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C/2009 F6 (Yi-SWAN)
Classification: Comet          SPK-ID: 1003019
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2454973.5 (2009-May-22.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9975143424739534 4.422e-06  
a 512.6044057937434 0.91213 au
q 1.274158999145848 1.1385e-06 au
i 85.7647855400708 4.1384e-05 deg
node 278.6790256429147 4.7651e-05 deg
peri 129.7723269890618 0.00013108 deg
M .001237036211202921 3.3113e-06 deg
tp 2454958.933613114178
(2009-May-07.43361311)
0.00013779 TDB
period 4239083.085366305
11605.98
11315
30.98
d
yr
n 8.492402549097287E-5 2.2667e-07 deg/d
Q 1023.934652588341 1.822 au
  Orbit Determination Parameters
   # obs. used (total)      487  
   data-arc span      330 days  
   first obs. used      2009-04-06  
   last obs. used      2010-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   norm. resid. RMS      .65944  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:30  

Additional Information
 Earth MOID = .504727 au 
 Jupiter MOID = .723915 au 
 T_jup = 0.113 
[ 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 9.7   1. 29 2 parameter fit from 80 observations, autocmod 2.9c
comet total magnitude slope K1 13.   n/a 29 autocmod 2.9c
comet nuclear magnitude M2 13.2   1. 29 from 320 observations, autocmod 2.9c
comet nuclear magnitude slope K2 5.   n/a 29 autocmod 2.9c
comet nuclear phase coefficient PC 0.03   n/a 29 autocmod 2.9c

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2008-Feb-24 00:00 00:03 Jupiter 0.796929510623083 0.796849470201198 0.797009552329546 22.1418713781857 22.0938170789613 2454520.500232792 2.51364800621033 4303.74270675837 497.421779228577 22.1582663125448 89361.1379739497 T 29 CATAB v2.0g-lin.ifort 2021-Apr-15 23:31:33 2021-Apr-15 23:31

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2009.3   C/2009 F6       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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