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 ]  
172090 Davidmccomas (2002 CL257)
Classification: Outer Main-belt Asteroid          SPK-ID: 2172090
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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1081069574631114 1.0317e-07  
a 3.216455754610479 4.4227e-08 au
q 2.868734509164824 3.4644e-07 au
i 1.796347170673733 7.9818e-06 deg
node 148.3305976445799 0.00021199 deg
peri 67.99524030360955 0.00021472 deg
M 348.2565268263492 3.933e-05 deg
tp 2459069.231980563099
(2020-Aug-07.73198056)
0.00023087 TDB
period 2107.001279505081
5.77
4.3458e-05
1.19e-07
d
yr
n .1708589375344667 3.524e-09 deg/d
Q 3.564177000056135 4.9009e-08 au
  Orbit Determination Parameters
   # obs. used (total)      208  
   data-arc span      6544 days (17.92 yr)  
   first obs. used      2002-02-06  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59029  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 21:45:02  

Additional Information
 Earth MOID = 1.86236 au 
 Jupiter MOID = 1.40318 au 
 T_jup = 3.180 
[ 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 MPO427050  

172090 Davidmccomas           Discovered 2002 Feb. 6 by M. W. Buie at Kitt Peak.
David J. McComas (b. 1958), a Professor of Astrophysical Sciences at Princeton University, served as a Co-Investigator on the Particles and Plasma Science Team for the New Horizons Mission to Pluto.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-05-29Last Updated: 2018-09-17

[ show close-approach data ]
Alternate Designations
 2002 CL257 = 2006 WS111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-23 10:20 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin