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C/2015 F5 (SWAN-Xingming)
Classification: Halley-type Comet* [NEO]          SPK-ID: 1003382
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457133.5 (2015-Apr-21.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9776355273044856 5.0365e-05  
a 15.47075653971312 0.035058 au
q .3459953122113656 4.9792e-06 au
i 149.2590285451703 0.00093922 deg
node 287.7365667846381 0.0011599 deg
peri 13.3839479627594 0.0040396 deg
M .387145510352612 0.0013286 deg
tp 2457109.597821741786
(2015-Mar-28.09782174)
0.00078141 TDB
period 22226.22745933385
60.85
75.551
0.2068
d
yr
n .01619708070830612 5.5056e-05 deg/d
Q 30.59551776721487 0.069333 au
  Orbit Determination Parameters
   # obs. used (total)      219  
   data-arc span      45 days  
   first obs. used      2015-04-05  
   last obs. used      2015-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      6  
   norm. resid. RMS      1.0856  
   source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-11 15:44:56  

Additional Information
 Earth MOID = .441563 au 
 T_jup = -0.287 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 17.6   1. 9 from 91 observations, assumed slope, autocmod 2.6
comet total magnitude slope K1 16.   n/a 9 autocmod 2.6

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2015.2   C/2015 F5       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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