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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 ]

[ 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 .1783227563003607 6.594e-08  
a 3.155192514476373 3.5054e-08 AU
q 2.59254988863668 2.1273e-07 AU
i 6.060791923364214 6.7468e-06 deg
node 46.4277891294095 6.4283e-05 deg
peri 339.4269952792662 6.729e-05 deg
M 252.089506870218 2.3266e-05 deg
tp 2457614.118433558376
(2016-Aug-13.61843356)
0.00013866 JED
period 2047.091340925851
5.60
3.4114e-05
9.34e-08
d
yr
n .1758592754523501 2.9307e-09 deg/d
Q 3.717835140316065 4.1305e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      775  
   data-arc span      9784 days (26.79 yr)  
   first obs. used      1988-11-02  
   last obs. used      2015-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52366  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:56:18  

Additional Information
 Earth MOID = 1.59789 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 13.3 mag n/a MPO259493  
rotation period rot_per 4.0314 h n/a LCDB (Rev. 2015-July); 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. (2015) Astron. J., in press.]

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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