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JPL Small-Body Database Browser
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56903 (2000 QR170)
Classification: Main-belt Asteroid          SPK-ID: 2056903
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0323462617497787 4.9589e-08  
a 3.063649888363439 2.1433e-08 au
q 2.964552267164755 1.4601e-07 au
i 8.903851984705414 5.8424e-06 deg
node 189.0506242770491 2.9234e-05 deg
peri 236.4382148386012 9.6849e-05 deg
M 98.65367573531381 9.04e-05 deg
tp 2458063.755136834762
(2017-Nov-06.25513683)
0.00049209 TDB
period 1958.651305177049
5.36
2.0554e-05
5.627e-08
d
yr
n .1837999438942801 1.9288e-09 deg/d
Q 3.162747509562123 2.2126e-08 au
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      10400 days (28.47 yr)  
   first obs. used      1990-11-14  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56479  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:10:22  

Additional Information
 Earth MOID = 1.98553 au 
 Jupiter MOID = 1.94973 au 
 T_jup = 3.214 
[ 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 14.1   n/a MPO436181  
diameter diameter 4.464 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.223   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

56903 (2000 QR170)          Discovered 2000-Aug-31 by LINEAR at Socorro
Reference: 20030318/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 QR170 = 1998 HT29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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