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JPL Small-Body Database Browser
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11031 (1988 RC5)
Classification: Main-belt Asteroid          SPK-ID: 2011031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1180724313655752 3.7327e-08  
a 2.408985799500138 8.3256e-09 au
q 2.124550989028013 9.0369e-08 au
i 5.762612237510174 3.5669e-06 deg
node 49.55641696482567 4.0381e-05 deg
peri 289.6769049835508 4.3455e-05 deg
M 172.3340990197644 1.4901e-05 deg
tp 2458346.739760648553
(2018-Aug-16.23976065)
5.6506e-05 TDB
period 1365.682633357019
3.74
7.0798e-06
1.938e-08
d
yr
n .2636044357649002 1.3666e-09 deg/d
Q 2.693420609972264 9.3086e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2741  
   data-arc span      11450 days (31.35 yr)  
   first obs. used      1988-09-02  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40852  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:18:48  

Additional Information
 Earth MOID = 1.12446 au 
 Jupiter MOID = 2.66426 au 
 T_jup = 3.504 
[ 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 14.2   n/a MPO458936  
diameter diameter 3.573 km 0.338 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.408 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.381   0.114 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11031 (1988 RC5)          Discovered 1988-Sep-02 by Debehogne, H. at La Silla
Reference: 19990728/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1988 RC5 = 1996 VR38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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