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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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1295308714896601 3.4857e-08  
a 2.285353844549669 8.9618e-09 au
q 1.989329969402905 8.0878e-08 au
i 6.612896329001364 4.2278e-06 deg
node 166.6648918310224 3.3003e-05 deg
peri 133.7522823954448 3.6978e-05 deg
M 267.8179814553565 1.7826e-05 deg
tp 2459323.626307640904
(2021-Apr-19.12630764)
6.3203e-05 TDB
period 1261.910647946914
3.45
7.4227e-06
2.032e-08
d
yr
n .2852816881969479 1.6781e-09 deg/d
Q 2.581377719696433 1.0123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      10804 days (29.58 yr)  
   first obs. used      1990-09-28  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:39:47  

Additional Information
 Earth MOID = .980827 au 
 Jupiter MOID = 2.62952 au 
 T_jup = 3.582 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456943.5 (2014-Oct-13.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1301552218542263 3.4912e-08  
q 1.988076425620949 8.1081e-08 au
tp 2456798.493772388130
(2014-May-20.99377239)
5.8559e-05 TDB
node 166.6881988042762 3.2999e-05 deg
peri 133.5466189635139 3.6923e-05 deg
i 6.612579623630059 4.2283e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1211  
   data-arc span      10804 days (29.58 yr)  
   first obs. used      1990-09-28  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51346  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:39:47  

Additional Information
 Jupiter MOID = 2.62952 au 
 T_jup = 3.582 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.218844183637885E-15 -2.817747367103923E-15 2.018347148789191E-14 5.593362463315557E-15 2.526716910296306E-14 -5.051870823811452E-16
q -2.817747367103923E-15 6.574068207845033E-15 3.069647273912636E-14 -1.291887724134528E-14 -3.659148847599667E-14 1.481435767930632E-15
tp 2.018347148789191E-14 3.069647273912636E-14 3.429146521015487E-9 -9.628033008371646E-12 9.823004054203854E-10 2.365204233414929E-12
node 5.593362463315557E-15 -1.291887724134528E-14 -9.628033008371646E-12 1.08894050783018E-9 -1.083642323436537E-9 1.367179956138549E-11
peri 2.526716910296306E-14 -3.659148847599667E-14 9.823004054203854E-10 -1.083642323436537E-9 1.363292496557261E-9 -1.288789347079566E-11
i -5.051870823811452E-16 1.481435767930632E-15 2.365204233414929E-12 1.367179956138549E-11 -1.288789347079566E-11 1.787846396464081E-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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