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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2484882024502395 1.616e-08  
a 3.946659433252091 3.1177e-08 au
q 2.965961124999998 6.1513e-08 au
i 12.10281488733894 3.0269e-07 deg
node 269.6391350598403 3.8538e-06 deg
peri 115.1783219113936 8.607e-06 deg
M 271.0341351696192 5.948e-06 deg
tp 2459908.223812687724
(2022-Nov-24.72381269)
5.3446e-05 TDB
period 2863.801448491916
7.84
3.3935e-05
9.291e-08
d
yr
n .1257070388694638 1.4896e-09 deg/d
Q 4.927357741504183 3.8925e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1365  
   data-arc span      15951 days (43.67 yr)  
   first obs. used      1976-12-16  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47415  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:56:27  

Additional Information
 Earth MOID = 1.99616 au 
 Jupiter MOID = .928379 au 
 T_jup = 2.968 
[ 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 12.04   n/a E2021B10  
diameter diameter 16.739 km 1.036 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
rotation period rot_per 4.8 h n/a LCDB (Rev. 2020-October); 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] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1906-Jun-15 18:26 00:01 Jupiter 1.8438789103421 1.8438780653983 1.84387975528811 5.58658621545182 5.50374469781943 2417377.267741367 1.44951452201617 116.991905294801 15.6156132206868 -71.0378566371656 6838213.45523251 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 22:57:15 2021-Apr-12 22:57
1930-Jan-21 05:32 00:02 Jupiter 1.89297415853421 1.8929731813309 1.89297513574084 5.73540189121705 5.65684744317015 2425997.730845238 1.78380021689552 139.857263246167 11.3253736038667 -70.7679421435839 8779582.24097272 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 22:57:15 2021-Apr-12 22:57
2142-Aug-09 08:54 00:01 Jupiter 1.92821690223131 1.92821623044341 1.92821757401955 5.33501041766442 5.25202636492603 2503629.870865061 1.08121654124941 64.2673489727583 20.4086889307173 -65.2524280790765 5222887.9457276 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 22:57:15 2021-Apr-12 22:57
2166-Aug-03 22:13 00:01 Jupiter 1.88523953439161 1.88523858982303 1.88524047896116 5.30901973273597 5.22370625940852 2512390.425747154 1.30170167566125 88.4217296967169 15.8995964246685 -60.4057120761204 5921490.43062776 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 22:57:15 2021-Apr-12 22:57
2190-Feb-28 08:09 00:01 Jupiter 1.94847993502512 1.94847900693397 1.94848086311738 5.45633553758643 5.37607465832837 2520999.839607723 1.37826187939468 88.4525320874062 11.8938140202972 -60.2712042852902 7612491.42617827 T 29 CATAB v2.0f-lin.ifort 2021-Apr-12 22:57:15 2021-Apr-12 22:57

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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