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JPL Small-Body Database Browser
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C/2011 KP36 (Spacewatch)
Classification: Jupiter-family Comet          SPK-ID: 1003189
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

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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.


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Orbital Elements at Epoch 2457535.5 (2016-May-27.0) TDB
Reference: JPL 97 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8728677320677293 8.223e-07  
a 38.41124741032881 0.00025058 au
q 4.883308997382662 5.2297e-07 au
i 18.98677469881496 6.7645e-06 deg
node 173.4003247981989 1.7755e-05 deg
peri 180.596804029796 2.2379e-05 deg
M .0004614157496022702 6.3461e-07 deg
tp 2457535.388551056169
(2016-May-26.88855106)
0.00015343 TDB
period 86953.2949704121
238.07
0.85088
0.00233
d
yr
n .004140153632159638 4.0514e-08 deg/d
Q 71.93918582327497 0.00046931 au
  Orbit Determination Parameters
   # obs. used (total)      3610  
   data-arc span      3150 days (8.62 yr)  
   first obs. used      2011-05-21  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .41049  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-09 08:45:02  

Additional Information
 Earth MOID = 3.87823 au 
 Jupiter MOID = .0792696 au 
 T_jup = 2.643 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.5   0.7 97 2 parameter fit from 864 observations, autocmod 2.8
comet total magnitude slope K1 7.   n/a 97 autocmod 2.8
comet nuclear magnitude M2 9.5   0.5 97 from 2468 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a 97 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a 97 autocmod 2.8
diameter diameter 55.100 km 19.400 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (http://adsabs.harvard.edu/abs/2013ApJ...773...22B)  
geometric albedo albedo 0.101   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[centaurs] (http://adsabs.harvard.edu/abs/2013ApJ...773...22B)  

Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2016.4   C/2011 KP36       
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ]
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