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17409 (1988 BA4)
Classification: Main-belt Asteroid          SPK-ID: 2017409
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04603577702539167 5.3044e-08  
a 2.306158651787237 1.1122e-08 au
q 2.199992846308382 1.2268e-07 au
i 5.965905450246791 4.8589e-06 deg
node 274.0533093289254 5.1876e-05 deg
peri 216.5539782112445 7.7441e-05 deg
M 50.25837168275789 5.5392e-05 deg
tp 2457421.917823493379
(2016-Feb-03.41782349)
0.00019688 JED
period 1279.181584874927
3.50
9.2538e-06
2.534e-08
d
yr
n .2814299425950533 2.0359e-09 deg/d
Q 2.412324457266092 1.1634e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1135  
   data-arc span      10301 days (28.20 yr)  
   first obs. used      1988-01-19  
   last obs. used      2016-04-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46463  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:27:30  

Additional Information
 Earth MOID = 1.21687 au 
 Jupiter MOID = 2.6243 au 
 T_jup = 3.579 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO358799  
rotation period rot_per 3.8489 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

17409 (1988 BA4)          Discovered 1988-Jan-19 by Debehogne, H. at La Silla
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1988 BA4 = 1986 TN8 = 2000 QF89 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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