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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3114974545075338 7.2199e-08  
a 2.309673806949303 1.6186e-08 AU
q 1.59021629534187 1.6457e-07 AU
i 21.49070971960541 9.0148e-06 deg
node 340.4458513726071 2.2507e-05 deg
peri 244.1754679746604 2.7566e-05 deg
M 180.6966836950188 2.3107e-05 deg
tp 2457639.072515100304
(2016-Sep-07.57251510)
8.6395e-05 JED
period 1282.107381913064
3.51
1.3478e-05
3.69e-08
d
yr
n .2807877133215122 2.9517e-09 deg/d
Q 3.029131318556735 2.1228e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      828  
   data-arc span      14949 days (40.93 yr)  
   first obs. used      1974-02-19  
   last obs. used      2015-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .41286  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:00:55  

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 LCDB (Rev. 2015-Feb); 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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