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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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1641891668103097 5.0177e-08  
a 2.654533884487941 1.7465e-08 au
q 2.218688177724131 1.3084e-07 au
i 12.00079805827882 6.1872e-06 deg
node 324.6339247348857 2.297e-05 deg
peri 47.51717921021374 2.9532e-05 deg
M 332.8832366212275 2.0229e-05 deg
tp 2459119.491568055499
(2020-Sep-26.99156806)
8.934e-05 TDB
period 1579.722620344621
4.33
1.559e-05
4.268e-08
d
yr
n .2278881085601376 2.249e-09 deg/d
Q 3.090379591251752 2.0332e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      18494 days (50.63 yr)  
   first obs. used      1968-08-27  
   last obs. used      2019-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5036  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:23:33  

Additional Information
 Earth MOID = 1.2356 au 
 Jupiter MOID = 2.4329 au 
 T_jup = 3.339 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456145.5 (2012-Aug-06.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1666344474794231 5.008e-08  
q 2.21279138166972 1.3112e-07 au
tp 2455963.134615699295
(2012-Feb-05.63461570)
7.7411e-05 TDB
node 324.8219764415672 2.3018e-05 deg
peri 47.93626816941725 2.9345e-05 deg
i 11.9897635704847 6.1811e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1190  
   data-arc span      18494 days (50.63 yr)  
   first obs. used      1968-08-27  
   last obs. used      2019-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5036  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:23:33  

Additional Information
 Jupiter MOID = 2.4329 au 
 T_jup = 3.339 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.507982756200672E-15 -6.529214718430343E-15 -5.54525149934495E-13 2.651840736832983E-16 -2.275327843213212E-13 -6.082465208733273E-16
q -6.529214718430343E-15 1.719273542993615E-14 1.6377572718121E-12 -1.098456844436022E-15 6.380826671979234E-13 1.069364522145674E-15
tp -5.54525149934495E-13 1.6377572718121E-12 5.992488609969635E-9 -1.855284979993652E-11 1.421726117203425E-9 -1.302283847280286E-11
node 2.651840736832983E-16 -1.098456844436022E-15 -1.855284979993652E-11 5.298346831405232E-10 -5.216542651694199E-10 -1.40908363219634E-11
peri -2.275327843213212E-13 6.380826671979234E-13 1.421726117203425E-9 -5.216542651694199E-10 8.61152717939874E-10 1.08854598220859E-11
i -6.082465208733273E-16 1.069364522145674E-15 -1.302283847280286E-11 -1.40908363219634E-11 1.08854598220859E-11 3.820540467536962E-11

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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