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JPL Small-Body Database Browser
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160331 (2003 QS57)
Classification: Main-belt Asteroid          SPK-ID: 2160331
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .114636155695561 5.4363e-08  
a 2.575362006682984 2.2125e-08 au
q 2.280132406712441 1.3947e-07 au
i 12.64615190278499 8.3189e-06 deg
node 138.4523753232203 2.5072e-05 deg
peri 112.505129465282 4.6042e-05 deg
M 98.20648922197267 4.1453e-05 deg
tp 2458588.693176460596
(2019-Apr-15.19317646)		 0.00017144 TDB
period 1509.579027299307
4.13		 1.9453e-05
5.326e-08		 d
yr
n .2384770810204309 3.0731e-09 deg/d
Q 2.870591606653527 2.4661e-08 au
   Orbit Determination Parameters
   # obs. used (total)      373  
   data-arc span      7246 days (19.84 yr)  
   first obs. used      1998-04-23  
   last obs. used      2018-02-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62087  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 06:30:48  

Additional Information
 Earth MOID = 1.29924 au 
 Jupiter MOID = 2.28385 au 
 T_jup = 3.384 
[ 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 15.6   n/a MPO248241  
diameter diameter 2.183 km 0.505 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.234   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160331 (2003 QS57)          Discovered 2003-Aug-23 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

[ show close-approach data ]
Alternate Designations
 2003 QS57 = 2006 EV44 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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