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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1531382397517217 4.0528e-08  
a 2.806743265419525 1.2143e-08 au
q 2.376923542318179 1.1514e-07 au
i 8.128962199007558 4.4311e-06 deg
node 289.4555177687202 2.5556e-05 deg
peri 44.28132959844232 2.7883e-05 deg
M 338.8977412706116 1.0871e-05 deg
tp 2458701.176684184836
(2019-Aug-05.67668418)
5.1908e-05 TDB
period 1717.522601315929
4.70
1.1146e-05
3.052e-08
d
yr
n .209604228628011 1.3603e-09 deg/d
Q 3.23656298852087 1.4003e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2348  
   data-arc span      32518 days (89.03 yr)  
   first obs. used      1930-10-17  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43388  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:30:17  

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

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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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