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JPL Small-Body Database Browser
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11706 Rijeka (1998 HV4)
Classification: Main-belt Asteroid          SPK-ID: 2011706
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05924804962246274 3.6987e-08  
a 2.909649204845729 1.5372e-08 au
q 2.73725816437307 1.0159e-07 au
i 2.031115388956835 3.8428e-06 deg
node 29.32654822373095 0.00012415 deg
peri 213.4067084624216 0.00013071 deg
M 56.79511095314042 4.1342e-05 deg
tp 2458314.498818630148
(2018-Jul-14.99881863)
0.00020784 TDB
period 1812.839583641195
4.96
1.4367e-05
3.933e-08
d
yr
n .1985834837503486 1.5737e-09 deg/d
Q 3.082040245318388 1.6283e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1518  
   data-arc span      11076 days (30.32 yr)  
   first obs. used      1989-07-05  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49791  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:32:56  

Additional Information
 Earth MOID = 1.7244 au 
 Jupiter MOID = 1.91449 au 
 T_jup = 3.280 
[ 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 14.1   n/a MPO347618  
rotation period rot_per 12.930 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.]

11706 Rijeka           Discovered 1998 Apr. 20 by K. Korlevic and M. Dusić at the Visnjan Observatory.
Rijeka is the principal seaport of Croatia, located on Kvarner Bay, an inlet of the Adriatic Sea. The city is an economical, cultural and educational center and known for its shipyards. In 1866 the first real self-propelled torpedo was invented in Rijeka by Giovanni Luppis, a naval officer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 1998 HV4 = 1990 TG14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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