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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2028887838364452 4.3304e-08  
a 3.181164889775846 1.7495e-08 au
q 2.535742214106025 1.3778e-07 au
i .946948203168801 4.3018e-06 deg
node 162.8940772887086 0.000263 deg
peri 243.9393180920293 0.00026317 deg
M 167.6603222143546 9.9484e-06 deg
tp 2458035.326268757259
(2017-Oct-08.82626876)
5.4516e-05 TDB
period 2072.419631898084
5.67
1.7096e-05
4.681e-08
d
yr
n .1737099931205939 1.433e-09 deg/d
Q 3.826587565445667 2.1045e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1113  
   data-arc span      11592 days (31.74 yr)  
   first obs. used      1988-09-14  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51496  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:21:02  

Additional Information
 Earth MOID = 1.54569 au 
 Jupiter MOID = 1.57181 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 14.1   n/a MPO384911  
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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