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375P/Hill
Classification: Jupiter-family Comet          SPK-ID: 1002323
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457232.5 (2015-Jul-29.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6600393954020469 4.8113e-07  
a 5.566878079207137 1.3025e-07 au
q 1.89251923753035 2.6744e-06 au
i 17.36983896201343 3.3503e-05 deg
node 359.9740294683485 6.0394e-05 deg
peri 119.4342902433378 0.00034105 deg
M 266.8934152666536 4.7408e-05 deg
tp 2458473.277436932811
(2018-Dec-20.77743693)
0.00060163 TDB
period 4797.511138176589
13.13
0.00016837
4.61e-07
d
yr
n .07503890864062208 2.6336e-09 deg/d
Q 9.241236920883924 2.1622e-07 au
  Orbit Determination Parameters
   # obs. used (total)      313  
   data-arc span      4892 days (13.39 yr)  
   first obs. used      2005-12-05  
   last obs. used      2019-04-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60103  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:28:37  

Additional Information
 Earth MOID = .972765 au 
 Jupiter MOID = .00458399 au 
 T_jup = 2.418 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 16.7   0.5 14 2 parameter fit from 241 observations, autocmod 2.9c
comet total magnitude slope K1 6.   n/a 14 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2019.0   375P/2018 T1       
 2005.8   375P/2006 D1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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