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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1062889612531239 3.8549e-08  
a 2.412601886623461 7.6925e-09 au
q 2.156168938176926 9.32e-08 au
i 2.233454075847537 3.968e-06 deg
node 337.9460178253428 8.1639e-05 deg
peri 209.8466974983297 8.2936e-05 deg
M 331.9999778392894 1.5184e-05 deg
tp 2459306.959101340809
(2021-Apr-02.45910134)
5.781e-05 TDB
period 1368.758791072284
3.75
6.5464e-06
1.792e-08
d
yr
n .2630120093825855 1.2579e-09 deg/d
Q 2.669034835069996 8.5101e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1649  
   data-arc span      10962 days (30.01 yr)  
   first obs. used      1991-03-11  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47395  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:10:42  

Additional Information
 Earth MOID = 1.15682 au 
 Jupiter MOID = 2.29049 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 15.01   n/a E2021B10  
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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