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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1017182801519902 3.7918e-08  
a 2.747028332171078 1.2432e-08 au
q 2.467605334693846 1.0635e-07 au
i 7.254758268096341 5.2858e-06 deg
node 349.6854943228703 2.772e-05 deg
peri 306.9971311039091 3.7285e-05 deg
M 265.9644814337807 2.5828e-05 deg
tp 2459434.892739645389
(2021-Aug-08.39273965)
0.0001195 TDB
period 1663.003391236868
4.55
1.1289e-05
3.091e-08
d
yr
n .2164758063014219 1.4696e-09 deg/d
Q 3.02645132964831 1.3697e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2055  
   data-arc span      12702 days (34.78 yr)  
   first obs. used      1985-09-10  
   last obs. used      2020-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47841  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:56:57  

Additional Information
 Earth MOID = 1.46037 au 
 Jupiter MOID = 2.19945 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 13.68   n/a E2021B10  
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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