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17718 (1997 XZ)
Classification: Main-belt Asteroid          SPK-ID: 2017718
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1063911777111083 3.9394e-08  
a 2.412641904841916 8.8712e-09 au
q 2.155958091190613 9.6078e-08 au
i 2.233359034992928 4.0026e-06 deg
node 337.9478823633346 8.8211e-05 deg
peri 209.868963173153 8.9846e-05 deg
M 279.3864778965223 1.9135e-05 deg
tp 2459307.008923396197
(2021-Apr-02.50892340)
7.344e-05 TDB
period 1368.792846949318
3.75
7.5495e-06
2.067e-08
d
yr
n .2630054655840335 1.4506e-09 deg/d
Q 2.669325718493219 9.815e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1495  
   data-arc span      10526 days (28.82 yr)  
   first obs. used      1991-03-11  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47908  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 00:33:22  

Additional Information
 Earth MOID = 1.15721 au 
 Jupiter MOID = 2.29126 au 
 T_jup = 3.510 
[ 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 15.0   n/a MPO502304  
diameter diameter 5.725 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

17718 (1997 XZ)          Discovered 1997-Dec-03 by Kobayashi, T. at Oizumi
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 XZ = 1991 ES3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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