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JPL Small-Body Database Browser
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18699 Quigley (1998 HL45)
Classification: Main-belt Asteroid          SPK-ID: 2018699
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02961218552320474 5.3522e-08  
a 2.761609372346366 1.5928e-08 au
q 2.679832083269824 1.525e-07 au
i 3.910523583106207 5.5403e-06 deg
node 328.6921480367554 6.7384e-05 deg
peri 174.4021585679997 0.00010573 deg
M 268.6137741611757 8.1994e-05 deg
tp 2459026.020061208836
(2020-Jun-25.52006121)
0.00038256 TDB
period 1676.261609767688
4.59
1.4502e-05
3.97e-08
d
yr
n .2147636132106444 1.858e-09 deg/d
Q 2.843386661422907 1.6399e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1116  
   data-arc span      13060 days (35.76 yr)  
   first obs. used      1984-03-05  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5575  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:30:44  

Additional Information
 Earth MOID = 1.69217 au 
 Jupiter MOID = 2.14555 au 
 T_jup = 3.337 
[ 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 14.4   n/a MPO365476  
rotation period rot_per 216.487 h n/a LCDB (Rev. 2019-January); 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.]

18699 Quigley           Discovered 1998 Apr. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Carolyn Ann Quigley (b. 1986) was awarded third place in the 2003 Intel International Science and Engineering Fair for her botany team project. She attends the Salpointe Catholic High School, Tucson, Arizona, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040830/MPCPages.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 HL45 = 1988 DM3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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