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
JPL Small-Body Database Browser
Search: [ help ]  
78281 (2002 PL39)
Classification: Main-belt Asteroid          SPK-ID: 2078281
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1749757927038389 3.7075e-08  
a 3.129918016502132 2.4636e-08 au
q 2.582258130466644 1.1814e-07 au
i 1.470258549325656 4.322e-06 deg
node 156.5552849717196 0.00019999 deg
peri 183.4327939523217 0.00020048 deg
M 60.0344514603089 1.4362e-05 deg
tp 2458663.215863162071
(2019-Jun-28.71586316)
7.9999e-05 TDB
period 2022.54349474537
5.54
2.3879e-05
6.538e-08
d
yr
n .1779936999798971 2.1015e-09 deg/d
Q 3.677577902537619 2.8946e-08 au
  Orbit Determination Parameters
   # obs. used (total)      418  
   data-arc span      8397 days (22.99 yr)  
   first obs. used      1997-10-26  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57026  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:27:27  

Additional Information
 Earth MOID = 1.57364 au 
 Jupiter MOID = 1.72203 au 
 T_jup = 3.189 
[ 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 15.9   n/a MPO449493  

78281 (2002 PL39)          Discovered 2002-Aug-07 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 PL39 = 2001 HU39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-06 02:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin