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164P/Christensen
Classification: Jupiter-family Comet          SPK-ID: 1000535
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2457002.5 (2014-Dec-11.0) TDB
Reference: JPL K182/9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5402860343298719 1.7014e-07  
a 3.657600466772892 6.1589e-08 au
q 1.681450015417078 6.2351e-07 au
i 16.26201829366678 1.7546e-05 deg
node 88.30743483611026 9.9685e-05 deg
peri 326.0039134537305 0.00011583 deg
M 181.4926066349798 3.3995e-05 deg
tp 2458269.412235918248
(2018-May-30.91223592)
0.0002454 TDB
period 2555.011287392106
7.00
6.4535e-05
1.767e-07
d
yr
n .1408995732333735 3.5588e-09 deg/d
Q 5.633750918128706 9.4865e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1234  
   data-arc span      3484 days (9.54 yr)  
   first obs. used      2010-10-07  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .7046  
   source      ORB  
   producer      Javier Roa  
   solution date      2021-Mar-19 14:55:33  

Additional Information
 Earth MOID = .717724 au 
 Jupiter MOID = .284012 au 
 T_jup = 2.777 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 2.894654315343684E-14 -1.0597326022101E-13 1.352016157435523E-11 -1.662898576137127E-12 -6.321885839092564E-14 -3.440100850443424E-13
q -1.0597326022101E-13 3.88769295620033E-13 -4.81083017053727E-11 6.057239586033853E-12 3.641977072484342E-13 1.252688475593936E-12
tp 1.352016157435523E-11 -4.81083017053727E-11 6.022209889950054E-8 -6.567792759924956E-9 1.604650052353569E-8 -1.56684962760233E-9
node -1.662898576137127E-12 6.057239586033853E-12 -6.567792759924956E-9 9.937180842312359E-9 -1.059841789804134E-8 1.574073095310296E-9
peri -6.321885839092564E-14 3.641977072484342E-13 1.604650052353569E-8 -1.059841789804134E-8 1.341573554964504E-8 -1.771949270399347E-9
i -3.440100850443424E-13 1.252688475593936E-12 -1.56684962760233E-9 1.574073095310296E-9 -1.771949270399347E-9 3.078506772878021E-10

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 14.3   0.7 K182/9 2 parameter fit from 452 observations, autocmod 2.9b
comet total magnitude slope K1 4.5   n/a K182/9 autocmod 2.9b

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2004.4   164P/2004 Y1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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