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4517 Ralpharvey (1975 SV)
Classification: Main-belt Asteroid          SPK-ID: 2004517
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746485446772217 3.8894e-08  
a 2.157920331544471 7.6471e-09 au
q 1.781042686110842 8.3966e-08 au
i 4.195510557086489 3.6653e-06 deg
node 32.09800107441783 5.6074e-05 deg
peri 284.487660889737 5.707e-05 deg
M 310.2502670256644 9.7066e-06 deg
tp 2458760.507297644426
(2019-Oct-04.00729764)
3.1184e-05 TDB
period 1157.847966374185
3.17
6.1546e-06
1.685e-08
d
yr
n .3109216498668165 1.6527e-09 deg/d
Q 2.534797976978101 8.9826e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2259  
   data-arc span      17753 days (48.61 yr)  
   first obs. used      1971-03-24  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46159  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:36:51  

Additional Information
 Earth MOID = .772657 au 
 Jupiter MOID = 2.75037 au 
 T_jup = 3.676 
[ 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 13.3   n/a MPO337289  
diameter diameter 3.445 km 0.430 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 3.600 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Owings, L.E. (2018) Minor Planet Bull. 45, 227-231.]
geometric albedo albedo 0.959   0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4517 Ralpharvey           Discovered 1975 Sept. 30 by S. J. Bus at Palomar.
An assistant professor at Case Western University, Ralph Harvey (b. 1960) leads the Antarctic Search for Meteorites, a program that has provided invaluable clues to the physical and chemical history of the solar system. His research interests focus on igneous processes that formed the martian meteorites.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1975 SV = 1975 VJ2 = 1977 DY4 = 1987 HZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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