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11752 Masatakesagai (1999 OU3)
Classification: Main-belt Asteroid          SPK-ID: 2011752
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .165893908813938 3.8829e-08  
a 2.584560142156204 1.1174e-08 au
q 2.155797357609204 1.0265e-07 au
i 14.40013454934993 4.146e-06 deg
node 137.7221040206672 2.0963e-05 deg
peri 131.7247891007956 2.6682e-05 deg
M 44.09157862597608 1.6113e-05 deg
tp 2458814.620481746067
(2019-Nov-27.12048175)
6.7813e-05 TDB
period 1517.673638747713
4.16
9.8424e-06
2.695e-08
d
yr
n .2372051479375032 1.5383e-09 deg/d
Q 3.013322926703204 1.3028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1528  
   data-arc span      15872 days (43.46 yr)  
   first obs. used      1977-02-18  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 00:27:36  

Additional Information
 Earth MOID = 1.16665 au 
 Jupiter MOID = 2.23939 au 
 T_jup = 3.360 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO473925  
diameter diameter 4.908 km 0.153 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.122 h n/a LCDB (Rev. 2019-August); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.243   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11752 Masatakesagai           Discovered 1999 July 23 by T. Okuni at Nanyo.
Masatake Sagai (b. 1950) became a member of the Nanyo Astronomical Club in 1985 and is an active popularizer of astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2020-02-05Last Updated: 2020-02-20

[ show close-approach data ]
Alternate Designations
 1999 OU3 = 1977 DK1 = 1990 KR1 = 1998 FR88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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