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201P/LONEOS
Classification: Jupiter-family Comet          SPK-ID: 1000353
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456055.5 (2012-May-08.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6128609831134981 1.2671e-07  
a 3.461246757052517 3.284e-08 au
q 1.339983666726904 4.3685e-07 au
i 7.036519435402863 1.1647e-05 deg
node 35.28566793083142 7.7191e-05 deg
peri 24.95396013118243 8.4558e-05 deg
M 209.7991790915606 8.6813e-06 deg
tp 2457036.834517823135
(2015-Jan-14.33451782)
5.4076e-05 TDB
period 2352.053898771193
6.44
3.3474e-05
9.165e-08
d
yr
n .1530577169970801 2.1783e-09 deg/d
Q 5.582509847378129 5.2967e-08 au
  Orbit Determination Parameters
   # obs. used (total)      865  
   data-arc span      4998 days (13.68 yr)  
   first obs. used      2001-08-09  
   last obs. used      2015-04-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .75949  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 11:13:14  

Additional Information
 Earth MOID = .35796 au 
 Jupiter MOID = .242216 au 
 T_jup = 2.783 
[ 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 13.0   0.9 40 2 parameter fit from 307 observations, autocmod 2.8
comet total magnitude slope K1 15.25   n/a 40 autocmod 2.8
comet nuclear magnitude M2 16.7   0.8 40 from 640 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 40 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 40 autocmod 2.8

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2008.6   201P/2008 Q4       
 2002.2   201P/2001 R1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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