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2075 Martinez (1974 VA)
Classification: Main-belt Asteroid          SPK-ID: 2002075
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2501940748135338 4.9311e-08  
a 2.401883802721264 1.1184e-08 au
q 1.800946706889805 1.199e-07 au
i 27.08635694280068 5.9433e-06 deg
node 112.1836414355008 1.0114e-05 deg
peri 354.9132809295359 1.3868e-05 deg
M 298.592417016857 1.2362e-05 deg
tp 2458832.424121431268
(2019-Dec-14.92412143)
4.7527e-05 TDB
period 1359.647777346585
3.72
9.4963e-06
2.6e-08
d
yr
n .2647744555597748 1.8493e-09 deg/d
Q 3.002820898552723 1.3982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2022  
   data-arc span      16428 days (44.98 yr)  
   first obs. used      1974-11-09  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .32637  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:12:06  

Additional Information
 Earth MOID = .81866 au 
 Jupiter MOID = 2.149 au 
 T_jup = 3.338 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8   n/a MPO452190  
diameter diameter 6.284 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.755 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:
[Menke, J.; Cooney, W.; Gross, J.; Terrell, D. (2008) Minor Planet Bull. 35, 155-160.]
geometric albedo albedo 0.408   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2075 Martinez           Discovered 1974 Nov. 9 at the El Leoncito Station of the Felix Aguilar Observatory.
Named in memory of Hugo Arturo Martinez (1890-1976), astronomer at the La Plata Observatory for many years.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5013Last Updated: 2006-03-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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