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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2388057584644112 6.7918e-08  
a 2.430138403528554 1.5331e-08 au
q 1.849807358900424 1.5921e-07 au
i 7.569535499464394 6.3173e-06 deg
node 303.6599087808759 4.8839e-05 deg
peri 93.62433177435997 5.1574e-05 deg
M 286.5383533883244 1.5177e-05 deg
tp 2457882.859950913070
(2017-May-09.35995091)
5.9622e-05 JED
period 1383.709554810735
3.79
1.3094e-05
3.585e-08
d
yr
n .2601702060583379 2.462e-09 deg/d
Q 3.010469448156684 1.8992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      997  
   data-arc span      22326 days (61.13 yr)  
   first obs. used      1954-03-28  
   last obs. used      2015-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51393  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:17:26  

Additional Information
 Earth MOID = .874186 au 
 Jupiter MOID = 2.48426 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 13.6 mag n/a MPO337306  
rotation period rot_per 2.75796 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2009) http://www.asu.cas.cz/~ppravec/neo.htm]
[Oey, J. (2016) Minor Planet Bul. 43, 45-51.]

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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