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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1892599059074326 5.6765e-08  
a 2.435490132937106 1.5491e-08 AU
q 1.974549499538949 1.3364e-07 AU
i 7.266701058716924 8.4694e-06 deg
node 187.6083976798499 3.9887e-05 deg
peri 100.7752582105836 4.6851e-05 deg
M 76.96619515371063 2.3678e-05 deg
tp 2456703.692066390403
(2014-Feb-15.19206639)
9.0421e-05 JED
period 1388.282945338029
3.80
1.3245e-05
3.626e-08
d
yr
n .2593131329668136 2.474e-09 deg/d
Q 2.896430766335263 1.8422e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      854  
   data-arc span      22941 days (62.81 yr)  
   first obs. used      1952-02-01  
   last obs. used      2014-11-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53604  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:26:51  

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 2015-Jan-29 16:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin