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P/2011 NO1 (Elenin)
Classification: Jupiter-family Comet [NEO]          SPK-ID: 1003138
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2455757.5 (2011-Jul-15.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .7789841914811642 0.00010492  
a 5.614842819273608 0.0024443 au
q 1.240969025407936 5.9378e-05 au
i 15.38420163394576 0.0082317 deg
node 296.1139033145848 0.0012912 deg
peri 263.4465227318821 0.01373 deg
M 13.02330717789982 0.0090976 deg
tp 2455581.698079449389
(2011-Jan-20.19807945)
0.049479 TDB
period 4859.648208683815
13.30
3.1733
0.008688
d
yr
n .07407943631736714 4.8373e-05 deg/d
Q 9.988716613139278 0.0043484 au
  Orbit Determination Parameters
   # obs. used (total)      60  
   data-arc span      51 days  
   first obs. used      2011-06-12  
   last obs. used      2011-08-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .84452  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:31:52  

Additional Information
 Earth MOID = .380671 au 
 Jupiter MOID = .903569 au 
 T_jup = 2.183 
[ 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 17.1   0.7 10 2 parameter fit from 45 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 10 autocmod 2.9c

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2011.1   P/2011 NO1       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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