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7456 Doressoundiram (1982 OD)
Classification: Main-belt Asteroid          SPK-ID: 2007456
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3008389904172517 5.0083e-08  
a 2.620002076834557 1.1406e-08 au
q 1.831803297148546 1.3312e-07 au
i 14.79703804536369 4.968e-06 deg
node 119.9211795735038 1.6853e-05 deg
peri 203.8575850412599 1.7725e-05 deg
M 320.0911746617304 5.9538e-06 deg
tp 2459172.218594268239
(2020-Nov-18.71859427)
2.6075e-05 TDB
period 1548.998082819707
4.24
1.0116e-05
2.77e-08
d
yr
n .2324082928138147 1.5177e-09 deg/d
Q 3.408200856520568 1.4838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1751  
   data-arc span      13849 days (37.92 yr)  
   first obs. used      1982-07-17  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50205  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:40:53  

Additional Information
 Earth MOID = .827746 au 
 Jupiter MOID = 1.9491 au 
 T_jup = 3.295 
[ 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 13.2   n/a MPO384823  
diameter diameter 8.566 km 0.327 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 14.786 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:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.152   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7456 Doressoundiram           Discovered 1982 July 17 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Named in honor of Alain Doressoundiram (b. 1968), French planetary scientist. Doressoundiram has worked on the collisional evolution of the population of minor planets, in particular the formation and evolution of binary systems during a family-forming collision. He has contributed to the spectroscopic characterization of a number of minor planet families and helped plan the Rosetta and DS4-Champollion space missions. Name suggested and citation prepared by M. A. Barucci and M. Fulchignoni.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990728/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1982 OD = 1982 OU = 1990 HJ7 = 1991 XT6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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