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250P/Larson
Classification: Jupiter-family Comet          SPK-ID: 1003117
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456434.5 (2013-May-22.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4073539093287017 2.6551e-07  
a 3.733359058999408 7.5143e-08 au
q 2.212560651388276 1.0234e-06 au
i 13.29555335557225 1.3658e-05 deg
node 73.74353604201914 9.5385e-05 deg
peri 44.92483792975233 0.00016448 deg
M 125.5846622932318 4.9358e-05 deg
tp 2455515.358936522810
(2010-Nov-14.85893652)
0.00036168 TDB
period 2634.80250541408
7.21
7.9548e-05
2.178e-07
d
yr
n .1366326315768487 4.1251e-09 deg/d
Q 5.254157466610541 1.0575e-07 au
  Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      8563 days (23.44 yr)  
   first obs. used      1995-12-22  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62484  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:16:41  

Additional Information
 Earth MOID = 1.25139 au 
 Jupiter MOID = .517804 au 
 T_jup = 2.899 
[ 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 15.5   0.5 29 2 parameter fit from 187 observations, autocmod 2.8
comet total magnitude slope K1 8.   n/a 29 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2010.9   250P/2011 A1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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