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187148 (2005 QZ171)
Classification: Main-belt Asteroid          SPK-ID: 2187148
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02969818753412965 4.9782e-08  
a 2.785469331638567 2.3362e-08 au
q 2.702745941056998 1.3498e-07 au
i 5.002199280425416 5.0945e-06 deg
node 299.1861113243332 6.4711e-05 deg
peri 350.5983857774676 0.00012244 deg
M 170.9419861750831 0.00010611 deg
tp 2458394.208198957386
(2018-Oct-02.70819896)		 0.00049865 TDB
period 1698.032501377656
4.65		 2.1363e-05
5.849e-08		 d
yr
n .2120100761957873 2.6673e-09 deg/d
Q 2.868192722220135 2.4056e-08 au
   Orbit Determination Parameters
   # obs. used (total)      414  
   data-arc span      6970 days (19.08 yr)  
   first obs. used      2001-12-18  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55239  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 11:56:14  

Additional Information
 Earth MOID = 1.68467 au 
 Jupiter MOID = 2.20214 au 
 T_jup = 3.325 
[ 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 15.8   n/a MPO494032  
diameter diameter 3.750 km 0.782 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.055   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

187148 (2005 QZ171)          Discovered 2005-Aug-29 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 2005 QZ171 = 2001 YT23 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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