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JPL Small-Body Database Browser
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2259 Sofievka (1971 OG)
Classification: Main-belt Asteroid          SPK-ID: 2002259
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1857590743307026 3.7336e-08  
a 2.293800933104704 8.7128e-09 au
q 1.867706595072273 8.7861e-08 au
i 4.681223980247427 3.9645e-06 deg
node 280.2705284580301 5.2125e-05 deg
peri 11.95740136698203 5.3657e-05 deg
M 31.05358947548513 1.5775e-05 deg
tp 2458891.043559443232
(2020-Feb-11.54355944)
5.5326e-05 TDB
period 1268.9134900667
3.47
7.2298e-06
1.979e-08
d
yr
n .2837072840805536 1.6165e-09 deg/d
Q 2.719895271137136 1.0331e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2323  
   data-arc span      32871 days (90.00 yr)  
   first obs. used      1929-05-12  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47682  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-29 19:32:56  

Additional Information
 Earth MOID = .851793 au 
 Jupiter MOID = 2.46238 au 
 T_jup = 3.569 
[ 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 12.6   n/a MPO384769  
diameter diameter 17.208 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 31.6 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:
[Pravec, P.; Wolf, M.; Sarounova, L. (2006) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.039   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2259 Sofievka (1971 OG)          Discovered 1971-Jul-19 by Burnasheva, B. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1971 OG = 1929 JM = 1936 KJ = 1956 AF = 1970 CJ = 1972 YC = 1972 YN1 = 1975 WE1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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