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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .098977125062765 1.5598e-08  
a 2.192509876192387 4.4328e-09 au
q 1.975501551975146 3.4335e-08 au
i 3.978171292970046 4.2103e-07 deg
node 136.1865340656042 1.0287e-05 deg
peri 26.7778542474972 1.4835e-05 deg
M 28.72522944936795 8.7288e-06 deg
tp 2459301.882434393009
(2021-Mar-28.38243439)
2.8682e-05 TDB
period 1185.798138829702
3.25
3.5962e-06
9.846e-09
d
yr
n .3035929878885578 9.2071e-10 deg/d
Q 2.409518200409628 4.8716e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3162  
   data-arc span      25977 days (71.12 yr)  
   first obs. used      1950-06-15  
   last obs. used      2021-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40724  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:47:18  

Additional Information
 Earth MOID = .985285 au 
 Jupiter MOID = 2.56093 au 
 T_jup = 3.662 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457084.5 (2015-Mar-03.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09870284909770399 1.5621e-08  
q 1.975934590323539 3.4386e-08 au
tp 2456930.478210868512
(2014-Sep-29.97821087)
2.7936e-05 TDB
node 136.2264489960955 1.029e-05 deg
peri 26.85829426148524 1.485e-05 deg
i 3.977387929779827 4.2087e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3162  
   data-arc span      25977 days (71.12 yr)  
   first obs. used      1950-06-15  
   last obs. used      2021-07-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40724  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 07:47:18  

Additional Information
 Jupiter MOID = 2.56093 au 
 T_jup = 3.662 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.440225958124751E-16 -5.335413577980312E-16 1.389226576977816E-13 7.195566183459152E-14 -5.17146293824414E-14 -2.005523566147499E-15
q -5.335413577980312E-16 1.182395508726825E-15 -3.063707441169429E-13 -1.545471068515751E-13 1.104437733587435E-13 4.297895129960213E-15
tp 1.389226576977816E-13 -3.063707441169429E-13 7.804084456815599E-10 -6.089511567713353E-11 2.863897668738494E-10 2.192033271256651E-12
node 7.195566183459152E-14 -1.545471068515751E-13 -6.089511567713353E-11 1.058840066077549E-10 -1.29498819861115E-10 -3.13630338720401E-12
peri -5.17146293824414E-14 1.104437733587435E-13 2.863897668738494E-10 -1.29498819861115E-10 2.205284248897434E-10 3.996996397792476E-12
i -2.005523566147499E-15 4.297895129960213E-15 2.192033271256651E-12 -3.13630338720401E-12 3.996996397792476E-12 1.771302308280062E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.25   n/a MPO614063  
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. 2020-October); 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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