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20347 Wunderlich (1998 HM121)
Classification: Main-belt Asteroid          SPK-ID: 2020347
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08565071311123112 3.871e-08  
a 2.732020352837726 1.485e-08 au
q 2.498020861382777 1.0718e-07 au
i 5.782472036557648 4.6435e-06 deg
node 121.4561147247965 4.6044e-05 deg
peri 169.0988935397004 5.488e-05 deg
M 303.3640007612493 3.0972e-05 deg
tp 2459459.986273378415
(2021-Sep-02.48627338)
0.000142 TDB
period 1649.393666075098
4.52
1.3448e-05
3.682e-08
d
yr
n .2182620240422392 1.7795e-09 deg/d
Q 2.966019844292675 1.6122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1370  
   data-arc span      8769 days (24.01 yr)  
   first obs. used      1997-01-15  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5051  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:17:35  

Additional Information
 Earth MOID = 1.48012 au 
 Jupiter MOID = 2.17347 au 
 T_jup = 3.341 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.47   n/a E2021B10  
diameter diameter 6.606 km 0.430 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20347 Wunderlich           Discovered 1998 Apr. 23 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Daniel Wunderlich mentored a finalist in the 2004 Intel Science Talent Search, a science competition for high school seniors. He teaches at the Terre Haute South Vigo High School, Terre Haute, Indiana.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040415/MPCPages.arcLast Updated: 2004-04-20

Alternate Designations
 1998 HM121 = 1997 CR23 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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