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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07735757481449984 3.7068e-08  
a 2.236629947651552 5.5191e-09 au
q 2.063609679143746 8.4007e-08 au
i 3.111556995136769 2.9808e-06 deg
node 307.6918002121648 6.2524e-05 deg
peri 59.49389675719941 6.5476e-05 deg
M 19.52873259913702 1.7915e-05 deg
tp 2459134.223252363473
(2020-Oct-11.72325236)
6.085e-05 TDB
period 1221.770487563752
3.35
4.5223e-06
1.238e-08
d
yr
n .294654359116049 1.0906e-09 deg/d
Q 2.409650216159358 5.9461e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1829  
   data-arc span      11045 days (30.24 yr)  
   first obs. used      1990-10-10  
   last obs. used      2021-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51452  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:34:56  

Additional Information
 Earth MOID = 1.06206 au 
 Jupiter MOID = 2.89768 au 
 T_jup = 3.632 
[ 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 15.18   n/a E2021B10  
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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