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30718 Records (1955 RB1)
Classification: Main-belt Asteroid          SPK-ID: 2030718
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3170438147715475 5.5581e-08  
a 2.765424653421152 1.6145e-08 AU
q 1.888663871837226 1.5836e-07 AU
i 5.294447677355421 6.2623e-06 deg
node 278.3238643197966 6.3277e-05 deg
peri 54.75491631853676 6.3937e-05 deg
M 331.0784283427944 1.1235e-05 deg
tp 2457135.446169399783
(2015-Apr-22.94616940)
5.3186e-05 JED
period 1679.736549580572
4.60
1.471e-05
4.027e-08
d
yr
n .2143193229259026 1.8768e-09 deg/d
Q 3.642185435005079 2.1264e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      767  
   data-arc span      21448 days (58.72 yr)  
   first obs. used      1955-09-14  
   last obs. used      2014-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57492  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:28:10  

Additional Information
 Earth MOID = .884855 AU 
 T_jup = 3.258 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO259550  

30718 Records           Discovered 1955 Sept. 14 at the Goethe Link Observatory, Indiana University.
Brenda Records (b. 1946) served the Indiana University Astronomy Department for more than 20 years. Her personal warmth and Hoosier spirit helped generations of graduate students complete their degrees and made the department a home-away-from-home for faculty, students, staff and visitors.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071124/MPCPages.arcLast Updated: 2007-11-26

[ show close-approach data ]
Alternate Designations
 1955 RB1 = 1955 TJ = 1964 PH = 1978 VN13 = 2001 KW67 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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