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 ]  
137076 (1998 XK3)
Classification: Main-belt Asteroid          SPK-ID: 2137076
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .252313757363732 3.3106e-08  
a 2.611288023491685 1.3288e-08 au
q 1.952424130725585 8.4302e-08 au
i 18.26090956933722 6.9447e-06 deg
node 271.5869978752231 1.8006e-05 deg
peri 134.6261460049399 2.7077e-05 deg
M 120.0558206896906 1.8079e-05 deg
tp 2458686.502138252582
(2019-Jul-22.00213825)
7.6025e-05 TDB
period 1541.27662587342
4.22
1.1764e-05
3.221e-08
d
yr
n .2335726072508192 1.7828e-09 deg/d
Q 3.270151916257785 1.664e-08 au
  Orbit Determination Parameters
   # obs. used (total)      931  
   data-arc span      7796 days (21.34 yr)  
   first obs. used      1998-11-23  
   last obs. used      2020-03-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46665  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:20:15  

Additional Information
 Earth MOID = 1.00247 au 
 Jupiter MOID = 2.20882 au 
 T_jup = 3.295 
[ 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 14.67   n/a E2021B55  
diameter diameter 4.851 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 19.645 h n/a LCDB (Rev. 2020-October); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.119   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

137076 (1998 XK3)          Discovered 1998-Dec-10 by Sarounova, L. at Ondrejov
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-14 16:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin