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JPL Small-Body Database Browser
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3860 Plovdiv (1986 PM4)
Classification: Main-belt Asteroid          SPK-ID: 2003860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .153138243244456 4.0219e-08  
a 2.806743263920395 1.1955e-08 au
q 2.376923531245415 1.1405e-07 au
i 8.12896250983616 4.2891e-06 deg
node 289.4555178801905 2.5553e-05 deg
peri 44.28132828222873 2.7823e-05 deg
M 338.8977429950825 1.0579e-05 deg
tp 2458701.176675876905
(2019-Aug-05.67667588)
5.0486e-05 TDB
period 1717.522599939892
4.70
1.0974e-05
3.005e-08
d
yr
n .2096042287959407 1.3392e-09 deg/d
Q 3.236562996595375 1.3786e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2403  
   data-arc span      32548 days (89.11 yr)  
   first obs. used      1930-10-17  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42933  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:54:29  

Additional Information
 Earth MOID = 1.3732 au 
 Jupiter MOID = 2.12841 au 
 T_jup = 3.291 
[ 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 11.6   n/a MPO302086  
diameter diameter 12.812 km 0.184 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 6.114 h n/a LCDB (Rev. 2019-January); 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]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.172   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

3860 Plovdiv (1986 PM4)          Discovered 1986-Aug-08 by Elst, E. W. and Ivanova, V. at Rozhen
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1986 PM4 = 1930 UF1 = 1934 NK = 1957 JC1 = 1972 QP = 1979 BQ1 = 1986 RS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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