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C/2013 R1 (Lovejoy)
Classification: Comet          SPK-ID: 1003274
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456649.5 (2013-Dec-23.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .998427111237883 5.5367e-07  
a 516.136609606255 0.18165 AU
q .8118254729668635 8.5521e-08 AU
i 64.04096011315028 1.5376e-05 deg
node 70.71119763788801 7.4231e-06 deg
peri 67.16638017587984 6.3827e-06 deg
M 2.243443402359985E-5 1.1461e-08 deg
tp 2456649.233094181908
(2013-Dec-22.73309418)
7.7297e-06 JED
period 4282973.861165495
11726.14
2261
6.19
d
yr
n 8.405374668853006E-5 4.4372e-08 deg/d
Q 1031.461393739543 0.36301 AU
  Orbit Determination Parameters
   # obs. used (total)      3668  
   data-arc span      302 days  
   first obs. used      2013-09-07  
   last obs. used      2014-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .81845  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 11:53:01  

Additional Information
 Earth MOID = .14619 AU 
 T_jup = 0.499 
[ 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 11.6 mag 0.9 49 2 parameter fit from 465 observations, autocmod 2.5c
comet total magnitude slope K1 7.   n/a 49 autocmod 2.5c

[ 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
2013-Nov-19 17:42 < 00:01 Earth 0.396726201193677 0.396725852323046 0.396726550064307 46.7528137273934 46.752670074497 2456616.237831304 0.00633736254700922 17.50755348494 10.1132327005719 -10.7183082897786 3409148.23040216 T 49 CATAB v2.0c-linF95 2014-Jul-14 11:53:09 2014-Jul-14 11:53

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2014.0   C/2013 R1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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