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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3113328620661669 4.0411e-08  
a 2.310329439121618 1.028e-08 au
q 1.591047962524163 9.5286e-08 au
i 21.4847537433176 5.4461e-06 deg
node 340.4214047622229 1.102e-05 deg
peri 244.1983183703641 1.6073e-05 deg
M 269.7959913208181 1.58e-05 deg
tp 2458921.890201802096
(2020-Mar-13.39020180)
5.7353e-05 TDB
period 1282.65333595376
3.51
8.5609e-06
2.344e-08
d
yr
n .2806681976407209 1.8733e-09 deg/d
Q 3.029610915719074 1.3481e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1672  
   data-arc span      16727 days (45.80 yr)  
   first obs. used      1974-02-19  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37718  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:09:42  

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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