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JPL Small-Body Database Browser
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13340 (1998 SM123)
Classification: Main-belt Asteroid          SPK-ID: 2013340
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2402126023038997 4.6253e-08  
a 2.557361439551178 1.0469e-08 au
q 1.943050993124942 1.2145e-07 au
i 5.567930901633525 3.8553e-06 deg
node 21.69956950872996 5.1849e-05 deg
peri 253.669889912632 5.2964e-05 deg
M 83.99275905005631 1.0136e-05 deg
tp 2458251.981414811072
(2018-May-13.48141481)
4.266e-05 TDB
period 1493.779845870297
4.09
9.1723e-06
2.511e-08
d
yr
n .2409993688127845 1.4798e-09 deg/d
Q 3.171671885977414 1.2983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2034  
   data-arc span      9358 days (25.62 yr)  
   first obs. used      1993-04-26  
   last obs. used      2018-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44058  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:21:44  

Additional Information
 Earth MOID = .935394 au 
 Jupiter MOID = 1.99275 au 
 T_jup = 3.389 
[ 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 MPO358759  
diameter diameter 8.914 km 0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.046   0.002 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13340 (1998 SM123)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SM123 = 1993 HF6 = 1997 EG58 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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