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JPL Small-Body Database Browser
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17743 (1998 BA31)
Classification: Main-belt Asteroid          SPK-ID: 2017743
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1643390591836194 3.1663e-08  
a 2.329405138662321 8.4188e-09 au
q 1.946592889717066 7.4547e-08 au
i 5.078405960545066 4.8851e-06 deg
node 174.6926672891456 3.9679e-05 deg
peri 259.9046742752116 4.3647e-05 deg
M 133.6456577321854 1.5101e-05 deg
tp 2458518.420878855066
(2019-Feb-03.92087886)
5.4806e-05 TDB
period 1298.571809642724
3.56
7.0398e-06
1.927e-08
d
yr
n .2772276414186496 1.5029e-09 deg/d
Q 2.712217387607575 9.8023e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1235  
   data-arc span      15391 days (42.14 yr)  
   first obs. used      1977-03-12  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53483  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:23:18  

Additional Information
 Earth MOID = .969064 au 
 Jupiter MOID = 2.55951 au 
 T_jup = 3.549 
[ 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 15.2   n/a MPO467898  

17743 (1998 BA31)          Discovered 1998-Jan-26 by Spacewatch at Kitt Peak
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 BA31 = 1977 ET5 = 1993 TR16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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