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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 ]

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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 
[ show covariance matrix ]

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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