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JPL Small-Body Database Browser
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12584 Zeljkoandreic (1999 RF36)
Classification: Main-belt Asteroid          SPK-ID: 2012584
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1368169499146181 5.0104e-08  
a 2.371063852719156 8.5519e-09 au
q 2.046662128337318 1.2035e-07 au
i 7.357599520454816 5.1418e-06 deg
node 40.00207237551132 3.2126e-05 deg
peri 299.5048317285938 3.5085e-05 deg
M 170.7367363094397 1.4328e-05 deg
tp 2457968.033137347404
(2017-Aug-02.53313735)
5.3164e-05 TDB
period 1333.562275328243
3.65
7.2148e-06
1.975e-08
d
yr
n .2699536472051068 1.4605e-09 deg/d
Q 2.695465577100995 9.7219e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1505  
   data-arc span      15177 days (41.55 yr)  
   first obs. used      1977-10-18  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53537  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:03:57  

Additional Information
 Earth MOID = 1.04967 au 
 Jupiter MOID = 2.69871 au 
 T_jup = 3.521 
[ 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 14.6   n/a MPO384867  
rotation period rot_per 7.071 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.]

12584 Zeljkoandreic           Discovered 1999 Sept. 12 by K. Korlević at Visnjan.
Željko Andreić (b. 1957) is a renowned Croatian amateur astronomer and promoter of astronomy. He has been active in education and science for almost 40 years. He has written three popular astronomy books and more than 100 popular articles. A university teacher by profession, his field is plasma physics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-03-05Last Updated: 2015-03-09

Alternate Designations
 1999 RF36 = 1977 UX4 = 1988 VU11 = 1998 KP18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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