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17682 (1997 AR12)
Classification: Main-belt Asteroid          SPK-ID: 2017682
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08986711085142793 3.6635e-08  
a 3.023767912603988 1.9751e-08 au
q 2.752030626413014 1.0972e-07 au
i 9.125668526858632 4.8076e-06 deg
node 317.2365454544715 2.5411e-05 deg
peri 83.85428707027422 3.754e-05 deg
M 157.9096586057375 2.8106e-05 deg
tp 2457758.082651744148
(2017-Jan-04.58265174)
0.00014759 TDB
period 1920.530055284963
5.26
1.8817e-05
5.152e-08
d
yr
n .1874482510749274 1.8366e-09 deg/d
Q 3.295505198794961 2.1526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1340  
   data-arc span      23947 days (65.56 yr)  
   first obs. used      1953-10-17  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48893  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:32:24  

Additional Information
 Earth MOID = 1.77839 au 
 Jupiter MOID = 2.07262 au 
 T_jup = 3.220 
[ 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 13.4   n/a MPO474001  
diameter diameter 7.586 km 0.742 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 21.079 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.194   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17682 (1997 AR12)          Discovered 1997-Jan-10 by Kobayashi, T. at Oizumi
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 AR12 = 1953 UG = 1998 FA112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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