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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3114828092465485 5.847e-08  
a 2.310224187897176 1.1264e-08 au
q 1.590629067861637 1.3801e-07 au
i 21.48950518876337 7.7825e-06 deg
node 340.4455316618665 1.6551e-05 deg
peri 244.0926868224058 2.2541e-05 deg
M 349.2358432900429 1.9733e-05 deg
tp 2457638.849272336346
(2016-Sep-07.34927234)
7.0422e-05 JED
period 1282.565686572922
3.51
9.3803e-06
2.568e-08
d
yr
n .2806873782518988 2.0529e-09 deg/d
Q 3.029819307932714 1.4773e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1039  
   data-arc span      15399 days (42.16 yr)  
   first obs. used      1974-02-19  
   last obs. used      2016-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .39899  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:37:25  

Additional Information
 Earth MOID = .691777 au 
 Jupiter MOID = 2.26688 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 12.8 mag n/a MPO365269  
rotation period rot_per 4.405 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Oey, J. (2014) Minor Planet Bul. (2014) Minor Planet Bul. 41, 276-281.]
[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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