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 ]  
117871 (2186 P-L)
Classification: Main-belt Asteroid          SPK-ID: 2117871
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1272739788407934 5.6536e-08  
a 2.557296037927455 2.0145e-08 au
q 2.231818796106631 1.433e-07 au
i 12.95861802447743 8.6809e-06 deg
node 358.5662218044223 1.7731e-05 deg
peri 243.959759090913 3.7114e-05 deg
M 233.8881514072087 3.0257e-05 deg
tp 2459123.766975732386
(2020-Oct-01.26697573)
0.00012526 TDB
period 1493.722543643902
4.09
1.7651e-05
4.833e-08
d
yr
n .2410086140373756 2.8479e-09 deg/d
Q 2.882773279748279 2.2709e-08 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      21345 days (58.44 yr)  
   first obs. used      1960-09-24  
   last obs. used      2019-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57085  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:12:00  

Additional Information
 Earth MOID = 1.25506 au 
 Jupiter MOID = 2.20804 au 
 T_jup = 3.390 
[ 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 15.5   n/a MPO280570  

117871 (2186 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2186 P-L = 2001 TP90 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-06 21:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin