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 ]  
172686 (2003 YR155)
Classification: Main-belt Asteroid          SPK-ID: 2172686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2359433851597447 6.8788e-08  
a 2.583992534863582 1.9592e-08 au
q 1.974316588960358 1.8946e-07 au
i 10.30101527528837 5.8678e-06 deg
node 192.9803480311397 1.7556e-05 deg
peri 221.1160188280924 2.1269e-05 deg
M 20.84660031055473 1.3091e-05 deg
tp 2458912.644683450997
(2020-Mar-04.14468345)
5.4416e-05 TDB
period 1517.173711131577
4.15
1.7255e-05
4.724e-08
d
yr
n .2372833099853118 2.6986e-09 deg/d
Q 3.193668480766805 2.4214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      641  
   data-arc span      8653 days (23.69 yr)  
   first obs. used      1996-03-19  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45589  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:00:45  

Additional Information
 Earth MOID = .997023 au 
 Jupiter MOID = 2.23763 au 
 T_jup = 3.361 
[ 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 15.6   n/a MPO449896  

172686 (2003 YR155)          Discovered 2003-Dec-26 by NEAT at Haleakala
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-24 09:43 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin