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JPL Small-Body Database Browser
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91139 (1998 KL47)
Classification: Main-belt Asteroid          SPK-ID: 2091139
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09939295943825832 4.4158e-08  
a 2.571519147888713 1.3489e-08 au
q 2.315928249527906 1.144e-07 au
i 13.76103883337315 4.6334e-06 deg
node 95.50999056340757 2.0853e-05 deg
peri 66.66403537324119 3.1367e-05 deg
M 196.6513958392739 2.432e-05 deg
tp 2459683.933082442622
(2022-Apr-14.43308244)
0.00010324 TDB
period 1506.201482060159
4.12
1.1851e-05
3.245e-08
d
yr
n .2390118482074507 1.8806e-09 deg/d
Q 2.82711004624952 1.483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1172  
   data-arc span      7801 days (21.36 yr)  
   first obs. used      1998-05-22  
   last obs. used      2019-09-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49829  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:24:06  

Additional Information
 Earth MOID = 1.36409 au 
 Jupiter MOID = 2.28639 au 
 T_jup = 3.382 
[ 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 14.3   n/a MPO439641  
diameter diameter 3.889 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.834 h n/a LCDB (Rev. 2019-August); 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.]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.304   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91139 (1998 KL47)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 KL47 = 2000 WN60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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