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18337 (1988 RB11)
Classification: Main-belt Asteroid          SPK-ID: 2018337
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2028890651368791 4.2861e-08  
a 3.181202930644637 1.7297e-08 au
q 2.535771642035447 1.3628e-07 au
i .9469543605958272 4.2576e-06 deg
node 162.8925973174924 0.00025688 deg
peri 243.8916894886204 0.00025705 deg
M 202.4742571626198 1.0031e-05 deg
tp 2460107.348049396810
(2023-Jun-11.84804940)
6.1405e-05 TDB
period 2072.456805487813
5.67
1.6902e-05
4.628e-08
d
yr
n .1737068772901463 1.4167e-09 deg/d
Q 3.826634219253828 2.0806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1123  
   data-arc span      11605 days (31.77 yr)  
   first obs. used      1988-09-14  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51431  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:26:51  

Additional Information
 Earth MOID = 1.54481 au 
 Jupiter MOID = 1.57291 au 
 T_jup = 3.167 
[ 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 14.08   n/a E2021B10  
diameter diameter 5.312 km 0.815 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.157   0.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18337 (1988 RB11)          Discovered 1988-Sep-14 by Bus, S. J. at Cerro Tololo
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 RB11 = 1990 AJ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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