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379798 (2011 HL87)
Classification: Main-belt Asteroid          SPK-ID: 2379798
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1100160296655411 9.6155e-08  
a 3.017434058279681 5.244e-08 au
q 2.68546794341017 3.0186e-07 au
i 11.36055349697612 7.3209e-06 deg
node 120.5281109101107 4.356e-05 deg
peri 260.1380446708348 5.7139e-05 deg
M 100.3256165222231 3.326e-05 deg
tp 2458466.963119356874
(2018-Dec-14.46311936)
0.00017645 TDB
period 1914.498845755703
5.24
4.9908e-05
1.366e-07
d
yr
n .1880387657574682 4.9019e-09 deg/d
Q 3.349400173149192 5.8209e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      4094 days (11.21 yr)  
   first obs. used      2008-11-09  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57344  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 03:14:08  

Additional Information
 Earth MOID = 1.71667 au 
 Jupiter MOID = 2.17774 au 
 T_jup = 3.209 
[ 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 16.3   n/a MPO455733  

379798 (2011 HL87)          Discovered 2008-Nov-09 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

Alternate Designations
 2011 HL87 = 2010 CW150 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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