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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0294126450212179 5.275e-08  
a 2.761590609714151 1.4908e-08 au
q 2.6803649254167 1.5126e-07 au
i 3.910991331914303 5.0921e-06 deg
node 328.6810203428026 6.3284e-05 deg
peri 174.0880082843514 9.8574e-05 deg
M 354.8155095842193 7.5197e-05 deg
tp 2459024.640204676649
(2020-Jun-24.14020468)
0.00035015 TDB
period 1676.244526779608
4.59
1.3573e-05
3.716e-08
d
yr
n .2147658019153268 1.7391e-09 deg/d
Q 2.842816294011602 1.5347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1252  
   data-arc span      13119 days (35.92 yr)  
   first obs. used      1984-03-05  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54395  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:32:32  

Additional Information
 Earth MOID = 1.69229 au 
 Jupiter MOID = 2.14481 au 
 T_jup = 3.337 
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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-August); 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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1918-May-04 23:23 00:01 Thisb 0.0182655951290066 0.0182492377143793 0.0182819541713147 3.55251664761999 3.55251654254368 2421718.474248143 1.13410967997506 859.411167837281 61.0504473493501 -18.5245505173223 14524.1848037401 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 22:32:49 2020-Feb-22 22:32
1989-Mar-24 03:28 00:05 Amphi 0.0213365928004435 0.0213337244008913 0.0213394613274604 1.18587608028235 1.18587585308215 2447609.644406719 4.75890439246487 164.846880922932 27.9199500802139 30.8753294137093 60623.9584308088 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 22:32:49 2020-Feb-22 22:32
2002-May-22 18:46 < 00:01 Juno 0.0207920174805664 0.0207906461699284 0.0207933887916532 6.82048821299678 6.82048812720733 2452417.282105957 0.328022347328132 68.6130267979457 39.6707109308661 6.05597202109065 45815.6705241836 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 22:32:49 2020-Feb-22 22:32
2089-Aug-10 15:59 00:01 Juno 0.0348894981515432 0.0348762558954722 0.0349027428519298 7.08467765398201 7.0846776047632 2484274.165763580 1.18349542321409 805.369740091519 40.6469963386455 34.9909097991396 73800.4654947411 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 22:32:49 2020-Feb-22 22:32
2109-May-09 18:36 00:02 Eunom 0.0328960620119333 0.0328829135072378 0.032909215603658 4.30715679043563 4.30715669136173 2491485.274673314 2.09384149056994 920.484283684116 53.4702670468827 44.7189854881816 64810.7142497778 T 31 CATAB v2.0f-lin.ifort 2020-Feb-22 22:32:49 2020-Feb-22 22:32

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