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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
15451 (1998 XK42)
Classification: Main-belt Asteroid          SPK-ID: 2015451
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05696150691011311 4.0417e-08  
a 3.010187138898868 1.8762e-08 au
q 2.838722343385746 1.2178e-07 au
i 11.21830725659049 4.5561e-06 deg
node 77.4481310673707 2.1395e-05 deg
peri 176.9156918599896 4.2992e-05 deg
M 240.1413962583105 3.8368e-05 deg
tp 2459635.619407997943
(2022-Feb-25.11940800)
0.00020454 TDB
period 1907.605960203026
5.22
1.7834e-05
4.883e-08
d
yr
n .1887182193337692 1.7643e-09 deg/d
Q 3.181651934411989 1.983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1807  
   data-arc span      12687 days (34.74 yr)  
   first obs. used      1985-05-11  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45663  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:18:40  

Additional Information
 Earth MOID = 1.82394 au 
 Jupiter MOID = 1.8583 au 
 T_jup = 3.218 
[ 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 12.5   n/a MPO337389  
diameter diameter 10.956 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.177   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15451 (1998 XK42)          Discovered 1998-Dec-14 by LINEAR at Socorro
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XK42 = 1985 JM1 = 2000 FP31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Apr-08 21:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin