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19994 Tresini (1990 TJ15)
Classification: Main-belt Asteroid          SPK-ID: 2019994
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1781082149406228 2.0638e-08  
a 2.773799339282614 1.2796e-08 au
q 2.279762890359509 5.7405e-08 au
i 8.078663978939343 6.9158e-07 deg
node 307.2706750846428 6.6968e-06 deg
peri 70.22685635605426 8.8128e-06 deg
M 236.6875791736283 1.1702e-05 deg
tp 2459974.483326792971
(2023-Jan-29.98332679)
5.7423e-05 TDB
period 1687.372579753707
4.62
1.1677e-05
3.197e-08
d
yr
n .2133494429858203 1.4764e-09 deg/d
Q 3.26783578820572 1.5076e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1817  
   data-arc span      13068 days (35.78 yr)  
   first obs. used      1985-09-07  
   last obs. used      2021-06-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44361  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:55:56  

Additional Information
 Earth MOID = 1.29542 au 
 Jupiter MOID = 2.28938 au 
 T_jup = 3.299 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.45   n/a MPCxxxxx  
diameter diameter 5.240 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.66 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Aznar, A. (2013) Posting on CALL web site. http://www.MinorPlanet.info/call.html]
geometric albedo albedo 0.281   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19994 Tresini           Discovered 1990 Oct. 13 by L. G. Karachkina and G. R. Kastel' at the Crimean Astrophysical Observatory.
Dominico Tresini (c. 1670-1734), architect and engineer, worked in St. Petersburg beginning in 1703 and is regarded as the city's first architect. He built the Peter and Paul fortress, the Summer Palace of Peter I and the House of 12 Boards, which now houses St. Petersburg University.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030318/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1990 TJ15 = 1999 RW103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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