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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 2456654.5 (2013-Dec-28.0) TDB
Reference: JPL 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9984250980677656 5.2066e-07  
a 515.4769051108982 0.17038 AU
q .8118255738813714 8.4335e-08 AU
i 64.04094599806631 1.5152e-05 deg
node 70.71117560925536 7.0499e-06 deg
peri 67.16644267484966 6.3091e-06 deg
M .0004435501808996367 2.1955e-07 deg
tp 2456649.233131135115
(2013-Dec-22.73313113)
7.4684e-06 JED
period 4274765.005197077
11703.67
2119.4
5.803
d
yr
n 8.42151555845356E-5 4.1754e-08 deg/d
Q 1030.141984647915 0.34049 AU
  Orbit Determination Parameters
   # obs. used (total)      3747  
   data-arc span      372 days (1.02 yr)  
   first obs. used      2013-09-07  
   last obs. used      2014-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   fit RMS      .81576  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-31 12:14:02  

Additional Information
 Earth MOID = .14614 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 01. 61 2 parameter fit from 480 observations, autocmod 2.6
comet total magnitude slope K1 7.   n/a 61 autocmod 2.6

[ 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 0.396726093606732 0.396725754440452 0.396726432773 46.7527972338731 46.752653580887 2456616.237827920 0.00620146282486818 16.9548516725818 10.1017468688461 -10.1683447844912 3499746.32914733 T 61 CATAB v2.0c-linF95 2015-Jan-31 12:14:14 2015-Jan-31 12:14

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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