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8245 Molnar (1977 RC9)
Classification: Main-belt Asteroid          SPK-ID: 2008245
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1439281441313509 5.8013e-08  
a 2.410745912043487 1.7056e-08 au
q 2.063771726950827 1.3821e-07 au
i 1.458039404416151 5.412e-06 deg
node 318.9337619381334 0.0002281 deg
peri 256.8472111988514 0.00022912 deg
M 252.359444928756 2.5466e-05 deg
tp 2458009.288823280657
(2017-Sep-12.78882328)
9.9516e-05 JED
period 1367.179649748491
3.74
1.4509e-05
3.972e-08
d
yr
n .2633157976468026 2.7944e-09 deg/d
Q 2.757720097136148 1.9511e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1090  
   data-arc span      14033 days (38.42 yr)  
   first obs. used      1977-09-08  
   last obs. used      2016-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56021  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:28:50  

Additional Information
 Earth MOID = 1.05714 au 
 Jupiter MOID = 2.21542 au 
 T_jup = 3.505 
[ 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 14.5 mag n/a MPO358711  
rotation period rot_per 4.7157 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

8245 Molnar           Discovered 1977 Sept. 8 by S. J. Bus at Palomar.
Lawrence A. Molnar (b. 1959) is a professor of physics and astronomy and Observatory Director at Calvin College, Grand Rapids, MI. He engages and trains students in the techniques of minor-planet lightcurve photometry, following through with the publication of new results.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

[ show close-approach data ]
Alternate Designations
 1977 RC9 = 1991 EV3 = 1992 RM3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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