Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1783717668578279 1.2083e-08  
a 2.664674087243736 9.8349e-09 au
q 2.189371462201801 3.2296e-08 au
i 13.11666979647167 9.4468e-07 deg
node 84.16560395111347 4.3203e-06 deg
peri 336.4851788037389 8.7039e-06 deg
M 121.9913960534253 5.6293e-06 deg
tp 2458858.117077784016
(2020-Jan-09.61707778)
2.4135e-05 TDB
period 1588.782965586138
4.35
8.7959e-06
2.408e-08
d
yr
n .2265885321014805 1.2545e-09 deg/d
Q 3.139976712285671 1.1589e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2169  
   data-arc span      24324 days (66.60 yr)  
   first obs. used      1954-11-23  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4586  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:49:58  

Additional Information
 Earth MOID = 1.20874 au 
 Jupiter MOID = 2.19137 au 
 T_jup = 3.324 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457330.5 (2015-Nov-04.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1758206841575139 1.1941e-08  
q 2.197075018182564 3.1773e-08 au
tp 2457266.180341078788
(2015-Aug-31.68034108)
2.4922e-05 TDB
node 84.31072323373928 4.3307e-06 deg
peri 336.0088245483037 8.8671e-06 deg
i 13.09920577922286 9.4243e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2169  
   data-arc span      24324 days (66.60 yr)  
   first obs. used      1954-11-23  
   last obs. used      2021-06-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4586  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 03:49:58  

Additional Information
 Jupiter MOID = 2.19137 au 
 T_jup = 3.324 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.425807682235773E-16 -3.670961125297985E-16 1.818032432454926E-13 -2.066420025542194E-14 7.144990360476719E-14 7.1856081827949E-16
q -3.670961125297985E-16 1.009517513688334E-15 -5.192027019862942E-13 5.728017700827373E-14 -2.02285915623271E-13 -1.7082391745616E-15
tp 1.818032432454926E-13 -5.192027019862942E-13 6.210866322662706E-10 -3.36084916693487E-11 2.011626271781256E-10 -9.233547184588308E-12
node -2.066420025542194E-14 5.728017700827373E-14 -3.36084916693487E-11 1.875515275947945E-11 -2.564263731776517E-11 -1.626851889118933E-12
peri 7.144990360476719E-14 -2.02285915623271E-13 2.011626271781256E-10 -2.564263731776517E-11 7.862461280873638E-11 -1.07269737981693E-12
i 7.1856081827949E-16 -1.7082391745616E-15 -9.233547184588308E-12 -1.626851889118933E-12 -1.07269737981693E-12 8.8817764756538E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.60   n/a MPO614063  
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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-24 09:14 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin