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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03462218183274416 4.1216e-08  
a 2.984475190144707 2.4111e-08 au
q 2.881146147436203 1.2831e-07 au
i 8.49864937095067 4.9239e-06 deg
node 190.1036235074573 3.2916e-05 deg
peri 66.64036470130252 8.2427e-05 deg
M 325.3955281163763 7.5541e-05 deg
tp 2459181.521479958685
(2020-Nov-28.02147996)
0.00039534 TDB
period 1883.217088366159
5.16
2.2822e-05
6.248e-08
d
yr
n .1911622415832732 2.3166e-09 deg/d
Q 3.087804232853211 2.4946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      683  
   data-arc span      7707 days (21.10 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:02:47  

Additional Information
 Earth MOID = 1.88052 au 
 Jupiter MOID = 1.91403 au 
 T_jup = 3.241 
[ 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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