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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1763105093686181 3.3614e-08  
a 3.125695648022775 1.3786e-08 au
q 2.574602656188607 1.0413e-07 au
i .9425842696021274 4.0887e-06 deg
node 19.13167828559959 0.00022051 deg
peri 23.95855837753615 0.00022078 deg
M 154.9153854498172 1.2177e-05 deg
tp 2458331.918629792836
(2018-Aug-01.41862979)
6.5951e-05 TDB
period 2018.452152874581
5.53
1.3353e-05
3.656e-08
d
yr
n .1783544878620509 1.1799e-09 deg/d
Q 3.676788639856943 1.6216e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2917  
   data-arc span      33327 days (91.24 yr)  
   first obs. used      1929-10-27  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44955  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:00:49  

Additional Information
 Earth MOID = 1.58251 au 
 Jupiter MOID = 1.73404 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 11.43   n/a E2021B10  
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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1972-Jan-28 21:40 00:01 Jupiter 1.81274062337745 1.81274017768966 1.81274106906504 2.18183073323126 1.95598156400598 2441345.402750400 1.01104993113255 45.1718678377447 5.88888578760598 87.5631764880312 2316181.26311122 T 36 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:57 2021-Feb-24 01:00
1982-Jun-02 08:52 < 00:01 Jupiter 1.78910132507984 1.78910099499053 1.78910165516905 1.81334787687165 1.53015073491729 2445122.869488554 0.744118665991403 59.5984986833243 19.7576013234436 -89.3268625385902 3042473.3837976 T 36 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:57 2021-Feb-24 01:00
1992-Oct-11 14:11 < 00:01 Jupiter 1.9948152484212 1.99481485331561 1.9948156435268 2.64995013303992 2.48455462487558 2448907.091156587 0.492077792098675 44.9679049189673 8.59947356087818 85.0281098701539 3450566.06145956 T 36 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:57 2021-Feb-24 01:00
2055-Jul-16 00:06 < 00:01 Jupiter 1.84766545263448 1.8476651214419 1.84766578382695 2.43745385377787 2.24150045154984 2471829.503957923 0.891492340524687 41.6784370801664 6.15883726061794 88.9898095983228 3310924.24429989 T 36 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:57 2021-Feb-24 01:00
2065-Nov-14 11:45 00:01 Jupiter 1.76858334064539 1.76858296374152 1.76858371754916 1.7822109959644 1.48943674100376 2475603.989279819 1.13018907482402 60.5611628100319 21.9205965021004 -88.2246384209603 2995762.91318286 T 36 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:57 2021-Feb-24 01:00
2076-Mar-24 01:32 00:01 Jupiter 1.9475450751767 1.94754447517305 1.94754567518091 2.40693397203251 2.21889500338438 2479386.563792456 1.36568432307249 77.9917860931633 5.05206697489508 84.0244051854966 3114388.18822405 T 36 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:57 2021-Feb-24 01:00
2138-Dec-31 06:02 00:03 Jupiter 1.87744489164929 1.87744416547965 1.87744561781871 2.71463628228094 2.5430171110345 2502312.751450744 2.75391353522844 46.1561233698828 10.6199169973855 83.7660876210639 1571645.35468044 T 36 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:57 2021-Feb-24 01:00
2149-May-01 07:19 00:03 Jupiter 1.75217105333107 1.75217070926501 1.75217139739712 1.7931484418774 1.49951827224098 2506086.805062324 2.98615361874221 66.4361104361146 26.6386837891491 78.7391381342885 3097754.0388257 T 36 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:57 2021-Feb-24 01:00
2159-Sep-07 02:00 00:03 Jupiter 1.89159880561304 1.89159771853377 1.89159989269575 2.17299504116884 1.9561045239521 2509867.583499648 3.20768540373312 162.091659938234 3.12551464288679 88.0839005362753 2938271.73801173 T 36 CATAB v2.0f-lin.ifort 2021-Feb-24 01:00:57 2021-Feb-24 01:00

Alternate Designations
 1956 RJ = 1929 UD = 1942 DD = 1956 SF = 1973 QT = 1973 UN3 = 1976 GU5 = 1978 QA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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