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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1892598744569501 6.0983e-08  
a 2.435490141870678 1.6811e-08 AU
q 1.974549583379094 1.4631e-07 AU
i 7.266700220506864 8.5921e-06 deg
node 187.6084073520072 4.9561e-05 deg
peri 100.7752446097142 5.545e-05 deg
M 76.96619333874449 2.3752e-05 deg
tp 2456703.692071756459
(2014-Feb-15.19207176)
9.0626e-05 JED
period 1388.282952976528
3.80
1.4374e-05
3.935e-08
d
yr
n .2593131315400417 2.6849e-09 deg/d
Q 2.896430700362262 1.9993e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      770  
   data-arc span      22856 days (62.58 yr)  
   first obs. used      1952-02-01  
   last obs. used      2014-08-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5456  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:04:45  

Additional Information
 Earth MOID = .975501 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-Sep-22 22:18 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin