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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09911426374527881 3.2762e-08  
a 2.192491264353988 5.1118e-09 au
q 1.975184106919587 7.1537e-08 au
i 3.977970848877136 2.9731e-06 deg
node 136.188204960742 5.8437e-05 deg
peri 26.89033723509654 6.1441e-05 deg
M 268.4135170289904 1.9902e-05 deg
tp 2459302.171383840735
(2021-Mar-28.67138384)
6.5824e-05 TDB
period 1185.783039807752
3.25
4.147e-06
1.135e-08
d
yr
n .3035968536523897 1.0618e-09 deg/d
Q 2.409798421788389 5.6185e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2623  
   data-arc span      25722 days (70.42 yr)  
   first obs. used      1950-06-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43263  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:01:05  

Additional Information
 Earth MOID = .984153 au 
 Jupiter MOID = 2.56225 au 
 T_jup = 3.662 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456751.5 (2014-Apr-04.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09906575076799633 3.2823e-08  
q 1.975689144808102 7.1732e-08 au
tp 2456930.689908435717
(2014-Sep-30.18990844)
6.4198e-05 TDB
node 136.2280974864498 5.8465e-05 deg
peri 26.9402538263902 6.147e-05 deg
i 3.976713888608992 2.9724e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2623  
   data-arc span      25722 days (70.42 yr)  
   first obs. used      1950-06-15  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43263  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:01:05  

Additional Information
 Jupiter MOID = 2.56225 au 
 T_jup = 3.662 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.077352786477225E-15 -2.349621529205776E-15 8.666335222002248E-13 -1.281941484175379E-14 2.663824713601687E-13 -1.977095340363026E-16
q -2.349621529205776E-15 5.145542991824932E-15 -1.861634264721259E-12 2.751507760455289E-14 -5.744953007416362E-13 4.667964807100727E-16
tp 8.666335222002248E-13 -1.861634264721259E-12 4.121321004575785E-9 -1.805559303536777E-11 1.237491105456871E-9 -6.399242128195754E-13
node -1.281941484175379E-14 2.751507760455289E-14 -1.805559303536777E-11 3.418181434823838E-9 -3.414824376030113E-9 3.612833883285319E-11
peri 2.663824713601687E-13 -5.744953007416362E-13 1.237491105456871E-9 -3.414824376030113E-9 3.778590867368785E-9 -3.624809855554039E-11
i -1.977095340363026E-16 4.667964807100727E-16 -6.399242128195754E-13 3.612833883285319E-11 -3.624809855554039E-11 8.835017838339959E-12

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. 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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