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7527 Marples (1993 BJ)
Classification: Main-belt Asteroid          SPK-ID: 2007527
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1862952634780137 4.1335e-08  
a 2.284407760295748 6.4161e-09 au
q 1.858833414700232 9.4315e-08 au
i 5.517209535125176 4.4732e-06 deg
node 325.9512116340508 3.6376e-05 deg
peri 22.99137574004622 3.766e-05 deg
M 324.9326162571219 8.471e-06 deg
tp 2458723.345635747656
2.9666e-05 TDB
period 1261.127125804981
n .2854589300584672 1.2026e-09 deg/d
Q 2.709982105891263 7.6114e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1803  
   data-arc span      25215 days (69.03 yr)  
   first obs. used      1950-10-13  
   last obs. used      2019-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47965  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:03:09  

Additional Information
 Earth MOID = .85262 au 
 Jupiter MOID = 2.70718 au 
 T_jup = 3.574 
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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 13.9   n/a MPO448988  
diameter diameter 4.398 km 0.125 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 7.85 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. (2018) Observatoire de Geneve web site,]
geometric albedo albedo 0.302   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

7527 Marples           Discovered 1993 Jan. 20 by T. Urata at Oohira.
Australian amateur astronomer Peter Marples (b. 1958) discovered the supernova 2008fa in NGC 6722. He lives in Loganholme, Queensland, and is a very active member of the Southern Astronomical Society. The name was suggested by T. Urata and I. Makino.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081113/MPCPages.arcLast Updated: 2008-11-17

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Alternate Designations
 1993 BJ = 1950 TA1 = 1974 QG2 = 1995 UJ3 
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