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17708 (1997 WB)
Classification: Main-belt Asteroid          SPK-ID: 2017708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1295308696230473 3.6215e-08  
a 2.285353843863369 9.4688e-09 au
q 1.989329973071373 8.3264e-08 au
i 6.612896118254758 4.2348e-06 deg
node 166.6649006131104 3.6438e-05 deg
peri 133.7522747079045 4.0276e-05 deg
M 267.8179809129439 1.7961e-05 deg
tp 2459323.626309396673
(2021-Apr-19.12630940)
6.3595e-05 TDB
period 1261.910647378479
3.45
7.8426e-06
2.147e-08
d
yr
n .2852816883254546 1.773e-09 deg/d
Q 2.581377714655365 1.0695e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1108  
   data-arc span      10693 days (29.28 yr)  
   first obs. used      1990-09-28  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52102  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 00:33:22  

Additional Information
 Earth MOID = .980827 au 
 Jupiter MOID = 2.62952 au 
 T_jup = 3.582 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456740.5 (2014-Mar-24.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1301944048178768 3.6278e-08  
q 1.98811519713131 8.3484e-08 au
tp 2456798.586140711730
(2014-May-21.08614071)
5.9738e-05 TDB
node 166.6900234518331 3.6437e-05 deg
peri 133.5789607349659 4.0219e-05 deg
i 6.612179825806654 4.2352e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1108  
   data-arc span      10693 days (29.28 yr)  
   first obs. used      1990-09-28  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52102  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 00:33:22  

Additional Information
 Jupiter MOID = 2.62952 au 
 T_jup = 3.582 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.316100734398838E-15 -3.013921191136584E-15 -9.715504189905438E-14 8.998658418997908E-15 -2.072278188069316E-14 -6.059321919232142E-16
q -3.013921191136584E-15 6.969590731434212E-15 2.665702372834984E-13 -2.026962491898898E-14 5.64900369712021E-14 1.680196293273048E-15
tp -9.715504189905438E-14 2.665702372834984E-13 3.568664457562768E-9 -1.030460860357422E-11 1.033705854742E-9 2.350329541446422E-12
node 8.998658418997908E-15 -2.026962491898898E-14 -1.030460860357422E-11 1.327645605484753E-9 -1.320885809465475E-9 1.171519383363538E-11
peri -2.072278188069316E-14 5.64900369712021E-14 1.033705854742E-9 -1.320885809465475E-9 1.61753805680614E-9 -1.094549219839318E-11
i -6.059321919232142E-16 1.680196293273048E-15 2.350329541446422E-12 1.171519383363538E-11 -1.094549219839318E-11 1.793655523496581E-11

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 15.4   n/a MPO502304  
diameter diameter 1.675 km 0.350 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.330   0.180 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17708 (1997 WB)          Discovered 1997-Nov-18 by Zoltowski, F. B. at Woomera
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 WB = 1996 HF4 = 1999 CR68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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