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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .238782065815216 7.062e-08  
a 2.429962444717044 1.6453e-08 AU
q 1.849730992314115 1.6483e-07 AU
i 7.569979446149336 6.9749e-06 deg
node 303.6631989638137 4.9534e-05 deg
peri 93.70841988845775 5.3988e-05 deg
M 130.2933496769573 1.6247e-05 deg
tp 2456499.753966475557
(2013-Jul-26.25396648)
6.1784e-05 JED
period 1383.55927233238
3.79
1.4051e-05
3.847e-08
d
yr
n .2601984657969285 2.6426e-09 deg/d
Q 3.010193897119972 2.0381e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      917  
   data-arc span      21956 days (60.11 yr)  
   first obs. used      1954-03-28  
   last obs. used      2014-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52214  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:06:24  

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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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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