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17398 (1982 UR2)
Classification: Main-belt Asteroid          SPK-ID: 2017398
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1375582064381281 3.1726e-08  
a 2.757958237691585 1.3115e-08 au
q 2.37857844908347 8.9063e-08 au
i 18.68108267540334 4.5621e-06 deg
node 189.6587656417351 1.161e-05 deg
peri 284.5735651830594 2.1204e-05 deg
M 17.8243122131706 1.6369e-05 deg
tp 2458917.669509103334
(2020-Mar-09.16950910)
7.6082e-05 TDB
period 1672.938420634609
4.58
1.1933e-05
3.267e-08
d
yr
n .2151902279005813 1.535e-09 deg/d
Q 3.1373380262997 1.4919e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1606  
   data-arc span      13696 days (37.50 yr)  
   first obs. used      1982-10-20  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46569  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:35:33  

Additional Information
 Earth MOID = 1.46797 au 
 Jupiter MOID = 2.09711 au 
 T_jup = 3.253 
[ 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 13.7   n/a MPO502302  
diameter diameter 9.556 km 2.376 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.073   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

17398 (1982 UR2)          Discovered 1982-Oct-20 by Aldering, G. at Kitt Peak
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1982 UR2 = 1998 HJ141 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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