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JPL Small-Body Database Browser
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305789 (2009 DK71)
Classification: Main-belt Asteroid          SPK-ID: 2305789
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1260584937658543 1.0097e-07  
a 2.376931881948899 2.8258e-08 au
q 2.077299429126383 2.2934e-07 au
i 1.928457099522218 1.1203e-05 deg
node 44.35660877176812 0.00023442 deg
peri 112.5268338677299 0.0002395 deg
M 277.5883953680806 5.8172e-05 deg
tp 2458906.914561656018
(2020-Feb-27.41456166)
0.0002204 TDB
period 1338.515888494687
3.66
2.3869e-05
6.535e-08
d
yr
n .2689545959778341 4.7962e-09 deg/d
Q 2.676564334771415 3.182e-08 au
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      7556 days (20.69 yr)  
   first obs. used      1998-01-28  
   last obs. used      2018-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:04:44  

Additional Information
 Earth MOID = 1.08805 au 
 Jupiter MOID = 2.30717 au 
 T_jup = 3.529 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456286.5 (2012-Dec-25.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1256699281883591 1.0126e-07  
q 2.077872228117947 2.2997e-07 au
tp 2456230.630034140807
(2012-Oct-30.13003414)
0.00018679 TDB
node 44.36915983548278 0.00023435 deg
peri 112.6572199220613 0.00023942 deg
i 1.929084303249258 1.1202e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      103  
   data-arc span      7556 days (20.69 yr)  
   first obs. used      1998-01-28  
   last obs. used      2018-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61349  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 12:04:44  

Additional Information
 Jupiter MOID = 2.30717 au 
 T_jup = 3.529 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.025451988713855E-14 -2.318335637875522E-14 1.309216077703516E-11 3.516329477748021E-14 3.364940006694275E-12 1.352580218395643E-15
q -2.318335637875522E-14 5.288434672123806E-14 -2.818038615477268E-11 -8.485166945320014E-14 -7.229831465485046E-12 -2.309079972569054E-15
tp 1.309216077703516E-11 -2.818038615477268E-11 3.489105706062593E-8 3.046540697537799E-11 9.209389105136851E-9 4.617499754707148E-12
node 3.516329477748021E-14 -8.485166945320014E-14 3.046540697537799E-11 5.491904718230886E-8 -5.48797579500744E-8 -1.184700380726171E-9
peri 3.364940006694275E-12 -7.229831465485046E-12 9.209389105136851E-9 -5.48797579500744E-8 5.732220259740293E-8 1.185296480547814E-9
i 1.352580218395643E-15 -2.309079972569054E-15 4.617499754707148E-12 -1.184700380726171E-9 1.185296480547814E-9 1.254824072356607E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.5   n/a MPO460268  

305789 (2009 DK71)          Discovered 2009-Feb-18 by La Sagra at La Sagra
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2009 DK71 = 1998 BV35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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