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304P/Ory
Classification: Jupiter-family Comet          SPK-ID: 1002989
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2455755.5 (2011-Jul-13.0) TDB
Reference: JPL 65 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5741720801836588 6.5927e-08  
a 3.244002352834128 4.6181e-08 au
q 1.381386773786673 2.076e-07 au
i 2.755644377100694 6.4502e-06 deg
node 60.68209500795041 8.2596e-05 deg
peri 329.6596933664369 8.6609e-05 deg
M 168.0646610739305 6.267e-06 deg
tp 2454759.190959982220
(2008-Oct-19.69095998)
3.9078e-05 TDB
period 2134.126544595974
5.84
4.5571e-05
1.248e-07
d
yr
n .1686872790704893 3.6021e-09 deg/d
Q 5.106617931881583 7.2697e-08 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 2.455435791407719E-10 2.514E-11
A2 [EST] 2.606059556890437E-10 2.284E-12
  Orbit Determination Parameters
   # obs. used (total)      1489  
   data-arc span      6681 days (18.29 yr)  
   first obs. used      2002-10-04  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58321  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-30 21:13:02  

Additional Information
 Earth MOID = .388586 au 
 Jupiter MOID = .350784 au 
 T_jup = 2.895 
[ 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 15.0   1. 65 2 parameter fit from 473 observations, autocmod 2.8
comet total magnitude slope K1 15.25   n/a 65 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2014.6   304P/2014 L4       
 2008.8   304P/2008 Q2       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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