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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1374852898596484 3.0236e-08  
a 2.757493804420738 1.2417e-08 au
q 2.378378969433768 8.3794e-08 au
i 18.68290914212301 4.5402e-06 deg
node 189.6556077801773 1.1099e-05 deg
peri 284.512188602753 2.0663e-05 deg
M 60.92620397279038 1.628e-05 deg
tp 2458917.444326494944
(2020-Mar-08.94432649)
7.561e-05 TDB
period 1672.515860455194
4.58
1.1297e-05
3.093e-08
d
yr
n .2152445955890797 1.4538e-09 deg/d
Q 3.136608639407708 1.4124e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1721  
   data-arc span      14026 days (38.40 yr)  
   first obs. used      1982-10-20  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46873  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:02:31  

Additional Information
 Earth MOID = 1.46781 au 
 Jupiter MOID = 2.09713 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 13.71   n/a E2021B10  
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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