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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04574309585195046 5.3418e-08  
a 2.30564052112267 1.3361e-08 au
q 2.200173385764815 1.2291e-07 au
i 5.967222269331224 5.2023e-06 deg
node 274.0811651611601 6.0166e-05 deg
peri 216.6512088933057 9.4517e-05 deg
M 353.8610321849205 7.3186e-05 deg
tp 2457422.306134016494
(2016-Feb-03.80613402)
0.00026003 JED
period 1278.750513507314
3.50
1.1115e-05
3.043e-08
d
yr
n .2815248136343687 2.4471e-09 deg/d
Q 2.411107656480525 1.3972e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1006  
   data-arc span      10197 days (27.92 yr)  
   first obs. used      1988-01-19  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46597  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:36:45  

Additional Information
 Earth MOID = 1.21845 au 
 Jupiter MOID = 2.62536 au 
 T_jup = 3.580 
[ 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. 2015-December); 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. (2015) 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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