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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .311332852966797 4.061e-08  
a 2.310329444164242 1.0492e-08 au
q 1.591047987019394 9.5886e-08 au
i 21.48475401660117 5.4483e-06 deg
node 340.42140400776 1.1066e-05 deg
peri 244.1983260978946 1.6372e-05 deg
M 269.795980641033 1.6428e-05 deg
tp 2458921.890240905599
(2020-Mar-13.39024091)
5.9671e-05 TDB
period 1282.653340153121
3.51
8.7374e-06
2.392e-08
d
yr
n .2806681967218234 1.9119e-09 deg/d
Q 3.02961090130909 1.3758e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1617  
   data-arc span      16520 days (45.23 yr)  
   first obs. used      1974-02-19  
   last obs. used      2019-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37743  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 18:15:47  

Additional Information
 Earth MOID = .693118 au 
 Jupiter MOID = 2.26737 au 
 T_jup = 3.431 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8   n/a MPO365269  
rotation period rot_per 4.405 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Mazzone, F.; Colazo, C.; Mina, F.; Meilia, R.; Spagnotto, J.; Bernal, A. (2014) Minor Planet Bull. 41, 17-19.]
[Oey, J. (2014) Minor Planet Bull. 41, 276-281.]

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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