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15280 (1991 PW11)
Classification: Main-belt Asteroid          SPK-ID: 2015280
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1892665252131598 6.8781e-08  
a 2.43542805453811 1.5204e-08 AU
q 1.974483049249036 1.6809e-07 AU
i 7.266613750214472 8.9502e-06 deg
node 187.617181917595 5.6713e-05 deg
peri 100.8795466113875 6.2068e-05 deg
M 281.3007607140548 2.3803e-05 deg
tp 2456703.979540153362
(2014-Feb-15.47954015)		 9.2528e-05 JED
period 1388.229866596966
3.80		 1.3e-05
3.559e-08		 d
yr
n .2593230477618849 2.4284e-09 deg/d
Q 2.896373059827184 1.8081e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      727  
   data-arc span      22352 days (61.20 yr)  
   first obs. used      1952-02-01  
   last obs. used      2013-04-13  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .57476  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 13:58:47  

Additional Information
 Earth MOID = .974257 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 13.9 mag n/a PDS3 (MPO 846)  

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 ]
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