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 ]  
49958 (1999 XC223)
Classification: Main-belt Asteroid          SPK-ID: 2049958
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158264082868438 3.6587e-08  
a 2.260098113427383 1.0388e-08 au
q 1.998319066573218 8.2805e-08 au
i 7.475529091249855 4.4682e-06 deg
node 55.44262839641385 3.2932e-05 deg
peri 241.7674826143484 3.9061e-05 deg
M 72.93796669120084 2.2563e-05 deg
tp 2458349.056439664842
(2018-Aug-18.55643966)
7.7273e-05 TDB
period 1241.050248958712
3.40
8.5566e-06
2.343e-08
d
yr
n .2900768927785588 2e-09 deg/d
Q 2.521877160281548 1.1592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1486  
   data-arc span      14971 days (40.99 yr)  
   first obs. used      1978-11-30  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50446  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 03:48:02  

Additional Information
 Earth MOID = .994473 au 
 Jupiter MOID = 2.64181 au 
 T_jup = 3.600 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2   n/a MPO359076  
diameter diameter 3.033 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.231   0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

49958 (1999 XC223)          Discovered 1999-Dec-15 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XC223 = 1978 WK18 = 1988 VU12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-25 08:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin