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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882832058229674 2.708e-08  
a 2.436199070613271 9.699e-09 au
q 1.977503699575271 6.6538e-08 au
i 7.267855611758194 4.3845e-06 deg
node 187.5735777980112 2.4853e-05 deg
peri 100.8233094855689 2.832e-05 deg
M 235.3296038669102 1.5202e-05 deg
tp 2459481.481558563278
(2021-Sep-23.98155856)
6.0219e-05 TDB
period 1388.889154550636
3.80
8.2942e-06
2.271e-08
d
yr
n .2591999504211516 1.5479e-09 deg/d
Q 2.894894441651271 1.1525e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1728  
   data-arc span      24917 days (68.22 yr)  
   first obs. used      1952-02-01  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50242  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:09:37  

Additional Information
 Earth MOID = .977195 au 
 Jupiter MOID = 2.31753 au 
 T_jup = 3.469 
[ 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 14.4   n/a MPO502286  
diameter diameter 3.567 km 0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.273   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

[ show close-approach data ]
Alternate Designations
 1991 PW11 = 1998 HJ71 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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