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110P/Hartley 3
Classification: Jupiter-family Comet          SPK-ID: 1000119
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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:
Orbital Elements at Epoch 2457142.5 (2015-Apr-30.0) TDB
Reference: JPL K212/9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3149589356127522 2.5014e-07  
a 3.613363348226702 3.2834e-07 au
q 2.475302274087089 1.0284e-06 au
i 11.69076166832122 1.7572e-05 deg
node 287.7120623085165 3.0406e-05 deg
peri 167.7467760812752 8.1206e-05 deg
M 19.11570926837812 3.9583e-05 deg
tp 2457009.284795645079
(2014-Dec-17.78479565)
0.00026571 TDB
period 2508.799066488446
6.87
0.00034196
9.362e-07
d
yr
n .1434949513529157 1.9559e-08 deg/d
Q 4.751424422366314 4.3176e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1388  
   data-arc span      2704 days (7.40 yr)  
   first obs. used      2013-08-11  
   last obs. used      2021-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48245  
   source      ORB  
   producer      Davide Farnocchia  
   solution date      2021-Feb-01 11:37:09  

Additional Information
 Earth MOID = 1.49394 au 
 Jupiter MOID = .474927 au 
 T_jup = 2.989 
[ 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
comet total magnitude M1 6.7   1. K212/9 from 279 observations, assumed slope, autocmod 2.9a
comet total magnitude slope K1 20.25   n/a K212/9 autocmod 2.9a
comet nuclear magnitude M2 13.3   0.9 K212/9 from 1101 observations, autocmod 2.9a
comet nuclear magnitude slope K2 5.   n/a K212/9 autocmod 2.9a
comet nuclear phase coefficient PC 0.03   n/a K212/9 autocmod 2.9a
diameter diameter 4.3 km n/a Lamy,P.L.,Toth,I.,Fernandez,Y.R.,Weaver,H.A. (2004) Comets II, pp. 223-264  
rotation period rot_per 10.153 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:
[Kokotankekova, R.; Snodgrass, C.; Lacerda, P.; Green S.F.; et al. (2017) Mon. Not. Royal Ast. Soc. 471, 2974-3007.]

110P/Hartley 3          Discovered 1988-Feb-19 by Hartley, Malcolm at U. K. Schmidt Telescope, Siding Spring
discovered on plate/photo taken on discovery date
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1994.4   110P/1993 M1   1994 XII   1993m 
 1987.5   110P/1988 D1   1987 XII   1988d 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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