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

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04584040607437625 4.0035e-08  
a 2.305725570308772 8.8946e-09 au
q 2.200030173869745 9.436e-08 au
i 5.967701158874337 3.6536e-06 deg
node 274.0175030215556 3.9703e-05 deg
peri 215.7723484266015 6.0781e-05 deg
M 332.5940870535424 4.4705e-05 deg
tp 2458697.853512138949
(2019-Aug-02.35351214)
0.00015879 TDB
period 1278.821268917148
3.50
7.3998e-06
2.026e-08
d
yr
n .2815092372563 1.6289e-09 deg/d
Q 2.411420966747799 9.3023e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1426  
   data-arc span      11881 days (32.53 yr)  
   first obs. used      1986-10-02  
   last obs. used      2019-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48288  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:19:21  

Additional Information
 Earth MOID = 1.21863 au 
 Jupiter MOID = 2.62328 au 
 T_jup = 3.579 
[ 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 14.6   n/a MPO358799  
diameter diameter 2.509 km 0.493 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.849 h n/a LCDB (Rev. 2019-January); 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.]
geometric albedo albedo 0.535   0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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