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8041 Masumoto (1993 VR2)
Classification: Main-belt Asteroid          SPK-ID: 2008041
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1866762599048642 6.0905e-08  
a 2.624132084678344 1.5244e-08 AU
q 2.134268921614237 1.5613e-07 AU
i 11.43324712727922 6.7212e-06 deg
node 247.8152391993809 3.1791e-05 deg
peri 105.4089720127083 3.6725e-05 deg
M 31.3719073638937 1.7984e-05 deg
tp 2456865.194519781998
(2014-Jul-26.69451978)
7.7086e-05 JED
period 1552.66214175239
4.25
1.353e-05
3.704e-08
d
yr
n .2318598427303 2.0204e-09 deg/d
Q 3.113995247742452 1.809e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1074  
   data-arc span      8272 days (22.65 yr)  
   first obs. used      1992-05-27  
   last obs. used      2015-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48479  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:21:49  

Additional Information
 Earth MOID = 1.16415 AU 
 T_jup = 3.351 
[ 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 12.4 mag n/a MPO266000  
rotation period rot_per 34.0 h n/a LCDB (Rev. 2015-Feb); 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:
[Warner, B.D. (2010) Minor Planet Bul. 37, 150-151.]

8041 Masumoto           Discovered 1993 Nov. 15 by F. Uto at Kashihara.
Named in honor of Takeji Masumoto, who built the discoverer's observatory. Initially, he had to make a great effort to secure the land for the observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981208/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1993 VR2 = 1959 XH = 1976 YL4 = 1992 KS 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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