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 ]  
129702 (1998 SH118)
Classification: Main-belt Asteroid          SPK-ID: 2129702
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .273642773834778 4.9841e-08  
a 2.668701318764775 1.6902e-08 au
q 1.938430487361452 1.4004e-07 au
i 13.17612765201748 6.9149e-06 deg
node 198.3169299564393 2.1577e-05 deg
peri 102.4490728580083 2.6639e-05 deg
M 33.6765964536656 1.7291e-05 deg
tp 2458851.538487178405
(2020-Jan-03.03848718)
7.557e-05 TDB
period 1592.386115668089
4.36
1.5128e-05
4.142e-08
d
yr
n .2260758219742208 2.1477e-09 deg/d
Q 3.398972150168099 2.1527e-08 au
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      8176 days (22.38 yr)  
   first obs. used      1997-04-03  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58185  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 03:24:20  

Additional Information
 Earth MOID = .974513 au 
 Jupiter MOID = 2.08402 au 
 T_jup = 3.291 
[ 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 15.6   n/a MPO493742  
diameter diameter 4.183 km 0.140 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129702 (1998 SH118)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 1998 SH118 = 2002 LX37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-27 12:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin