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264P/Larsen
Classification: Jupiter-family Comet          SPK-ID: 1000493
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2453699.5 (2005-Nov-25.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3737354519164309 1.6245e-06  
a 3.893370787431752 5.9953e-07 au
q 2.438280096712716 6.6797e-06 au
i 25.14826773180474 7.7587e-05 deg
node 220.9675476087703 3.2326e-05 deg
peri 346.6190617948315 0.0013808 deg
M 79.76668654609607 0.0005841 deg
tp 2453077.763839074114
(2004-Mar-13.26383907)
0.0044124 TDB
period 2805.996182428532
7.68
0.00064813
1.774e-06
d
yr
n .128296682031986 2.9634e-08 deg/d
Q 5.348461478150788 8.236e-07 au
  Orbit Determination Parameters
   # obs. used (total)      112  
   data-arc span      5541 days (15.17 yr)  
   first obs. used      2004-04-22  
   last obs. used      2019-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      1  
   norm. resid. RMS      .78028  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:28:10  

Additional Information
 Earth MOID = 1.43785 au 
 Jupiter MOID = .222378 au 
 T_jup = 2.789 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 16.7   0.7 18 2 parameter fit from 48 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 18 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2011.9   264P/2012 L4       
 2004.2   264P/2004 H3       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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