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JPL Small-Body Database Browser
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109481 (2001 QR222)
Classification: Outer Main-belt Asteroid          SPK-ID: 2109481
[ 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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .109713519584442 4.6923e-08  
a 3.209565469344921 3.3446e-08 au
q 2.857432745366398 1.4851e-07 au
i 8.960214252211875 5.9043e-06 deg
node 208.0016647664048 3.4111e-05 deg
peri 30.39256780773177 4.3417e-05 deg
M 103.3101354499392 2.7222e-05 deg
tp 2457997.790252258667
(2017-Sep-01.29025226)		 0.00015774 TDB
period 2100.234485628174
5.75		 3.2829e-05
8.988e-08		 d
yr
n .1714094318817573 2.6793e-09 deg/d
Q 3.561698193323444 3.7116e-08 au
   Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      8448 days (23.13 yr)  
   first obs. used      1996-10-06  
   last obs. used      2019-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60529  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 10:16:02  

Additional Information
 Earth MOID = 1.85037 au 
 Jupiter MOID = 1.44159 au 
 T_jup = 3.163 
[ 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 14.7   n/a MPO412772  
diameter diameter 6.127 km 0.376 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.068   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109481 (2001 QR222)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QR222 = 2000 JD86 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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