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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2454872.5 (2009-Feb-10.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5788843630113104 3.0418e-07  
a 3.928744729091474 1.5114e-07 au
q 1.654455839157313 1.1384e-06 au
i 22.39744798631526 2.8515e-05 deg
node 98.92840178716503 5.6524e-05 deg
peri 15.04690736549059 0.00011692 deg
M 8.699549984486671 2.4551e-05 deg
tp 2454803.765713168349
(2008-Dec-03.26571317)
0.00019378 TDB
period 2844.324511442466
7.79
0.00016413
4.494e-07
d
yr
n .1265678365994287 7.3036e-09 deg/d
Q 6.203033619025636 2.3863e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .78447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 23:27:55  

Additional Information
 Earth MOID = .678929 au 
 Jupiter MOID = .406081 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 18.0   0.8 17 2 parameter fit from 47 observations, autocmod 2.9c
comet total magnitude slope K1 4.5   n/a 17 autocmod 2.9c
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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