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(2009 DP2)
Classification: Centaur          SPK-ID: 3456728
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4211390267873184 0.00052571  
a 6.695237912065726 0.0043703 au
q 3.875611933668808 0.0014862 au
i 26.9756278544633 0.024389 deg
node .6956403984567842 0.011689 deg
peri 126.2312904366358 0.11493 deg
M 261.0907492566488 0.21028 deg
tp 2460939.028678831487
(2025-Sep-20.52867883)
5.3963 TDB
period 6327.722833563239
17.32
6.1956
0.01696
d
yr
n .05689250453425414 5.5705e-05 deg/d
Q 9.514863890462642 0.0062108 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      47 days  
   first obs. used      2009-02-17  
   last obs. used      2009-04-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .5137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:36:05  

Additional Information
 Earth MOID = 2.97122 au 
 Jupiter MOID = .966677 au 
 T_jup = 2.611 
[ hide covariance matrix ]
Orbital Elements at Epoch 2454915.5 (2009-Mar-25.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .423062040866693 0.00052393  
q 3.855648316896046 0.0014885 au
tp 2454631.195252181221
(2008-Jun-13.69525218)
0.81288 TDB
node .7971709914058417 0.011661 deg
peri 126.4932197104119 0.11579 deg
i 27.00562873783106 0.024391 deg
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      47 days  
   first obs. used      2009-02-17  
   last obs. used      2009-04-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .5137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:36:05  

Additional Information
 Jupiter MOID = .966677 au 
 T_jup = 2.611 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.745069229631113E-7 -6.169907262287067E-7 -.0003504346761951884 -2.127432307122508E-6 -5.675175617249077E-5 4.31406806491188E-6
q -6.169907262287067E-7 2.215519496601477E-6 .0003840284319193442 -5.046608915980958E-6 9.328464816597946E-5 1.094724111770363E-5
tp -.0003504346761951884 .0003840284319193442 .6607802366917559 .007717677991816303 .09122085229489058 -.01601055136793656
node -2.127432307122508E-6 -5.046608915980958E-6 .007717677991816303 .0001359879295310249 .0008726735681173864 -.000284407909034286
peri -5.675175617249077E-5 9.328464816597946E-5 .09122085229489058 .0008726735681173864 .01340728518068299 -.001800716134801014
i 4.31406806491188E-6 1.094724111770363E-5 -.01601055136793656 -.000284407909034286 -.001800716134801014 .0005949201188419268

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.032   .54956 4 autocmod 2.9c

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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