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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1021381343106478 2.9238e-08  
a 2.747835117562376 1.1812e-08 au
q 2.467176365261275 8.3226e-08 au
i 7.25503757050095 1.842e-06 deg
node 349.6809863158998 1.1153e-05 deg
peri 307.0043683176959 1.066e-05 deg
M 351.7032524750225 1.2491e-05 deg
tp 2459434.843328019067
(2021-Aug-08.34332802)
5.7766e-05 TDB
period 1663.73606588705
4.56
1.0728e-05
2.937e-08
d
yr
n .216380474873014 1.3953e-09 deg/d
Q 3.028493869863476 1.3019e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2174  
   data-arc span      13069 days (35.78 yr)  
   first obs. used      1985-09-10  
   last obs. used      2021-06-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47535  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:48:28  

Additional Information
 Earth MOID = 1.45948 au 
 Jupiter MOID = 2.19592 au 
 T_jup = 3.328 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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

Alternate Designations
 1985 RA4 = 1994 PL28 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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