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259P/Garradd (2008 R1)
Classification: Encke-type Comet          SPK-ID: 1002991
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454857.5 (2009-Jan-26.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3421713199101517 1.8614e-06  
a 2.725734150736381 1.905e-06 AU
q 1.793066098654737 6.2338e-06 AU
i 15.90311961531283 5.4019e-05 deg
node 51.99140840286176 0.00029611 deg
peri 256.5036003931765 0.00034634 deg
M 40.45680187275383 0.00010416 deg
tp 2454672.780511229823
(2008-Jul-25.28051123)
0.00037354 JED
period 1643.70421978531
4.50
0.0017231
4.718e-06
d
yr
n .2190175067184659 2.296e-07 deg/d
Q 3.658402202818025 2.5568e-06 AU
  Orbit Determination Parameters
   # obs. used (total)      39  
   data-arc span      1370 days (3.75 yr)  
   first obs. used      2008-07-15  
   last obs. used      2012-04-15  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      2  
   fit RMS      .94127  
   data source      ORB  
   producer      Otto Matic  
   solution date      2012-Jun-06 14:09:28  

Additional Information
 Earth MOID = .853784 AU 
 T_jup = 3.217 
[ 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 14.8 mag 0.2 10 2 parameter fit from 34 observations, autocmod 2.5b
comet total magnitude slope K1 15.   n/a 10 autocmod 2.5b
comet nuclear magnitude M2 19.5 mag 1. 10 from 4 observations, autocmod 2.5b
comet nuclear magnitude slope K2 5.   n/a 10 autocmod 2.5b
comet nuclear phase coefficient PC 0.03   n/a 10 autocmod 2.5b

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2008.6   259P/2008 R1       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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