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72985 (2002 DK2)
Classification: Main-belt Asteroid          SPK-ID: 2072985
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09318033976431023 3.9476e-08  
a 2.184298981487793 8.1617e-09 au
q 1.980765260245924 8.699e-08 au
i 6.832152577141401 5.6538e-06 deg
node 169.204526137757 2.6027e-05 deg
peri 50.87351474392725 3.7414e-05 deg
M 309.3689267053441 2.7431e-05 deg
tp 2459562.336905322916
(2021-Dec-13.83690532)
9.0233e-05 TDB
period 1179.143202610149
3.23
6.6089e-06
1.809e-08
d
yr
n .3053064286026537 1.7112e-09 deg/d
Q 2.387832702729663 8.9222e-09 au
  Orbit Determination Parameters
   # obs. used (total)      695  
   data-arc span      8063 days (22.08 yr)  
   first obs. used      1999-04-11  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:51:04  

Additional Information
 Earth MOID = .982469 au 
 Jupiter MOID = 2.58306 au 
 T_jup = 3.663 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457253.5 (2015-Aug-19.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09309867992486492 3.9494e-08  
q 1.980585308437256 8.6988e-08 au
tp 2457204.738526495727
(2015-Jul-01.23852650)
8.5696e-05 TDB
node 169.2485372654988 2.6026e-05 deg
peri 50.97773149624513 3.7441e-05 deg
i 6.832447478643431 5.6545e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      695  
   data-arc span      8063 days (22.08 yr)  
   first obs. used      1999-04-11  
   last obs. used      2021-05-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60763  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:51:04  

Additional Information
 Jupiter MOID = 2.58306 au 
 T_jup = 3.663 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.559741119955432E-15 -3.423141790363806E-15 -1.692152135687551E-12 3.428260035385137E-16 -5.153261292099496E-13 -3.755248458416994E-15
q -3.423141790363806E-15 7.566880946956352E-15 3.874887815570031E-12 -1.017639361581105E-15 1.180903807771729E-12 8.39889789399197E-15
tp -1.692152135687551E-12 3.874887815570031E-12 7.343790770534269E-9 8.626152099783668E-12 2.310983745359622E-9 6.385004882908845E-12
node 3.428260035385137E-16 -1.017639361581105E-15 8.626152099783668E-12 6.77329507185392E-10 -6.691201837896872E-10 1.308074981858056E-11
peri -5.153261292099496E-13 1.180903807771729E-12 2.310983745359622E-9 -6.691201837896872E-10 1.401851019487044E-9 -1.097158414967077E-11
i -3.755248458416994E-15 8.39889789399197E-15 6.385004882908845E-12 1.308074981858056E-11 -1.097158414967077E-11 3.197362066576529E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.60   n/a MPCxxxxx  

72985 (2002 DK2)          Discovered 2002-Feb-19 by Yeung, W. K. Y. at Desert Eagle
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2002 DK2 = 1999 JP103 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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