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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1538591512407192 4.6401e-08  
a 2.583272300242243 1.2659e-08 au
q 2.185812216703311 1.1633e-07 au
i 14.0369619402704 5.5749e-06 deg
node 261.7448161507508 1.8192e-05 deg
peri 89.7002309603027 2.6125e-05 deg
M 100.7837032654615 2.0006e-05 deg
tp 2458575.937610254671
(2019-Apr-02.43761025)
8.3104e-05 TDB
period 1516.539434016783
4.15
1.1147e-05
3.052e-08
d
yr
n .2373825513039815 1.7449e-09 deg/d
Q 2.980732383781175 1.4607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1633  
   data-arc span      24636 days (67.45 yr)  
   first obs. used      1952-08-19  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42851  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:58:08  

Additional Information
 Earth MOID = 1.23419 au 
 Jupiter MOID = 2.5356 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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