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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 ]

[ 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 .1812348526126802 8.9549e-08  
a 3.187388167139256 3.1427e-08 au
q 2.609722342448372 2.7417e-07 au
i 24.93918090423836 5.6499e-06 deg
node 285.6378205164917 1.5701e-05 deg
peri 49.68051088526617 2.0367e-05 deg
M 60.02815288105468 1.3009e-05 deg
tp 2458253.920125526772
(2018-May-15.42012553)
7.4713e-05 TDB
period 2078.503982249637
5.69
3.074e-05
8.416e-08
d
yr
n .1732014964004829 2.5616e-09 deg/d
Q 3.765053991830139 3.7122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      8004 days (21.91 yr)  
   first obs. used      1997-12-29  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 10:17:06  

Additional Information
 Earth MOID = 1.65524 au 
 Jupiter MOID = 1.69239 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 13.6   n/a MPO453557  
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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