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JPL Small-Body Database Browser
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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 | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2697075604234895 8.7139e-08  
a 2.533622144387482 1.0371e-08 au
q 1.850285096789804 2.2399e-07 au
i 9.690197754537378 6.6125e-06 deg
node 256.9258026053827 4.6489e-05 deg
peri 166.2359248545066 5.0156e-05 deg
M 295.0770548479878 1.9379e-05 deg
tp 2459266.148218799147
8.0227e-05 TDB
period 1473.028657954049
n .244394430519783 1.5005e-09 deg/d
Q 3.21695919198516 1.3168e-08 au
  Orbit Determination Parameters
   # obs. used (total)      957  
   data-arc span      10748 days (29.43 yr)  
   first obs. used      1988-12-03  
   last obs. used      2018-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50356  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:52:52  

Additional Information
 Earth MOID = .86538 au 
 Jupiter MOID = 2.12278 au 
 T_jup = 3.378 
[ 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 14.2   n/a MPO431719  
diameter diameter 5.041 km 0.325 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
geometric albedo albedo 0.277   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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

[ hide close-approach data ]
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
2195-Jan-09 00:15 00:12 Iris 0.0433363597532073 0.0433171875052022 0.0433555335239424 2.11533101766921 2.11533095495842 2522775.510516100 12.4059951993532 1035.9044462777 60.2138029746099 22.9969965703457 42373.1561794966 T 20 CATAB v2.0e-lin.ifort 2018-Oct-03 17:52:56 2018-Dec-17 16:00

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