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JPL Small-Body Database Browser
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11819 Millarca (1981 ER35)
Classification: Main-belt Asteroid          SPK-ID: 2011819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1046464301526367 4.2107e-08  
a 3.010101170626793 2.3718e-08 au
q 2.695104828722426 1.2505e-07 au
i 8.081280455108596 6.0087e-06 deg
node 289.8553583758954 3.5283e-05 deg
peri 108.6864021951594 4.7212e-05 deg
M 246.3929122700163 3.142e-05 deg
tp 2459202.467427360445
(2020-Dec-18.96742736)
0.00016859 TDB
period 1907.524241487669
5.22
2.2546e-05
6.173e-08
d
yr
n .1887263040595687 2.2306e-09 deg/d
Q 3.325097512531159 2.62e-08 au
  Orbit Determination Parameters
   # obs. used (total)      685  
   data-arc span      14045 days (38.45 yr)  
   first obs. used      1979-12-20  
   last obs. used      2018-06-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57577  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:14:17  

Additional Information
 Earth MOID = 1.71641 au 
 Jupiter MOID = 2.07234 au 
 T_jup = 3.226 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO435811  

11819 Millarca           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring.
Millarca Valenzuela (b. 1977) is a geologist at the Pontificia Universidad Catolica de Chile, and a specialist in meteorites, undertaking many search expeditions in the Atacama Desert.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-03-12Last Updated: 2017-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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