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11835 (1985 RA4)
Classification: Main-belt Asteroid          SPK-ID: 2011835
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1014181582579341 4.2106e-08  
a 2.747995365524514 1.4292e-08 au
q 2.469298736651679 1.1511e-07 au
i 7.253088243924805 5.3683e-06 deg
node 349.6905209990095 3.2693e-05 deg
peri 306.8495759429555 4.1196e-05 deg
M 179.5410236654226 2.5921e-05 deg
tp 2457770.680536474704
(2017-Jan-17.18053647)
0.00011986 TDB
period 1663.881606388766
4.56
1.2981e-05
3.554e-08
d
yr
n .2163615479717527 1.6879e-09 deg/d
Q 3.026691994397349 1.5742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1782  
   data-arc span      12286 days (33.64 yr)  
   first obs. used      1985-09-10  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48943  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:14:23  

Additional Information
 Earth MOID = 1.46135 au 
 Jupiter MOID = 2.1976 au 
 T_jup = 3.328 
[ 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 13.6   n/a MPO340783  
diameter diameter 7.237 km 0.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.161   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11835 (1985 RA4)          Discovered 1985-Sep-10 by Debehogne, H. at La Silla
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1985 RA4 = 1994 PL28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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