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129772 (1999 HR11)
Classification: TransNeptunian Object          SPK-ID: 2129772
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03706540071830586 0.00039639  
a 43.80121501762788 0.023706 au
q 42.17770543105082 0.005548 au
i 3.299457873744694 0.00019826 deg
node 83.3920535682943 0.0079178 deg
peri 133.7806953676931 0.16361 deg
M 1.336545196118417 0.15062 deg
tp 2458607.394778948358
(2019-May-03.89477895)
44.542 TDB
period 105883.3475961653
289.89
85.961
0.2353
d
yr
n .003399968060823171 2.7602e-06 deg/d
Q 45.42472460420493 0.024585 au
  Orbit Determination Parameters
   # obs. used (total)      26  
   data-arc span      5846 days (16.01 yr)  
   first obs. used      1999-03-21  
   last obs. used      2015-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .25306  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 10:34:15  

Additional Information
 Earth MOID = 41.1716 au 
 Jupiter MOID = 36.7368 au 
 T_jup = 5.908 
[ hide covariance matrix ]
Orbital Elements at Epoch 2452917.5 (2003-Oct-05.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03829318139647783 0.00040452  
q 42.19605241315796 0.0051629 au
tp 2455710.589573352243
(2011-May-29.08957335)
29.092 TDB
node 83.30688297794556 0.0078912 deg
peri 123.2515752519894 0.10693 deg
i 3.302747336762705 0.00019838 deg
  Orbit Determination Parameters
   # obs. used (total)      26  
   data-arc span      5846 days (16.01 yr)  
   first obs. used      1999-03-21  
   last obs. used      2015-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .25306  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 10:34:15  

Additional Information
 Jupiter MOID = 36.7368 au 
 T_jup = 5.908 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.636344428708197E-7 2.08131854713044E-6 -.001103560271199766 4.578668974346084E-8 -4.076963698183907E-6 2.362175986942694E-9
q 2.08131854713044E-6 2.665562595379373E-5 -.02439915593687617 6.114428861304621E-7 -8.985942071084802E-5 2.934621734432603E-8
tp -.001103560271199766 -.02439915593687617 846.3375127884941 -.002542637245277028 3.102250655626747 4.472627711634856E-5
node 4.578668974346084E-8 6.114428861304621E-7 -.002542637245277028 6.227151264530988E-5 -7.147827874809308E-5 -1.498264958081414E-6
peri -4.076963698183907E-6 -8.985942071084802E-5 3.102250655626747 -7.147827874809308E-5 .01143336527696545 1.659725106680212E-6
i 2.362175986942694E-9 2.934621734432603E-8 4.472627711634856E-5 -1.498264958081414E-6 1.659725106680212E-6 3.93530444684242E-8

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.2   n/a MPC47777  

129772 (1999 HR11)          Discovered 1999-Apr-17 by Kitt Peak at Kitt Peak
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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