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JPL Small-Body Database Browser
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11739 Baton Rouge (1998 SG27)
Classification: Outer Main-belt Asteroid          SPK-ID: 2011739
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.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2487424966889882 5.2532e-08  
a 3.9430136717132 3.7528e-08 au
q 2.962218606532444 2.0685e-07 au
i 12.10776731814964 5.2196e-06 deg
node 269.6349982564057 2.8855e-05 deg
peri 115.3982498232522 3.0728e-05 deg
M 245.632908928704 1.3038e-05 deg
tp 2459909.030320055059
0.00011253 TDB
period 2859.834172191427
n .1258814246995797 1.7971e-09 deg/d
Q 4.923808736893956 4.6863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1234  
   data-arc span      15544 days (42.56 yr)  
   first obs. used      1976-12-16  
   last obs. used      2019-07-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49509  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:34:47  

Additional Information
 Earth MOID = 1.99356 au 
 Jupiter MOID = .927926 au 
 T_jup = 2.968 
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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 12.0   n/a MPO350895  
diameter diameter 16.739 km 1.036 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (  
rotation period rot_per 4.8 h n/a LCDB (Rev. 2019-August); 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:
[Hasegawa, S.; Kuroda, D.; Kitazato, K.; Kasuga, T.; et al. (2018) Pub. Astron. Soc. Japan 70, A114.]
geometric albedo albedo 0.076   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (  

11739 Baton Rouge           Discovered 1998 Sept. 25 by W. R. Cooney, Jr., and M. Collier at Baton Rouge.
Baton Rouge, the Louisiana state capital, is located on the banks of the Mississippi river and derives its name, French for "red stick", from an Indian marker at the site seen by a French expedition in 1699. The city is home to the Highland Road Park Observatory, where this minor planet was discovered.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000124/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1998 SG27 = 1976 YA2 = 1984 YO4 = 1998 QC65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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