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5985 (1942 RJ)
Classification: Main-belt Asteroid          SPK-ID: 2005985
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2306115668563878 7.1475e-08  
a 2.215844011297175 1.0289e-08 AU
q 1.70484475194259 1.582e-07 AU
i 5.84169153859289 7.1186e-06 deg
node 285.0831445705326 6.4198e-05 deg
peri 58.8510863636819 6.5595e-05 deg
M 265.1076708802459 1.6202e-05 deg
tp 2457118.067323487826
(2015-Apr-05.56732349)
5.5432e-05 JED
period 1204.778484374012
3.30
8.3915e-06
2.297e-08
d
yr
n .2988101171038522 2.0813e-09 deg/d
Q 2.72684327065176 1.2662e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      966  
   data-arc span      26146 days (71.58 yr)  
   first obs. used      1942-09-07  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55367  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:49:33  

Additional Information
 Earth MOID = .704454 AU 
 T_jup = 3.612 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.2 mag n/a MPO263402  
rotation period rot_per 9.7212 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2008) http://www.asu.cas.cz/~ppravec/neo.htm]
[Chirony, V.; Galad, A.; Pravec, P. Kusnirak, P.; et al. (2011) Planet. Space Sci. 59, 1482-1489.]

5985 (1942 RJ)          Discovered 1942-Sep-07 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1942 RJ = 1965 OK = 1985 TS3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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