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JPL Small-Body Database Browser
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136992 (1998 SL45)
Classification: Main-belt Asteroid          SPK-ID: 2136992
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0575748205241944 4.0463e-07  
a 2.508230643984382 1.351e-08 au
q 2.363819714823696 1.0196e-06 au
i 5.743996714260958 5.2551e-06 deg
node 17.12478511204351 3.9663e-05 deg
peri 158.2087279954364 5.5565e-05 deg
M 259.4356132270408 5.9601e-05 deg
tp 2459005.813752672405
(2020-Jun-05.31375267)
0.00024113 TDB
period 1450.940592831224
3.97
1.1723e-05
3.21e-08
d
yr
n .2481149137178188 2.0047e-09 deg/d
Q 2.652641573145067 1.4288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      852  
   data-arc span      9140 days (25.02 yr)  
   first obs. used      1994-09-29  
   last obs. used      2019-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55971  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:05:53  

Additional Information
 Earth MOID = 1.36871 au 
 Jupiter MOID = 2.30774 au 
 T_jup = 3.454 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.5   n/a MPO251235  
diameter diameter 2.621 km 0.690 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 119. h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Masiero, J.; Jedicke, R.; Durecy, J.; Gwyn, S.; et al. (2009) Icarus 204, 145-171.]
geometric albedo albedo 0.162   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

136992 (1998 SL45)          Discovered 1998-Sep-25 by Spacewatch at Kitt Peak
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 SL45 = 1994 SJ12 = 2000 AC133 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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