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190620 (2000 WC39)
Classification: Main-belt Asteroid          SPK-ID: 2190620
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2572656438980732 5.6484e-08  
a 2.582273095433502 2.0626e-08 au
q 1.917942944816132 1.5449e-07 au
i 5.055733122563456 6.2019e-06 deg
node 153.9983233544378 4.8807e-05 deg
peri 224.8138754779226 5.0722e-05 deg
M 333.6742350030462 1.9556e-05 deg
tp 2459311.335831007098
(2021-Apr-06.83583101)
8.3488e-05 TDB
period 1515.65962725764
4.15
1.8159e-05
4.972e-08
d
yr
n .23752034660405 2.8458e-09 deg/d
Q 3.246603246050872 2.5932e-08 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      6833 days (18.71 yr)  
   first obs. used      2000-09-04  
   last obs. used      2019-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60455  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 21:21:56  

Additional Information
 Earth MOID = .92233 au 
 Jupiter MOID = 2.22228 au 
 T_jup = 3.371 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO436944  
rotation period rot_per 6.19 h n/a LCDB (Rev. 2020-October); 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]

190620 (2000 WC39)          Discovered 2000-Nov-20 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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