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15445 (1998 XE)
Classification: Main-belt Asteroid          SPK-ID: 2015445
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 .1781691655055364 3.9869e-08  
a 2.665191047706744 1.1545e-08 au
q 2.190336182824007 1.0954e-07 au
i 13.1171793227137 4.2276e-06 deg
node 84.17473691342211 1.7813e-05 deg
peri 336.5563190812093 2.1712e-05 deg
M 32.21930858609326 1.0563e-05 deg
tp 2458858.265594714695
(2020-Jan-09.76559471)
4.6717e-05 TDB
period 1589.245336096718
4.35
1.0326e-05
2.827e-08
d
yr
n .2265226090794651 1.4718e-09 deg/d
Q 3.14004591258948 1.3602e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1718  
   data-arc span      24084 days (65.94 yr)  
   first obs. used      1954-11-23  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:37  

Additional Information
 Earth MOID = 1.20997 au 
 Jupiter MOID = 2.18945 au 
 T_jup = 3.324 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456946.5 (2014-Oct-16.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .175996470871665 3.9616e-08  
q 2.197139212740544 1.0856e-07 au
tp 2457266.009761539686
(2015-Aug-31.50976154)
5.03e-05 TDB
node 84.31665508256317 1.7851e-05 deg
peri 335.9518529901164 2.1908e-05 deg
i 13.0989544011713 4.2211e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1718  
   data-arc span      24084 days (65.94 yr)  
   first obs. used      1954-11-23  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48155  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:33:37  

Additional Information
 Jupiter MOID = 2.18945 au 
 T_jup = 3.324 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.569423812039044E-15 -4.285866613096292E-15 -7.165106703798875E-14 -6.596177357017208E-15 -1.152891334151321E-14 -2.796679419517051E-15
q -4.285866613096292E-15 1.178620068304769E-14 4.566820213413594E-14 1.872185175800419E-14 -9.364663854274861E-15 7.86313061512735E-15
tp -7.165106703798875E-14 4.566820213413594E-14 2.530049332928382E-9 -8.888759900841918E-13 6.559171719241392E-10 1.555048927234942E-12
node -6.596177357017208E-15 1.872185175800419E-14 -8.888759900841918E-13 3.186666654662174E-10 -3.101343006958442E-10 -1.440645999993894E-11
peri -1.152891334151321E-14 -9.364663854274861E-15 6.559171719241392E-10 -3.101343006958442E-10 4.799575875472588E-10 1.436559672321334E-11
i -2.796679419517051E-15 7.86313061512735E-15 1.555048927234942E-12 -1.440645999993894E-11 1.436559672321334E-11 1.781769580717605E-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 13.5   n/a MPO263485  
diameter diameter 12.170 km 0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15445 (1998 XE)          Discovered 1998-Dec-01 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 XE = 1958 TS = 1980 WZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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