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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2305993232754586 5.5777e-08  
a 2.216090452958775 1.0036e-08 AU
q 1.705061494189277 1.2466e-07 AU
i 5.841588088550504 6.0282e-06 deg
node 285.0830617343153 5.6408e-05 deg
peri 58.82203263032724 5.7826e-05 deg
M 324.8903909891119 1.6727e-05 deg
tp 2457118.017662196273
(2015-Apr-05.51766220)
5.6482e-05 JED
period 1204.979479479205
3.30
8.1853e-06
2.241e-08
d
yr
n .2987602744534645 2.0294e-09 deg/d
Q 2.727119411728273 1.235e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1006  
   data-arc span      26273 days (71.93 yr)  
   first obs. used      1942-09-07  
   last obs. used      2014-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52674  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:48:56  

Additional Information
 Earth MOID = .706361 AU 
 T_jup = 3.611 
[ 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 13.3 mag n/a MPO302101  
rotation period rot_per 9.7212 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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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