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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  

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1926-Aug-10 21:01 00:06 Jupiter 1.45273817448327 1.45272793380065 1.45274841641109 6.46619286057511 6.37538589104675 2424738.376013179 5.86670212670877 3058.22879219717 360.027723259179 83.5524647445612 580741.191460244 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
1949-May-27 15:37 00:06 Jupiter 1.29654528883006 1.29652841486415 1.29656216454017 6.41148449329718 6.30876767979806 2433064.150442428 6.05548144734279 2567.81753027127 142.731972482235 71.0370793176319 1073317.30246555 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
1972-Jul-10 03:48 00:03 Jupiter 0.677819737649099 0.677801894913159 0.677837581889349 6.84650694048954 6.66148641879124 2441508.658490371 2.84005478958629 1872.66391027373 176.213196503132 61.678723417835 472086.116242595 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
1996-Mar-18 11:56 00:02 Jupiter 0.64380873439436 0.643798736027177 0.643818733330652 6.91341301836789 6.72041616068838 2450160.996987874 2.28018823125294 1223.48420252268 248.479278274755 68.4688131663902 359587.566895204 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
2020-May-18 16:49 00:04 Jupiter 1.11363528121255 1.11362545420497 1.11364510869306 6.55522826958175 6.43815446335952 2458988.200832718 3.6679748465833 1344.84638256533 188.730089871203 70.0286809863409 721805.759916092 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
2044-Oct-18 22:47 00:03 Jupiter 1.22245784425635 1.22244933973372 1.22246634910684 6.75425875602332 6.65088277225318 2467907.449515694 3.48056865245674 1474.05962546733 296.381751481527 78.2807805919987 532061.656656462 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
2068-Aug-31 19:07 00:02 Jupiter 1.82786609664813 1.82782067817738 1.8279115158866 10.4984231779959 10.4541905884208 2476625.296342507 1.54276853025761 2944.542960436 229.419605184538 40.2216330416213 641392.326074466 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
2102-Oct-04 12:41 00:01 Jupiter 0.591740668842796 0.59171186132942 0.591769476693514 9.10238609710138 8.94374731438639 2489076.028542482 1.33104265215491 1632.67281384335 566.939800664396 -31.182642508573 83953.7920107469 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
2126-Jul-12 19:04 00:04 Jupiter 0.954781738965263 0.954675750143078 0.954887731241602 10.0581875835046 9.96959692361084 2497758.294617553 4.3888252375577 6023.27539789168 487.82823185659 -29.288962024531 123571.034199156 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
2163-Nov-17 23:24 00:01 Jupiter 1.97651357069622 1.97649834091111 1.97652880056132 10.3111294156783 10.2694840351805 2511400.475067345 1.14231714656734 1042.29418465612 359.225102428772 47.1680835022147 516252.285176352 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48
2187-Jun-23 19:32 00:09 Jupiter 1.50338180943453 1.50337551123999 1.50338811024808 6.54609413943761 6.4594524222116 2520019.313779503 8.58475834667442 4628.806196662 229.359433966403 -86.7859305647075 753020.896041681 T 14 CATAB v2.0e-lin.ifort 2017-Nov-30 18:48:45 2017-Nov-30 18:48

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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