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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0354020774238718 5.5719e-05  
a 43.72857698160581 0.0033135 au
q 42.18049451366726 0.00076569 au
i 3.300384571902174 7.8451e-05 deg
node 83.37801170719564 0.0015608 deg
peri 133.8185759251267 0.023946 deg
M 2.000761883181823 0.022089 deg
tp 2458613.498314602874
(2019-May-09.99831460)
6.5221 TDB
period 105620.0682946343
289.17
12.005
0.03287
d
yr
n .003408443166271733 3.8741e-07 deg/d
Q 45.27665944954435 0.0034308 au
  Orbit Determination Parameters
   # obs. used (total)      64  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-04-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .59821  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:48:01  

Additional Information
 Earth MOID = 41.1733 au 
 Jupiter MOID = 36.7383 au 
 T_jup = 5.904 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457881.5 (2017-May-08.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04155962015388319 5.6534e-05  
q 42.17555684735592 0.00073814 au
tp 2457187.107572375517
(2015-Jun-13.60757238)
4.6618 TDB
node 83.38647724429995 0.0015568 deg
peri 128.5703236943233 0.017197 deg
i 3.29975014550826 7.8189e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      64  
   data-arc span      7709 days (21.11 yr)  
   first obs. used      1999-03-21  
   last obs. used      2020-04-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .59821  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:48:01  

Additional Information
 Jupiter MOID = 36.7383 au 
 T_jup = 5.904 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.196054032535126E-9 4.155770394654171E-8 -8.662161999131859E-5 8.095159201803649E-10 -3.189504410526355E-7 3.493117139914716E-11
q 4.155770394654171E-8 5.448537494117731E-7 -.001282660457103636 1.092824206779609E-8 -4.721208519299877E-6 4.433541676163652E-10
tp -8.662161999131859E-5 -.001282660457103636 21.73265713067767 -6.445497965497245E-5 .07984014344464657 7.399172871764319E-7
node 8.095159201803649E-10 1.092824206779609E-8 -6.445497965497245E-5 2.423616597577335E-6 -2.65622684707736E-6 -1.201867729836221E-7
peri -3.189504410526355E-7 -4.721208519299877E-6 .07984014344464657 -2.65622684707736E-6 .0002957275457751963 1.22701522056965E-7
i 3.493117139914716E-11 4.433541676163652E-10 7.399172871764319E-7 -1.201867729836221E-7 1.22701522056965E-7 6.113538597915798E-9

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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