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 ]  
15280 (1991 PW11)
Classification: Main-belt Asteroid          SPK-ID: 2015280
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1893129151284443 6.4352e-08  
a 2.435868990916458 1.7901e-08 AU
q 1.974727531375082 1.5633e-07 AU
i 7.26612315287913 8.6111e-06 deg
node 187.6091807738133 5.3156e-05 deg
peri 100.8141734882975 5.8561e-05 deg
M 25.07122701592384 2.3684e-05 deg
tp 2456703.794225901288
(2014-Feb-15.29422590)
9.1017e-05 JED
period 1388.60689400739
3.80
1.5307e-05
4.191e-08
d
yr
n .2592526377001295 2.8578e-09 deg/d
Q 2.897010450457835 2.129e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      22791 days (62.40 yr)  
   first obs. used      1952-02-01  
   last obs. used      2014-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54491  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:34:13  

Additional Information
 Earth MOID = .973803 AU 
 T_jup = 3.469 
[ 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 14.3 mag n/a MPO266038  

15280 (1991 PW11)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar (675)
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PW11 = 1998 HJ71 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-31 23:39 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin