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C/2012 X1 (LINEAR)
Classification: Comet          SPK-ID: 1003224
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2456644.5 (2013-Dec-18.0) TDB
Reference: JPL 66 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .989572081770421 3.1087e-06  
a 153.3297479812039 0.045826 au
q 1.59891007410995 1.3455e-06 au
i 44.36732616876064 1.3275e-05 deg
node 113.1464275550719 1.6483e-05 deg
peri 132.11367729 8.0263e-05 deg
M 359.9659286091901 1.5344e-05 deg
tp 2456710.133478338204
(2014-Feb-21.63347834)
0.00014336 TDB
period 693486.5774506851
1898.66
310.89
0.8512
d
yr
n .0005191160315220378 2.3272e-07 deg/d
Q 305.0605858882978 0.091173 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] 3.586023282829287E-8 7.037E-10
A2 [EST] 2.19718934357843E-9 8.5E-10
A3 [EST] 5.347680062923145E-9 1.632E-10
DT [EST] 25.99367220215736 2.322
  Orbit Determination Parameters
   # obs. used (total)      2560  
   data-arc span      1038 days (2.84 yr)  
   first obs. used      2012-12-08  
   last obs. used      2015-10-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .4579  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:32:29  

Additional Information
 Earth MOID = .751503 au 
 Jupiter MOID = 1.06571 au 
 T_jup = 1.152 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 5.5   1. 66 2 parameter fit from 366 observations, autocmod 2.9c
comet total magnitude slope K1 14.25   n/a 66 autocmod 2.9c
comet nuclear magnitude M2 10.8   0.9 66 from 1961 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 66 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 66 autocmod 2.9c

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2014.1   C/2012 X1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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