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212P/NEAT
Classification: Jupiter-family Comet          SPK-ID: 1003009
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 2454736.5 (2008-Sep-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5788465760830377 3.0414e-07  
a 3.928375978187702 1.5056e-07 au
q 1.654448993646897 1.1384e-06 au
i 22.39795934058236 2.8515e-05 deg
node 98.92885056048631 5.6522e-05 deg
peri 15.05140142791056 0.00011692 deg
M 351.4840319044455 2.4516e-05 deg
tp 2454803.774351784874
(2008-Dec-03.27435178)
0.00019379 TDB
period 2843.924069560252
7.79
0.0001635
4.476e-07
d
yr
n .126585658124011 7.2775e-09 deg/d
Q 6.202302962728508 2.3772e-07 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      5963 days (16.33 yr)  
   first obs. used      2000-12-01  
   last obs. used      2017-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .79193  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Jun-06 16:14:30  

Additional Information
 Earth MOID = .677625 au 
 Jupiter MOID = .40591 au 
 T_jup = 2.635 
[ 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 16.3   0.5 14 2 parameter fit from 46 observations, autocmod 2.6i
comet total magnitude slope K1 11.   n/a 14 autocmod 2.6i
comet nuclear magnitude M2 18.9   0.9 14 from 75 observations, autocmod 2.6i
comet nuclear magnitude slope K2 5.   n/a 14 autocmod 2.6i
comet nuclear phase coefficient PC 0.03   n/a 14 autocmod 2.6i
diameter diameter 1.7 km 0.3 Fernandez et al. (2005) Astron.J. 130:308-318  
geometric albedo albedo 0.096   0.032 Fernandez et al. (2005) Astron.J. 130:308-318  

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 2001.1   212P/2000 YN30       
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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