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21019 (1988 VC2)
Classification: Main-belt Asteroid          SPK-ID: 2021019
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1780957227503571 6.3364e-08  
a 3.155761341779094 3.4529e-08 au
q 2.59373374478731 2.0645e-07 au
i 6.060419904735327 6.5688e-06 deg
node 46.41260923407376 6.4142e-05 deg
peri 339.3302671801505 6.7162e-05 deg
M 357.6626559601232 2.4043e-05 deg
tp 2457613.794585327639
(2016-Aug-13.29458533)
0.00013689 JED
period 2047.644949265685
5.61
3.3606e-05
9.201e-08
d
yr
n .1758117295330429 2.8855e-09 deg/d
Q 3.717788938770878 4.0678e-08 au
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      9797 days (26.82 yr)  
   first obs. used      1988-11-02  
   last obs. used      2015-08-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52313  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 14:07:05  

Additional Information
 Earth MOID = 1.59787 au 
 Jupiter MOID = 1.73086 au 
 T_jup = 3.173 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO347686  
rotation period rot_per 4.0314 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

21019 (1988 VC2)          Discovered 1988-Nov-02 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 VC2 = 1997 HY8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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