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JPL Small-Body Database Browser
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11217 (1999 JC4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2011217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06947367205808633 3.5189e-08  
a 1.943896257493924 6.6585e-09 au
q 1.80884664638585 6.82e-08 au
i 19.29264999532191 5.5982e-06 deg
node 224.6466571683777 1.1681e-05 deg
peri 69.6836941735634 4.2652e-05 deg
M 62.83252456758353 4.1614e-05 deg
tp 2458427.721355992024
(2018-Nov-05.22135599)
0.00011416 TDB
period 989.9381295107419
2.71
5.0863e-06
1.393e-08
d
yr
n .3636590906725889 1.8685e-09 deg/d
Q 2.078945868601999 7.1211e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1098  
   data-arc span      14984 days (41.02 yr)  
   first obs. used      1978-11-28  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47654  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:13:24  

Additional Information
 Earth MOID = .851329 au 
 Jupiter MOID = 3.00435 au 
 T_jup = 3.828 
[ 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 15.1   n/a MPO395109  
rotation period rot_per 4.8219 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 54-57.]

11217 (1999 JC4)          Discovered 1999-May-10 by LINEAR at Socorro
Reference: 19990728/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JC4 = 1978 WZ20 = 1989 UM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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