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1513 Matra (1940 EB)
Classification: Main-belt Asteroid          SPK-ID: 2001513
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0987400489914079 4.8393e-08  
a 2.192396137052295 9.896e-09 AU
q 1.975918835071178 1.1053e-07 AU
i 3.97737681726526 4.4284e-06 deg
node 136.2263824901618 8.0594e-05 deg
peri 26.858165329991 8.5057e-05 deg
M 21.25920728569494 2.867e-05 deg
tp 2456930.480092149700
(2014-Sep-29.98009215)
9.4377e-05 JED
period 1185.705867926211
3.25
8.028e-06
2.198e-08
d
yr
n .3036166133086926 2.0557e-09 deg/d
Q 2.408873439033412 1.0873e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1298  
   data-arc span      23631 days (64.70 yr)  
   first obs. used      1950-06-15  
   last obs. used      2015-02-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46193  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:36:16  

Additional Information
 Earth MOID = .985709 AU 
 T_jup = 3.662 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.33 mag n/a PDS3 (MPC 17262)  
rotation period rot_per 24. h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 lower-limit; Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Binzel, R.P.; Mulholland, J.D. (1983) Icarus 56, 519-533.]

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 | Physical Parameters | Discovery Circumstances ]
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