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3159 Prokof'ev (1976 US2)
Classification: Main-belt Asteroid          SPK-ID: 2003159
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1072064439144245 3.2688e-08  
a 2.570172020803422 1.0593e-08 au
q 2.294633018204737 8.7266e-08 au
i 14.59664809659217 5.4312e-06 deg
node 222.9456863936725 1.1522e-05 deg
peri 58.88098333652315 2.744e-05 deg
M 309.2208004142934 2.4615e-05 deg
tp 2459212.787813669275
(2020-Dec-29.28781367)
0.00010293 TDB
period 1505.018069297233
4.12
9.3043e-06
2.547e-08
d
yr
n .2391997859322059 1.4788e-09 deg/d
Q 2.845711023402107 1.1728e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2785  
   data-arc span      17469 days (47.83 yr)  
   first obs. used      1972-10-05  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39574  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:00:27  

Additional Information
 Earth MOID = 1.31399 au 
 Jupiter MOID = 2.27387 au 
 T_jup = 3.377 
[ 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 12.2   n/a MPO473809  
diameter diameter 9.805 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 3.89 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:
[Moravec, P.; Letfullina, A.; Ditteon, R. (2013) Minor Planet Bull. 40, 17-20.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.116   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

3159 Prokof'ev (1976 US2)          Discovered 1976-Oct-26 by Smirnova, T. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1976 US2 = 1972 TT4 = 1976 YG = 1983 JR 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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