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268172 (2004 XN17)
Classification: Main-belt Asteroid          SPK-ID: 2268172
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2274398092708923 4.3103e-08  
a 3.070990849944664 3.0424e-08 au
q 2.372525276760594 1.3739e-07 au
i 4.966361984711464 5.4958e-06 deg
node 81.64544219364844 6.9417e-05 deg
peri 336.079584108285 7.11e-05 deg
M 257.1828137636783 1.6424e-05 deg
tp 2459161.909069447464
(2020-Nov-08.40906945)
9.4325e-05 TDB
period 1965.695351130798
5.38
2.9211e-05
7.998e-08
d
yr
n .1831412989774353 2.7216e-09 deg/d
Q 3.769456423128733 3.7344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      9405 days (25.75 yr)  
   first obs. used      1993-11-21  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52502  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:38:21  

Additional Information
 Earth MOID = 1.38552 au 
 Jupiter MOID = 1.59045 au 
 T_jup = 3.185 
[ 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 15.7   n/a MPO454992  
diameter diameter 3.518 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.090   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

268172 (2004 XN17)          Discovered 2004-Dec-03 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 2004 XN17 = 2009 TK21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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