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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3113969092164766 3.2642e-08  
a 2.310344220366521 8.7146e-09 au
q 1.590910170918236 7.509e-08 au
i 21.48645224697157 5.2335e-06 deg
node 340.4152982764622 1.0603e-05 deg
peri 244.2386615304722 1.399e-05 deg
M 22.04436417728882 1.066e-05 deg
tp 2458921.956809431137
(2020-Mar-13.45680943)
3.7889e-05 TDB
period 1282.665645395276
3.51
7.2573e-06
1.987e-08
d
yr
n .2806655041338226 1.588e-09 deg/d
Q 3.029778269814805 1.1428e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1955  
   data-arc span      17054 days (46.69 yr)  
   first obs. used      1974-02-19  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:13:00  

Additional Information
 Earth MOID = .692828 au 
 Jupiter MOID = 2.26654 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-August); 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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