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33662 Tacescu (1999 JW91)
Classification: Main-belt Asteroid          SPK-ID: 2033662
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1044445587836171 3.4796e-08  
a 2.454963211262465 9.2724e-09 au
q 2.198555661832145 8.317e-08 au
i 7.043765124162139 4.9134e-06 deg
node 144.4026106630735 2.6407e-05 deg
peri 144.4655138583652 3.516e-05 deg
M 221.3794101022054 2.3062e-05 deg
tp 2459937.492384172170
(2022-Dec-23.99238417)
9.0511e-05 TDB
period 1404.966307282175
3.85
7.9598e-06
2.179e-08
d
yr
n .256233902645252 1.4517e-09 deg/d
Q 2.711370760692785 1.0241e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1662  
   data-arc span      11013 days (30.15 yr)  
   first obs. used      1991-03-14  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51628  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 20:08:35  

Additional Information
 Earth MOID = 1.18638 au 
 Jupiter MOID = 2.44502 au 
 T_jup = 3.475 
[ 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 14.62   n/a MPCxxxxx  
diameter diameter 2.869 km 0.704 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.340   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

33662 Tacescu           Discovered 1999 May 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Alex Cristian Tacescu (b. 1998) was awarded second place in the 2016 Intel International Science and Engineering Fair for his engineering mechanics project. He attends the Clovis North High School, Fresno, California, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-05-29Last Updated: 2018-07-10

Alternate Designations
 1999 JW91 = 2000 RX65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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