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129148 Sheilahaggard (2005 ET49)
Classification: Main-belt Asteroid          SPK-ID: 2129148
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02532583812864063 6.4549e-08  
a 2.733603133514956 2.2514e-08 au
q 2.664372343047611 1.78e-07 au
i 4.490919177102646 7.227e-06 deg
node 204.1249883423221 5.9113e-05 deg
peri 11.9537546900489 0.00011786 deg
M 85.36829078615656 0.00010125 deg
tp 2458609.032504149365
(2019-May-05.53250415)
0.00046502 TDB
period 1650.82722411823
4.52
2.0395e-05
5.584e-08
d
yr
n .218072487986918 2.6941e-09 deg/d
Q 2.8028339239823 2.3084e-08 au
  Orbit Determination Parameters
   # obs. used (total)      269  
   data-arc span      7507 days (20.55 yr)  
   first obs. used      1998-10-20  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59058  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:06:15  

Additional Information
 Earth MOID = 1.65693 au 
 Jupiter MOID = 2.15895 au 
 T_jup = 3.348 
[ 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 16.0   n/a MPO432771  
diameter diameter 3.110 km 0.569 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

129148 Sheilahaggard           Discovered 2005 Mar. 3 by the Catalina Sky Survey.
Sheila D. Gray Haggard (b. 1971) is a Lockheed Martin test engineer for the OSIRIS-REx Asteroid Sample Return Mission, responsible for development of system verification tests. She has worked many other NASA missions including MGS, Stardust, Odyssey, Spitzer, Genesis, MRO, Grail, MAVEN and InSight.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-08-18Last Updated: 2016-08-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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