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173197 (1998 QZ38)
Classification: Main-belt Asteroid          SPK-ID: 2173197
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .165221394343241 5.8914e-08  
a 2.604542697691611 1.3365e-08 au
q 2.174216521552496 1.5584e-07 au
i 7.644934150777998 5.7697e-06 deg
node 316.9238459218201 3.5858e-05 deg
peri 36.90633162549399 3.8931e-05 deg
M 320.4126306033025 1.2562e-05 deg
tp 2458769.330066634168
(2019-Oct-12.83006663)
5.3425e-05 TDB
period 1535.308481330184
4.20
1.1818e-05
3.236e-08
d
yr
n .2344805649012619 1.8048e-09 deg/d
Q 3.034868873830725 1.5573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      496  
   data-arc span      7766 days (21.26 yr)  
   first obs. used      1998-08-17  
   last obs. used      2019-11-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54176  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:02:02  

Additional Information
 Earth MOID = 1.173 au 
 Jupiter MOID = 2.40581 au 
 T_jup = 3.381 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO454188  
diameter diameter 3.986 km 0.882 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.070   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173197 (1998 QZ38)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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