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2591 Dworetsky (1949 PS)
Classification: Main-belt Asteroid          SPK-ID: 2002591
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04146943870015415 3.0192e-08  
a 2.937295457538868 1.1799e-08 au
q 2.815487463618219 8.7074e-08 au
i 1.541083394421325 4.9883e-06 deg
node 356.0434715905271 0.00012239 deg
peri 270.2641850319521 0.00013983 deg
M 75.91845253050646 6.8445e-05 deg
tp 2458612.738466946882
(2019-May-09.23846695)
0.00034962 TDB
period 1838.738109724105
5.03
1.1079e-05
3.033e-08
d
yr
n .1957864462025082 1.1797e-09 deg/d
Q 3.059103451459517 1.2288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2775  
   data-arc span      31466 days (86.15 yr)  
   first obs. used      1934-09-02  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:07:54  

Additional Information
 Earth MOID = 1.80011 au 
 Jupiter MOID = 1.96627 au 
 T_jup = 3.272 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456357.5 (2013-Mar-06.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04130423317913765 2.9243e-08  
q 2.816345556899612 8.4351e-08 au
tp 2456795.818985527206
(2014-May-18.31898553)
0.00035729 TDB
node 356.2934893412015 0.00012205 deg
peri 274.7581248033487 0.00014021 deg
i 1.543540131627986 4.9941e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2775  
   data-arc span      31466 days (86.15 yr)  
   first obs. used      1934-09-02  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45676  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:07:54  

Additional Information
 Jupiter MOID = 1.96627 au 
 T_jup = 3.272 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.551446450901131E-16 -2.445308983800989E-15 -1.505931071957127E-12 9.259884283992489E-16 -3.173896094630075E-13 1.623663894196434E-16
q -2.445308983800989E-15 7.115163702837855E-15 3.933443506380213E-12 -5.514691262700375E-15 8.323217280819523E-13 -3.315111759752523E-16
tp -1.505931071957127E-12 3.933443506380213E-12 1.276570810826712E-7 3.640016308421995E-11 2.466100706496184E-8 -1.881523478916239E-12
node 9.259884283992489E-16 -5.514691262700375E-15 3.640016308421995E-11 1.48966263631804E-8 -1.488413701630723E-8 1.60991962282616E-10
peri -3.173896094630075E-13 8.323217280819523E-13 2.466100706496184E-8 -1.488413701630723E-8 1.965817973296662E-8 -1.613032582301586E-10
i 1.623663894196434E-16 -3.315111759752523E-16 -1.881523478916239E-12 1.60991962282616E-10 -1.613032582301586E-10 2.494100629641261E-11

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 11.5   n/a MPO452198  
diameter diameter 12.925 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 12.77 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:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.291   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2591 Dworetsky (1949 PS)          Discovered 1949-Aug-02 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1949 PS = 1929 RH1 = 1934 RD = 1949 QU = 1952 DC1 = 1962 BD = 1962 EH = 1969 OC = 1973 GQ = 1975 TU4 = 1978 GX3 = 1979 OD14 = 1981 YL2 = 1982 BO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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