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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1018062685791471 2.9366e-08  
a 2.746827377983905 1.2203e-08 au
q 2.467183132200321 8.3767e-08 au
i 7.254947756379047 1.8616e-06 deg
node 349.6860752680212 1.1252e-05 deg
peri 307.0543163592038 1.0718e-05 deg
M 309.2157097349145 1.2944e-05 deg
tp 2459435.069944221285
(2021-Aug-08.56994422)
6.01e-05 TDB
period 1662.820913295687
4.55
1.1081e-05
3.034e-08
d
yr
n .216499562353041 1.4428e-09 deg/d
Q 3.026471623767488 1.3446e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2090  
   data-arc span      12702 days (34.78 yr)  
   first obs. used      1985-09-10  
   last obs. used      2020-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4818  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:58:51  

Additional Information
 Earth MOID = 1.45798 au 
 Jupiter MOID = 2.19884 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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