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17716 (1997 WW43)
Classification: Main-belt Asteroid          SPK-ID: 2017716
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07752826628855486 3.9599e-08  
a 2.237097449656274 7.3914e-09 au
q 2.063659162865875 8.8225e-08 au
i 3.111485716860648 3.7785e-06 deg
node 307.6914666373766 7.3532e-05 deg
peri 59.39029037635421 7.825e-05 deg
M 320.7000797843763 2.8736e-05 deg
tp 2459133.918160599801
(2020-Oct-11.41816060)
9.7832e-05 TDB
period 1222.153570602764
3.35
6.057e-06
1.658e-08
d
yr
n .2945619999477223 1.4598e-09 deg/d
Q 2.410535736446672 7.9644e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1407  
   data-arc span      10494 days (28.73 yr)  
   first obs. used      1990-10-10  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56733  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:10:31  

Additional Information
 Earth MOID = 1.06367 au 
 Jupiter MOID = 2.89867 au 
 T_jup = 3.631 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO267774  
diameter diameter 2.112 km 0.313 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.434   0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17716 (1997 WW43)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WW43 = 1990 TW9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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