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19135 Takashionaka (1988 XQ)
Classification: Main-belt Asteroid          SPK-ID: 2019135
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2697218709584961 7.2186e-08  
a 2.533199994471025 7.5634e-09 au
q 1.849940552450248 1.8605e-07 au
i 9.69018122375738 4.2183e-06 deg
node 256.9221322998723 3.6511e-05 deg
peri 166.2841555176707 4.0085e-05 deg
M 343.9304411558341 1.5253e-05 deg
tp 2459266.236124728522
(2021-Feb-20.73612473)
6.2544e-05 TDB
period 1472.660521160454
4.03
6.5954e-06
1.806e-08
d
yr
n .2444555244248149 1.0948e-09 deg/d
Q 3.216459436491802 9.6035e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1715  
   data-arc span      11795 days (32.29 yr)  
   first obs. used      1988-12-03  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43668  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:51:21  

Additional Information
 Earth MOID = .864435 au 
 Jupiter MOID = 2.1238 au 
 T_jup = 3.379 
[ 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 14.38   n/a E2021B10  
diameter diameter 5.041 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.277   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19135 Takashionaka           Discovered 1988 Dec. 3 by K. Endate and K. Watanabe at Kitami.
Takashi Onaka (b. 1952) is a professor of infrared astronomy at the University of Tokyo. He is known for his comprehensive study of the interplanetary, circumstellar and interstellar dust based on ground-based/space-borne observations, theoretical approaches and laboratory experiments.
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 2018-09-25Last Updated: 2018-10-01

Alternate Designations
 1988 XQ = 1992 WY2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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