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6181 Bobweber (1986 RW)
Classification: Main-belt Asteroid          SPK-ID: 2006181
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2387820669563229 7.009e-08  
a 2.429962445091718 1.6258e-08 AU
q 1.849730989826478 1.6373e-07 AU
i 7.569979560206818 6.8695e-06 deg
node 303.6631986489264 4.9431e-05 deg
peri 93.70841931488648 5.3494e-05 deg
M 130.2933501429152 1.5872e-05 deg
tp 2456499.753964568964
(2013-Jul-26.25396457)
6.0152e-05 JED
period 1383.559272652375
3.79
1.3885e-05
3.802e-08
d
yr
n .2601984657367487 2.6113e-09 deg/d
Q 3.010193900356959 2.014e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      22216 days (60.82 yr)  
   first obs. used      1954-03-28  
   last obs. used      2015-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52145  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:15:58  

Additional Information
 Earth MOID = .87527 AU 
 T_jup = 3.457 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO240249  
rotation period rot_per 2.75796 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm]

6181 Bobweber           Discovered 1986 Sept. 6 by E. F. Helin at Palomar.
Robert Weber (1926-2008), a physicist at the Massachusetts Institute of Technology Lincoln Laboratory for 34 years, led the team that developed the deep space satellite tracking network. Co-developer of the LINEAR project, he was responsible for the discoveries during its first year of operation, 1995--1996.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080321/MPCPages.arcLast Updated: 2008-03-26

Alternate Designations
 1986 RW = 1979 YU8 = 1990 WL2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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