Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
185643 (2040 P-L)
Classification: Mars-crossing Asteroid          SPK-ID: 2185643
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .244600965836164 1.6672e-07  
a 2.194012453417549 4.1076e-09 AU
q 1.657354888255045 3.664e-07 AU
i 4.81688005096515 1.5572e-05 deg
node .8729891706395119 6.8404e-05 deg
peri 343.2170045115477 7.1035e-05 deg
M 194.6861467843531 1.6142e-05 deg
tp 2457345.584468297397
(2015-Nov-19.08446830)
5.3332e-05 JED
period 1187.017329582695
3.25
3.3335e-06
9.127e-09
d
yr
n .3032811661869848 8.5171e-10 deg/d
Q 2.730670018580053 5.1124e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      19550 days (53.52 yr)  
   first obs. used      1960-09-24  
   last obs. used      2014-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59806  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 16:37:59  

Additional Information
 Earth MOID = .649399 AU 
 T_jup = 3.626 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.8 mag n/a MPO248332  

185643 (2040 P-L)          Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar (675)
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

[ show close-approach data ]
Alternate Designations
 2040 P-L = 2220 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-24 03:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin