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190310 De Martin (1997 TW)
Classification: Main-belt Asteroid          SPK-ID: 2190310
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2357923140962221 4.0698e-08  
a 3.125476481543818 2.0545e-08 au
q 2.388513149307283 1.2912e-07 au
i 16.89789381446423 5.1002e-06 deg
node 196.0896554008484 1.3595e-05 deg
peri 160.4305985397674 1.6983e-05 deg
M 86.12450154506686 8.3051e-06 deg
tp 2458717.666938366603
(2019-Aug-22.16693837)
4.7251e-05 TDB
period 2018.239862869538
5.53
1.99e-05
5.448e-08
d
yr
n .1783732482065591 1.7588e-09 deg/d
Q 3.862439813780353 2.5389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      586  
   data-arc span      8444 days (23.12 yr)  
   first obs. used      1997-10-02  
   last obs. used      2020-11-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48651  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:07:07  

Additional Information
 Earth MOID = 1.39064 au 
 Jupiter MOID = 1.65035 au 
 T_jup = 3.106 
[ 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 15.3   n/a MPO503008  
diameter diameter 6.356 km 1.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.030   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

190310 De Martin           Discovered 1997 Oct. 2 by V. Giuliani at Sormano.
Davide De Martin (b. 1971) is an Italian amateur astronomer, author and popularizer of astronomy. He pioneered the creation of color images from Digitized Sky Survey data, and has produced a series of Hubble Telescope's most iconic images.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110218/MPCPages.arcLast Updated: 2011-02-22

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