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17194 (1999 XA221)
Classification: Main-belt Asteroid          SPK-ID: 2017194
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1536177290808629 4.7162e-08  
a 2.582588203435518 1.3376e-08 au
q 2.185856868472728 1.1907e-07 au
i 14.03749333030482 5.6011e-06 deg
node 261.7446296345464 2.0048e-05 deg
peri 89.64588206512812 2.7803e-05 deg
M 5.882553069047628 2.0729e-05 deg
tp 2458575.728943815710
(2019-Apr-02.22894382)
8.7207e-05 TDB
period 1515.937063664768
4.15
1.1777e-05
3.224e-08
d
yr
n .2374768772588108 1.8449e-09 deg/d
Q 2.979319538398308 1.543e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1531  
   data-arc span      24581 days (67.30 yr)  
   first obs. used      1952-08-19  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43691  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:17:36  

Additional Information
 Earth MOID = 1.23338 au 
 Jupiter MOID = 2.53391 au 
 T_jup = 3.365 
[ 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 12.9   n/a MPO358797  
diameter diameter 6.667 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.274   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

17194 (1999 XA221)          Discovered 1999-Dec-14 by LINEAR at Socorro
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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