
Q 3.029131317744545 2.1704e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      748  
   data-arc span      14838 days (40.62 yr)  
   first obs. used      1974-02-19  
   last obs. used      2014-10-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .42071  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 13:53:05  

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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