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2165 Young (1956 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2002165
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1761036764586923 3.3626e-08  
a 3.126432497192744 1.3836e-08 au
q 2.575856240237172 1.0417e-07 au
i .9424973795717603 4.0946e-06 deg
node 19.13217915549975 0.00022373 deg
peri 24.01291390745311 0.00022401 deg
M 119.1940319192082 1.2149e-05 deg
tp 2458331.965196636234
(2018-Aug-01.46519664)		 6.6433e-05 TDB
period 2019.165937553717
5.53		 1.3403e-05
3.67e-08		 d
yr
n .1782914387096641 1.1835e-09 deg/d
Q 3.677008754148317 1.6272e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2825  
   data-arc span      33149 days (90.76 yr)  
   first obs. used      1929-10-27  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45236  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:46:40  

Additional Information
 Earth MOID = 1.58474 au 
 Jupiter MOID = 1.73261 au 
 T_jup = 3.190 
[ 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 11.4   n/a MPO502174  
diameter diameter 27.115 km 0.284 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.389 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
geometric albedo albedo 0.073   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2165 Young (1956 RJ)          Discovered 1956-Sep-07 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1956 RJ = 1929 UD = 1942 DD = 1956 SF = 1973 QT = 1973 UN3 = 1976 GU5 = 1978 QA 
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