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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1640946456422329 3.1121e-08  
a 2.329834553957374 7.5117e-09 au
q 1.947521178420709 7.2696e-08 au
i 5.078180426071802 4.5496e-06 deg
node 174.683345989043 3.75e-05 deg
peri 259.8955824443331 4.0165e-05 deg
M 189.1159717272657 1.3244e-05 deg
tp 2459817.073737458210
(2022-Aug-25.57373746)
4.8388e-05 TDB
period 1298.930904945035
3.56
6.2819e-06
1.72e-08
d
yr
n .2771510005878517 1.3404e-09 deg/d
Q 2.712147929494039 8.7443e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1361  
   data-arc span      15805 days (43.27 yr)  
   first obs. used      1977-03-12  
   last obs. used      2020-06-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52714  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:11:31  

Additional Information
 Earth MOID = .969506 au 
 Jupiter MOID = 2.55969 au 
 T_jup = 3.548 
[ 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 15.21   n/a E2021B10  

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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