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 ]  
49659 (1999 JC118)
Classification: Main-belt Asteroid          SPK-ID: 2049659
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1969771713188588 5.9743e-08  
a 3.155780351602847 2.6655e-08 au
q 2.534163664640485 1.955e-07 au
i 16.96692600256914 6.5237e-06 deg
node 52.1280495545779 2.0246e-05 deg
peri 108.32131701 2.5815e-05 deg
M 328.2693087945869 1.6748e-05 deg
tp 2459180.982712964431
(2020-Nov-27.48271296)
9.6433e-05 TDB
period 2047.663451343631
5.61
2.5943e-05
7.103e-08
d
yr
n .1758101409505435 2.2274e-09 deg/d
Q 3.77739703856521 3.1905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      870  
   data-arc span      8342 days (22.84 yr)  
   first obs. used      1997-12-29  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51076  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:31:31  

Additional Information
 Earth MOID = 1.60043 au 
 Jupiter MOID = 1.48575 au 
 T_jup = 3.109 
[ 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 13.7   n/a MPO324755  
diameter diameter 5.946 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.151   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49659 (1999 JC118)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ 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 2020-Nov-30 06:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin