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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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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2501489482902536 4.5963e-08  
a 2.401863936297971 8.7477e-09 au
q 1.801040198696745 1.1007e-07 au
i 27.0872001658194 5.7208e-06 deg
node 112.1823599065487 7.9762e-06 deg
peri 354.8676305117454 1.0869e-05 deg
M 44.53031196488521 6.5968e-06 deg
tp 2458832.320031905014
(2019-Dec-14.82003191)
2.4903e-05 TDB
period 1359.630908535702
3.72
7.4277e-06
2.034e-08
d
yr
n .2647777405911678 1.4465e-09 deg/d
Q 3.002687673899197 1.0936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2324  
   data-arc span      16523 days (45.24 yr)  
   first obs. used      1974-11-09  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .31538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:11:57  

Additional Information
 Earth MOID = .818538 au 
 Jupiter MOID = 2.14833 au 
 T_jup = 3.338 
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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-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:
[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

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