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JPL Small-Body Database Browser
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1513 Matra (1940 EB)
Classification: Main-belt Asteroid          SPK-ID: 2001513
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09917410022802321 3.3655e-08  
a 2.192273310826213 5.2948e-09 au
q 1.974856577771114 7.3299e-08 au
i 3.97795972847165 3.0299e-06 deg
node 136.1912026478478 6.0043e-05 deg
peri 27.01327455656125 6.3202e-05 deg
M 146.8194559896425 2.0649e-05 deg
tp 2458116.972051708334
6.761e-05 TDB
period 1185.606227810023
n .3036421297018398 1.1e-09 deg/d
Q 2.409690043881312 5.8199e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2368  
   data-arc span      25367 days (69.45 yr)  
   first obs. used      1950-06-15  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4386  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:23:23  

Additional Information
 Earth MOID = .984287 au 
 Jupiter MOID = 2.56369 au 
 T_jup = 3.662 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.33   n/a PDS3 (MPC 17262)  
diameter diameter 6.603 km 0.271 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 34.48 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:
[Rowe, B. (2019) Minor Planet Bull. 46, 92-94.]
geometric albedo albedo 0.189   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

1513 Matra           Discovered 1940 Mar. 10 by G. Kulin at Budapest.
Named for the mountain in northern Hungary where an outstation of the Konkoly Observatory is located.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5182Last Updated: 2006-03-21

Alternate Designations
 1940 EB = 1940 EO 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2019-Dec-11 06:18 UT
(server date/time)  
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