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14187 (1998 XS9)
Classification: Main-belt Asteroid          SPK-ID: 2014187
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1565910724139677 1.3877e-08  
a 2.264246583288698 5.5731e-09 au
q 1.909685782601858 3.0955e-08 au
i 2.503708212722746 8.092e-07 deg
node 190.4450965894975 1.7391e-05 deg
peri 123.4079885335616 1.8033e-05 deg
M 265.6356869167205 6.7717e-06 deg
tp 2459526.704006296724
(2021-Nov-08.20400630)
2.3956e-05 TDB
period 1244.468787296549
3.41
4.5946e-06
1.258e-08
d
yr
n .2892800556147772 1.068e-09 deg/d
Q 2.618807383975537 6.4458e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2177  
   data-arc span      10734 days (29.39 yr)  
   first obs. used      1991-10-17  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48882  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:19:09  

Additional Information
 Earth MOID = .895233 au 
 Jupiter MOID = 2.64278 au 
 T_jup = 3.600 
[ 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 14.34   n/a E2021B10  
diameter diameter 4.108 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.316   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14187 (1998 XS9)          Discovered 1998-Dec-14 by Korlevic, K. at Visnjan
Reference: 20000320/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XS9 = 1991 VQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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