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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 63 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .9984250714381232 5.1904e-07  
a 515.4681905802619 0.16984 AU
q .8118255760838072 8.4276e-08 AU
i 64.04094564142038 1.5142e-05 deg
node 70.7111752552326 7.0314e-06 deg
peri 67.16644264756407 6.3058e-06 deg
M .0004435614102993804 2.1887e-07 deg
tp 2456649.233131356799
(2013-Dec-22.73313136)
7.4565e-06 JED
period 4274656.60340608
11703.37
2112.7
5.784
d
yr
n 8.421729121191845E-5 4.1624e-08 deg/d
Q 1030.12455558444 0.33942 AU
  Orbit Determination Parameters
   # obs. used (total)      3750  
   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      .81551  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:26:13  

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 0.9 63 2 parameter fit from 480 observations, autocmod 2.6
comet total magnitude slope K1 7.   n/a 63 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 0.396726089471005 0.396725750774814 0.396726428167189 46.7527966795382 46.7526530265489 2456616.237827787 0.00619478277282523 16.9279869643225 10.1011780032079 -10.1389912134281 3504322.33914238 T 63 CATAB v2.0c-linF95 2015-Jun-04 15:26:23 2015-Jun-04 15:26

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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