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17715 (1997 WZ39)
Classification: Main-belt Asteroid          SPK-ID: 2017715
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1483686278944338 2.9453e-08  
a 2.380022503077112 7.1478e-09 au
q 2.026901829937685 7.1155e-08 au
i 4.180717258401613 4.159e-06 deg
node 213.0259275730077 4.0333e-05 deg
peri 226.4555056199022 4.29e-05 deg
M 89.69333917690736 1.3048e-05 deg
tp 2458866.360580577643
(2020-Jan-17.86058058)
4.8663e-05 TDB
period 1341.127357905509
3.67
6.0417e-06
1.654e-08
d
yr
n .2684308823303896 1.2093e-09 deg/d
Q 2.733143176216539 8.2084e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1657  
   data-arc span      14017 days (38.38 yr)  
   first obs. used      1982-11-05  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53586  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:35:35  

Additional Information
 Earth MOID = 1.04459 au 
 Jupiter MOID = 2.50661 au 
 T_jup = 3.520 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457026.5 (2015-Jan-04.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1471023480766012 2.9357e-08  
q 2.030564085345115 7.0836e-08 au
tp 2457523.951359969732
(2016-May-15.45135997)
5.0169e-05 TDB
node 213.0587666927324 4.0355e-05 deg
peri 226.2588147976464 4.2982e-05 deg
i 4.177661030523736 4.1588e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1657  
   data-arc span      14017 days (38.38 yr)  
   first obs. used      1982-11-05  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53586  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:35:35  

Additional Information
 Jupiter MOID = 2.50661 au 
 T_jup = 3.520 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.618549269784762E-16 -2.072019929139997E-15 -4.059921955726302E-13 6.920798354520692E-15 -1.138447663416398E-13 -9.012291514556898E-16
q -2.072019929139997E-15 5.017671274525098E-15 9.130203963558468E-13 -1.715440796455703E-14 2.523159213793258E-13 2.331462321681673E-15
tp -4.059921955726302E-13 9.130203963558468E-13 2.516910376803187E-9 -7.83160430051599E-12 7.476125487212307E-10 -2.74407225531249E-14
node 6.920798354520692E-15 -1.715440796455703E-14 -7.83160430051599E-12 1.628524442522604E-9 -1.625981441878305E-9 -1.772850833232664E-11
peri -1.138447663416398E-13 2.523159213793258E-13 7.476125487212307E-10 -1.625981441878305E-9 1.847474517949938E-9 1.76417818265912E-11
i -9.012291514556898E-16 2.331462321681673E-15 -2.74407225531249E-14 -1.772850833232664E-11 1.76417818265912E-11 1.72956323897181E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.52   n/a E2021B10  
rotation period rot_per 6.161 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Molnar, L.; Pal, A.; Sarneczky, K.; Szabo, R.; et al. (2018) Ap. J. Supp. Ser. 234, A37.]

17715 (1997 WZ39)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WZ39 = 1999 JR26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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