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JPL Small-Body Database Browser
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P/2004 A1 (LONEOS)
Classification: Jupiter-family Comet          SPK-ID: 1000473
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2453259.5 (2004-Sep-11.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3083433912833541 7.3166e-06  
a 7.897768037639555 9.7384e-05 au
q 5.462543457344494 9.8308e-06 au
i 10.57603039470491 2.684e-05 deg
node 125.2446516273449 7.4251e-05 deg
peri 20.49554162380926 0.00050579 deg
M .7129135210547348 0.00027 deg
tp 2453243.445775240430
(2004-Aug-25.94577524)
0.0058178 TDB
period 8106.903211618945
22.20
0.14994
0.0004105
d
yr
n .04440659899381088 8.2134e-07 deg/d
Q 10.33299261793461 0.00012741 au
  Orbit Determination Parameters
   # obs. used (total)      533  
   data-arc span      1382 days (3.78 yr)  
   first obs. used      2003-10-25  
   last obs. used      2007-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .70286  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:30:36  

Additional Information
 Earth MOID = 4.47606 au 
 Jupiter MOID = .190905 au 
 T_jup = 2.963 
[ 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 9.8   0.7 45 2 parameter fit from 224 observations, autocmod 2.9c
comet total magnitude slope K1 7.25   n/a 45 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2004.7   P/2004 A1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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