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109641 (2001 RQ)
Classification: Main-belt Asteroid          SPK-ID: 2109641
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1814778961690235 8.5979e-08  
a 3.187820364078752 3.1218e-08 au
q 2.609301431040969 2.6122e-07 au
i 24.94092848855168 5.4592e-06 deg
node 285.6361778279285 1.3594e-05 deg
peri 49.73219848395783 1.8573e-05 deg
M 129.2176943169923 1.271e-05 deg
tp 2458254.294106929191
(2018-May-15.79410693)
7.1649e-05 TDB
period 2078.926751676033
5.69
3.0538e-05
8.361e-08
d
yr
n .1731662742373042 2.5437e-09 deg/d
Q 3.766339297116534 3.6884e-08 au
  Orbit Determination Parameters
   # obs. used (total)      991  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1997-12-29  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45158  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:29:52  

Additional Information
 Earth MOID = 1.65578 au 
 Jupiter MOID = 1.69434 au 
 T_jup = 3.028 
[ 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 13.7   n/a MPO502756  
diameter diameter 12.309 km 0.381 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.056   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109641 (2001 RQ)          Discovered 2001-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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