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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1652577779209644 5.8889e-08  
a 2.604601159485574 1.3307e-08 au
q 2.174170559498621 1.5584e-07 au
i 7.645379131798187 5.7699e-06 deg
node 316.9204142524234 3.5854e-05 deg
peri 36.99469948777791 3.8929e-05 deg
M 54.14099458912649 1.2491e-05 deg
tp 2458769.594647556702
(2019-Oct-13.09464756)
5.3431e-05 TDB
period 1535.360174123619
4.20
1.1766e-05
3.221e-08
d
yr
n .2344726703657579 1.7969e-09 deg/d
Q 3.035031759472528 1.5506e-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 = 1.1739 au 
 Jupiter MOID = 2.40949 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 15.8   n/a MPO502964  
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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