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11099 Sonodamasaki (1995 HL)
Classification: Main-belt Asteroid          SPK-ID: 2011099
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2220766409037624 2.796e-08  
a 2.377020262305464 9.037e-09 au
q 1.849139587092486 6.6408e-08 au
i 9.981963970739914 4.4938e-06 deg
node 54.07612781831828 1.907e-05 deg
peri 248.686009167182 2.2365e-05 deg
M 244.4084962767452 1.3943e-05 deg
tp 2459430.304704920073
(2021-Aug-03.80470492)
5.3199e-05 TDB
period 1338.59054331255
3.66
7.6336e-06
2.09e-08
d
yr
n .2689395960538644 1.5337e-09 deg/d
Q 2.904900937518442 1.1044e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2113  
   data-arc span      14093 days (38.58 yr)  
   first obs. used      1981-09-28  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:29:11  

Additional Information
 Earth MOID = .861531 au 
 Jupiter MOID = 2.38427 au 
 T_jup = 3.487 
[ 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 13.7   n/a MPO452327  
diameter diameter 9.536 km 0.065 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.251 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Fauerbach, M. (2019) Minor Planet Bull. 46, 15-19.]
geometric albedo albedo 0.039   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

11099 Sonodamasaki           Discovered 1995 Apr. 20 by K. Endate and K. Watanabe at Kitami.
Masaki Sonoda (b. 1954), an associate president of the Saga Astronomical Society since 1989, is active in organizing local star parties and is a volunteer member of the Saga City Observatory.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020526/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1995 HL = 1981 TS = 1984 JQ2 = 1992 SN23 = 2008 FP122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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