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 ]  
187848 (1999 XC246)
Classification: Main-belt Asteroid          SPK-ID: 2187848
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2115476548764637 6.1156e-08  
a 2.274914820145717 1.2143e-08 au
q 1.793661924900178 1.3366e-07 au
i 9.507835190717481 5.6638e-06 deg
node 208.2377556562332 2.5996e-05 deg
peri 170.8226884905302 2.8208e-05 deg
M 87.02235169617461 1.2081e-05 deg
tp 2458897.547562176864
(2020-Feb-18.04756218)
4.0675e-05 TDB
period 1253.27430815827
3.43
1.0034e-05
2.747e-08
d
yr
n .287247570349569 2.2998e-09 deg/d
Q 2.756167715391255 1.4711e-08 au
  Orbit Determination Parameters
   # obs. used (total)      441  
   data-arc span      7768 days (21.27 yr)  
   first obs. used      1999-12-05  
   last obs. used      2021-03-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50812  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:57:04  

Additional Information
 Earth MOID = .795723 au 
 Jupiter MOID = 2.70784 au 
 T_jup = 3.562 
[ 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 16.5   n/a MPO449936  
diameter diameter 2.245 km 0.618 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.080   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

187848 (1999 XC246)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

[ show close-approach data ]
Alternate Designations
 1999 XC246 = 2005 LA15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-15 16:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin