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168221 Donjennings (2006 JO60)
Classification: Main-belt Asteroid          SPK-ID: 2168221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1887928197750832 5.1674e-08  
a 2.771331803741215 2.9294e-08 au
q 2.248124257980544 1.4898e-07 au
i 3.636429504455714 7.2935e-06 deg
node 53.14783327429729 8.9698e-05 deg
peri 304.1433506965365 9.2089e-05 deg
M 270.074807053854 2.19e-05 deg
tp 2459421.430207128229
(2021-Jul-25.93020713)
0.00010654 TDB
period 1685.121483774999
4.61
2.6719e-05
7.315e-08
d
yr
n .2136344491873251 3.3873e-09 deg/d
Q 3.294539349501887 3.4825e-08 au
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      6134 days (16.79 yr)  
   first obs. used      2002-06-17  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61316  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:28:53  

Additional Information
 Earth MOID = 1.24673 au 
 Jupiter MOID = 2.15745 au 
 T_jup = 3.308 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456875.5 (2014-Aug-06.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1883299045316153 5.1561e-08  
q 2.249014537126531 1.4831e-07 au
tp 2456054.554370347285
(2012-May-07.05437035)
8.5688e-05 TDB
node 53.16068466286996 8.9669e-05 deg
peri 304.6145684132755 9.2085e-05 deg
i 3.637193673295381 7.2944e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      195  
   data-arc span      6134 days (16.79 yr)  
   first obs. used      2002-06-17  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61316  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 07:28:53  

Additional Information
 Jupiter MOID = 2.15745 au 
 T_jup = 3.308 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.65857135842702E-15 -7.549246562039363E-15 3.140838517943798E-13 3.569371528008387E-15 -6.646703626748994E-15 -3.348262208958206E-15
q -7.549246562039363E-15 2.199614541743405E-14 -6.340693189774418E-13 -9.64656435862136E-15 1.398552794866393E-13 1.080714500366168E-14
tp 3.140838517943798E-13 -6.340693189774418E-13 7.342517383382266E-9 -3.101846154992966E-12 1.803318308630968E-9 3.960779279801636E-12
node 3.569371528008387E-15 -9.64656435862136E-15 -3.101846154992966E-12 8.040487660020954E-9 -8.02457918362287E-9 1.85232169093805E-11
peri -6.646703626748994E-15 1.398552794866393E-13 1.803318308630968E-9 -8.02457918362287E-9 8.47958529571835E-9 -1.725618417119274E-11
i -3.348262208958206E-15 1.080714500366168E-14 3.960779279801636E-12 1.85232169093805E-11 -1.725618417119274E-11 5.320794643155229E-11

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 16.5   n/a MPO433077  

168221 Donjennings           Discovered 2006 May 1 by M. W. Buie at Kitt Peak.
Don E. Jennings (b. 1948) of the NASA Goddard Spaceflight Center, served as a Co-Investigator for Surface Composition Science for the New Horizons Mission to Pluto.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-05-29Last Updated: 2018-09-17

[ show close-approach data ]
Alternate Designations
 2006 JO60 = 2004 AK11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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