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JPL Small-Body Database Browser
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13707 (1998 QS9)
Classification: Main-belt Asteroid          SPK-ID: 2013707
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .16418919629065 4.7813e-08  
a 2.654533879339292 1.7038e-08 au
q 2.218688095164272 1.2544e-07 au
i 12.00080179695 6.0072e-06 deg
node 324.6339385603683 2.2954e-05 deg
peri 47.51717041223848 2.932e-05 deg
M 332.8832372208009 2.0211e-05 deg
tp 2459119.491565078311
(2020-Sep-26.99156508)
8.9273e-05 TDB
period 1579.722615748651
4.33
1.5209e-05
4.164e-08
d
yr
n .2278881092231444 2.194e-09 deg/d
Q 3.090379663514312 1.9835e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1240  
   data-arc span      18622 days (50.98 yr)  
   first obs. used      1968-08-27  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50192  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 20:43:35  

Additional Information
 Earth MOID = 1.2356 au 
 Jupiter MOID = 2.4329 au 
 T_jup = 3.339 
[ 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 13.2   n/a MPO395136  
diameter diameter 5.529 km 0.360 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.27 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:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.263   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13707 (1998 QS9)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20000222/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QS9 = 1968 QU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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