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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03719798059295647 5.5808e-05  
a 43.8099800770587 0.0033274 au
q 42.18033728837447 0.00076455 au
i 3.299390706436853 7.8351e-05 deg
node 83.39490883549507 0.0015604 deg
peri 133.6406561418406 0.022675 deg
M 1.463373178719377 0.020866 deg
tp 2458569.962880876693
(2019-Mar-27.46288088)
6.1691 TDB
period 105915.1316549534
289.98
12.067
0.03304
d
yr
n .003398947764827367 3.8723e-07 deg/d
Q 45.43962286574295 0.0034512 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .59821  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:41:44  

Additional Information
 Earth MOID = 41.1742 au 
 Jupiter MOID = 36.7392 au 
 T_jup = 5.908 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457881.5 (2017-May-08.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04155961970271828 5.6534e-05  
q 42.1755568468003 0.00073814 au
tp 2457187.107539494612
(2015-Jun-13.60753949)
4.6618 TDB
node 83.3864773569896 0.0015568 deg
peri 128.5703234625909 0.017197 deg
i 3.299750140554654 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .59821  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 10:41:44  

Additional Information
 Jupiter MOID = 36.7392 au 
 T_jup = 5.908 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.196054031665939E-9 4.155770392318697E-8 -8.662161843119633E-5 8.095158043456365E-10 -3.189504351538264E-7 3.493117658526792E-11
q 4.155770392318697E-8 5.448537488577266E-7 -.001282660432387862 1.092824054485618E-8 -4.721208426194174E-6 4.433542354250262E-10
tp -8.662161843119633E-5 -.001282660432387862 21.7326574770286 -6.445497752800066E-5 .079840144698099 7.399172288124447E-7
node 8.095158043456365E-10 1.092824054485618E-8 -6.445497752800066E-5 2.423616613895958E-6 -2.656226855522062E-6 -1.201867731486026E-7
peri -3.189504351538264E-7 -4.721208426194174E-6 .079840144698099 -2.656226855522062E-6 .0002957275503267328 1.227015220071654E-7
i 3.493117658526792E-11 4.433542354250262E-10 7.399172288124447E-7 -1.201867731486026E-7 1.227015220071654E-7 6.11353857360409E-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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