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JPL Small-Body Database Browser
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11286 (1990 RO8)
Classification: Main-belt Asteroid          SPK-ID: 2011286
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1361616248586106 3.718e-08  
a 2.37514099539177 8.1271e-09 au
q 2.051737938190929 8.6775e-08 au
i 3.197240417155744 4.6908e-06 deg
node 159.2291476668493 5.7701e-05 deg
peri 324.7527501931978 5.9822e-05 deg
M 168.9941967502731 1.6435e-05 deg
tp 2457972.872721641077
(2017-Aug-07.37272164)
5.973e-05 TDB
period 1337.003427065001
3.66
6.8623e-06
1.879e-08
d
yr
n .269258846097556 1.382e-09 deg/d
Q 2.698544052592611 9.2337e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1437  
   data-arc span      10669 days (29.21 yr)  
   first obs. used      1990-08-16  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53923  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:30:26  

Additional Information
 Earth MOID = 1.06854 au 
 Jupiter MOID = 2.36166 au 
 T_jup = 3.527 
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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 14.6   n/a MPO299044  
diameter diameter 3.848 km 0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.806 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.]
geometric albedo albedo 0.191   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11286 (1990 RO8)          Discovered 1990-Sep-15 by Debehogne, H. at La Silla
Reference: 19990831/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1990 RO8 = 1998 XQ55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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