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JPL Small-Body Database Browser
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14917 Taco (1994 AD11)
Classification: Main-belt Asteroid          SPK-ID: 2014917
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2097963017112055 4.5825e-08  
a 2.838356559149315 1.5801e-08 au
q 2.242879850102046 1.3031e-07 au
i 12.36710880645262 5.8087e-06 deg
node 324.2771176552222 2.0198e-05 deg
peri 58.13339677517047 2.363e-05 deg
M 182.4663450718802 1.1866e-05 deg
tp 2459461.844821879797
(2021-Sep-04.34482188)
5.9819e-05 TDB
period 1746.621709569795
4.78
1.4585e-05
3.993e-08
d
yr
n .2061121753082242 1.7212e-09 deg/d
Q 3.433833268196584 1.9116e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1547  
   data-arc span      11575 days (31.69 yr)  
   first obs. used      1987-08-30  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47409  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:17:24  

Additional Information
 Earth MOID = 1.27121 au 
 Jupiter MOID = 2.17852 au 
 T_jup = 3.244 
[ 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 12.6   n/a MPO263481  
diameter diameter 9.408 km 0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.7078 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Odden, C.E.; Jusuf, J.M.; Keefe, O.R.; Wang, A.; Zaeder, E.A. (2017) Minor Planet Bull. 44, 181-182.]
geometric albedo albedo 0.200   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14917 Taco           Discovered 1994 Jan. 8 by Spacewatch at Kitt Peak.
Kenneth Dale "Taco" Cockrell (b. 1950), an engineer and pilot with NASA from 1987 to 1990, was then selected as an astronaut and flew on space shuttle missions STS-56, STS-69, STS-80, STS-98 and STS-111.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

Alternate Designations
 1994 AD11 = 1987 QN1 = 1999 AL34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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