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213036 (1997 WD45)
Classification: Main-belt Asteroid          SPK-ID: 2213036
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .314328013126136 5.9207e-08  
a 2.735061916672727 1.3804e-08 au
q 1.875355338628027 1.6021e-07 au
i 6.142718390147033 6.2515e-06 deg
node 229.0149812242721 3.3196e-05 deg
peri 143.5469773344777 3.4659e-05 deg
M 64.87880316482671 9.151e-06 deg
tp 2458902.751556790808
(2020-Feb-23.25155679)
4.0801e-05 TDB
period 1652.148842557881
4.52
1.2508e-05
3.425e-08
d
yr
n .217898043279589 1.6497e-09 deg/d
Q 3.594768494717426 1.8143e-08 au
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      8478 days (23.21 yr)  
   first obs. used      1997-11-26  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53787  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:05  

Additional Information
 Earth MOID = .879032 au 
 Jupiter MOID = 1.90592 au 
 T_jup = 3.271 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457227.5 (2015-Jul-24.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3186045988516212 5.9959e-08  
q 1.860871813940897 1.6298e-07 au
tp 2457249.135120696839
(2015-Aug-14.63512070)
3.453e-05 TDB
node 229.1337549553524 3.3287e-05 deg
peri 143.0355169585089 3.4646e-05 deg
i 6.136574953890364 6.2509e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      629  
   data-arc span      8478 days (23.21 yr)  
   first obs. used      1997-11-26  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53787  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:05  

Additional Information
 Jupiter MOID = 1.90592 au 
 T_jup = 3.271 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.595027621642665E-15 -9.756939806930736E-15 1.071796667796374E-12 -2.844845677121403E-14 1.276836775230166E-13 -1.183553792528694E-14
q -9.756939806930736E-15 2.656316074945983E-14 -2.86331943194812E-12 7.785306199166349E-14 -3.372048763465081E-13 3.221993498295034E-14
tp 1.071796667796374E-12 -2.86331943194812E-12 1.192321713516596E-9 -1.169656125456354E-11 3.219057688310206E-10 -6.692019524093136E-12
node -2.844845677121403E-14 7.785306199166349E-14 -1.169656125456354E-11 1.108040557493991E-9 -1.102439768600856E-9 2.721003229561368E-11
peri 1.276836775230166E-13 -3.372048763465081E-13 3.219057688310206E-10 -1.102439768600856E-9 1.200315746163892E-9 -2.833443481699922E-11
i -1.183553792528694E-14 3.221993498295034E-14 -6.692019524093136E-12 2.721003229561368E-11 -2.833443481699922E-11 3.907394587756235E-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 15.98   n/a MPCxxxxx  
diameter diameter 3.729 km 0.304 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

213036 (1997 WD45)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1997 WD45 = 2006 SR37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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