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117159 (2004 QE12)
Classification: Main-belt Asteroid          SPK-ID: 2117159
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06259779386821174 6.0595e-08  
a 3.083612123207115 2.7643e-08 au
q 2.890584807149077 2.0139e-07 au
i 11.61487711237028 4.5776e-06 deg
node 86.50188176049393 2.5575e-05 deg
peri 280.4192622689894 4.4331e-05 deg
M 307.2456448598272 3.6534e-05 deg
tp 2459290.330350085679
(2021-Mar-16.83035009)
0.00020135 TDB
period 1977.825826012034
5.41
2.6595e-05
7.281e-08
d
yr
n .1820180499543187 2.4475e-09 deg/d
Q 3.276639439265153 2.9373e-08 au
  Orbit Determination Parameters
   # obs. used (total)      613  
   data-arc span      7672 days (21.00 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-10-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:20:46  

Additional Information
 Earth MOID = 1.91968 au 
 Jupiter MOID = 2.08047 au 
 T_jup = 3.193 
[ 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 MPO359559  
diameter diameter 4.844 km 0.663 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.131   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

117159 (2004 QE12)          Discovered 2004-Aug-21 by Siding Spring Survey at Siding Spring
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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