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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1656113933620068 1.56e-08  
a 2.584017794457968 9.132e-09 au
q 2.156075007045564 3.8573e-08 au
i 14.40087257399278 9.7948e-07 deg
node 137.7233874411026 3.5153e-06 deg
peri 131.6557181283611 9.7973e-06 deg
M 138.1435853919016 7.2131e-06 deg
tp 2458814.303085175617
(2019-Nov-26.80308518)
2.9318e-05 TDB
period 1517.195957685522
4.15
8.0428e-06
2.202e-08
d
yr
n .237279830714273 1.2578e-09 deg/d
Q 3.011960581870372 1.0644e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1976  
   data-arc span      16065 days (43.98 yr)  
   first obs. used      1977-02-18  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47704  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:38:15  

Additional Information
 Earth MOID = 1.16676 au 
 Jupiter MOID = 2.23874 au 
 T_jup = 3.360 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.89   n/a E2021B10  
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. 2020-October); 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

Alternate Designations
 1999 OU3 = 1977 DK1 = 1990 KR1 = 1998 FR88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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