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14681 Estellechurch (1999 XW108)
Classification: Main-belt Asteroid          SPK-ID: 2014681
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1735476781240021 3.5482e-08  
a 3.096610731025141 1.5935e-08 au
q 2.559201128601859 1.126e-07 au
i .9386940910617205 3.8119e-06 deg
node 296.7822273011535 0.00023744 deg
peri 3.30142181500488 0.00023787 deg
M 42.01172674162028 1.2146e-05 deg
tp 2458968.228256534565
(2020-Apr-28.72825653)
6.7859e-05 TDB
period 1990.34493777943
5.45
1.5363e-05
4.206e-08
d
yr
n .1808731708593394 1.3961e-09 deg/d
Q 3.634020333448424 1.87e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1569  
   data-arc span      10003 days (27.39 yr)  
   first obs. used      1993-09-15  
   last obs. used      2021-02-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46988  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:36:09  

Additional Information
 Earth MOID = 1.5416 au 
 Jupiter MOID = 1.59284 au 
 T_jup = 3.200 
[ 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 13.97   n/a E2021B10  
rotation period rot_per 12.466 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

14681 Estellechurch           Discovered 1999 Dec. 4 by the Catalina Sky Survey.
Estelle C. Church (b. 1980) is a Lockheed Martin test engineer for the OSIRIS-REx Asteroid Sample Return Mission, focusing on the integration of the guidance system and the asteroid encounter mission phase. She also worked on the Juno and MAVEN missions and as an optics engineer.
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

[ show close-approach data ]
Alternate Designations
 1999 XW108 = 1998 MP37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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