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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 | 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.

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1777037825424081 5.3285e-08  
a 2.774673889740545 1.3547e-08 au
q 2.281603844211994 1.4611e-07 au
i 8.078606962820183 4.6645e-06 deg
node 307.2713072831001 2.9205e-05 deg
peri 70.24602560045724 3.1348e-05 deg
M 152.1830523523592 1.3334e-05 deg
tp 2458286.858433724373
5.9945e-05 TDB
period 1688.170659531675
n .2132485824033156 1.5618e-09 deg/d
Q 3.267743935269096 1.5955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1675  
   data-arc span      12695 days (34.76 yr)  
   first obs. used      1985-09-07  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44754  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:05:24  

Additional Information
 Earth MOID = 1.29803 au 
 Jupiter MOID = 2.28769 au 
 T_jup = 3.298 
[ 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 13.44   n/a E2021B10  
diameter diameter 5.240 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
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.]
geometric albedo albedo 0.281   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1980-Apr-17 17:02 00:03 Eunom 0.0189119154093774 0.0189083075931888 0.0189155234811879 1.34805865998076 1.3480581093637 2444347.209507140 3.31823063742085 209.779704534076 32.7839885281852 -32.239242294055 47001.0173113196 T 30 CATAB v2.0f-lin.ifort 2020-Nov-13 02:05:28 2020-Nov-13 02:05

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