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358P/PANSTARRS
Classification: Encke-type Comet          SPK-ID: 1003208
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456372.5 (2013-Mar-21.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2361237394619087 4.7728e-07  
a 3.15545583047806 2.334e-07 au
q 2.410377800078698 1.6269e-06 au
i 11.05782924966428 4.894e-05 deg
node 85.77652705493453 0.00020616 deg
peri 300.5769009385666 0.00027251 deg
M 33.59789262996173 0.00011045 deg
tp 2456181.426208242047
(2012-Sep-10.92620824)
0.00062336 TDB
period 2047.347605710276
5.61
0.00022715
6.219e-07
d
yr
n .1758372632941864 1.9509e-08 deg/d
Q 3.900533860877422 2.8851e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A3 [EST] -1.486358244997674E-8 3.96E-10
ALN [SET] .0408373333128795 n/a
NK [SET] 2.6 n/a
NM [SET] 2. n/a
NN [SET] 3. n/a
R0 [SET] 5. n/a
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      6680 days (18.29 yr)  
   first obs. used      2001-12-09  
   last obs. used      2020-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .50697  
   source      ORB  
   producer      Shantanu Naidu  
   solution date      2020-Apr-07 13:12:42  

Additional Information
 Earth MOID = 1.4378 au 
 Jupiter MOID = 1.6606 au 
 T_jup = 3.134 
 Nongrav. accels. using CO driven g(r) 
[ 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 15.7   1. 19 2 parameter fit from 122 observations, autocmod 2.8
comet total magnitude slope K1 8.5   n/a 19 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2018.3   358P/2017 O3       
 2012.7   358P/2012 T1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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