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109270 (2001 QA112)
Classification: Main-belt Asteroid          SPK-ID: 2109270
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03448731333777813 4.2567e-08  
a 2.985147614118306 2.6131e-08 au
q 2.882197892990688 1.304e-07 au
i 8.497746986725767 5.0143e-06 deg
node 190.1066603580915 3.5379e-05 deg
peri 66.13562465470332 8.7734e-05 deg
M 249.421756638023 8.0994e-05 deg
tp 2459179.147831678646
(2020-Nov-25.64783168)
0.00042525 TDB
period 1883.853577980987
5.16
2.4736e-05
6.772e-08
d
yr
n .1910976544078488 2.5092e-09 deg/d
Q 3.088097335245925 2.7032e-08 au
  Orbit Determination Parameters
   # obs. used (total)      622  
   data-arc span      7266 days (19.89 yr)  
   first obs. used      1999-03-22  
   last obs. used      2019-02-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59371  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:11:06  

Additional Information
 Earth MOID = 1.88128 au 
 Jupiter MOID = 1.91375 au 
 T_jup = 3.240 
[ 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 14.9   n/a MPO436525  
diameter diameter 3.938 km 0.984 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.165   0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109270 (2001 QA112)          Discovered 2001-Aug-24 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QA112 = 1999 FA62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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