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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09911426600078836 3.2923e-08  
a 2.192491264712773 5.1353e-09 au
q 1.975184102297626 7.1848e-08 au
i 3.97797093075698 2.9768e-06 deg
node 136.18820816 5.8736e-05 deg
peri 26.89033551774699 6.1765e-05 deg
M 268.4135152409598 2.008e-05 deg
tp 2459302.171389804274
(2021-Mar-28.67138980)
6.642e-05 TDB
period 1185.783040098819
3.25
4.166e-06
1.141e-08
d
yr
n .3035968535778678 1.0666e-09 deg/d
Q 2.409798427127919 5.6443e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2602  
   data-arc span      25706 days (70.38 yr)  
   first obs. used      1950-06-15  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43356  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:18:14  

Additional Information
 Earth MOID = .984153 au 
 Jupiter MOID = 2.56225 au 
 T_jup = 3.662 
[ 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 13.2   n/a MPO502168  
diameter diameter 6.603 km 0.271 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 34.48 h n/a LCDB (Rev. 2019-August); 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] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

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 ]
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