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JPL Small-Body Database Browser
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109301 (2001 QR128)
Classification: Main-belt Asteroid          SPK-ID: 2109301
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09573798246810773 5.7445e-08  
a 3.013318246839842 2.7975e-08 au
q 2.72482923735306 1.7639e-07 au
i 8.88628138161625 5.8763e-06 deg
node 245.6082779464584 4.5209e-05 deg
peri 68.97067563100562 5.8381e-05 deg
M 148.3776851791563 3.6706e-05 deg
tp 2457813.033622681247
(2017-Feb-28.53362268)
0.00019516 TDB
period 1910.583087291448
5.23
2.6606e-05
7.284e-08
d
yr
n .1884241530214509 2.6239e-09 deg/d
Q 3.301807256326624 3.0653e-08 au
  Orbit Determination Parameters
   # obs. used (total)      437  
   data-arc span      6804 days (18.63 yr)  
   first obs. used      2000-05-23  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64704  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 05:40:47  

Additional Information
 Earth MOID = 1.72599 au 
 Jupiter MOID = 1.93793 au 
 T_jup = 3.224 
[ 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 3.967 km 0.694 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.093   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109301 (2001 QR128)          Discovered 2001-Aug-20 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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