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357032 (2000 HT18)
Classification: Main-belt Asteroid          SPK-ID: 2357032
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03793821383341914 1.2037e-07  
a 2.732791430310238 3.8731e-08 au
q 2.629114204664993 3.2957e-07 au
i 3.654389263350424 8.823e-06 deg
node 75.60601072392569 0.00015259 deg
peri 68.83499451897767 0.00020091 deg
M 223.2491841629799 0.0001336 deg
tp 2459627.309518286493
(2022-Feb-16.80951829)
0.00061937 TDB
period 1650.091995444248
4.52
3.508e-05
9.604e-08
d
yr
n .2181696541731775 4.6381e-09 deg/d
Q 2.836468655955483 4.0201e-08 au
  Orbit Determination Parameters
   # obs. used (total)      87  
   data-arc span      7012 days (19.20 yr)  
   first obs. used      2000-04-25  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54385  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:42:26  

Additional Information
 Earth MOID = 1.6439 au 
 Jupiter MOID = 2.14936 au 
 T_jup = 3.349 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457227.5 (2015-Jul-24.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03571226334618609 1.2027e-07  
q 2.63694232329998 3.2858e-07 au
tp 2457972.406667031750
(2017-Aug-06.90666703)
0.00064006 TDB
node 75.63079258684225 0.00015264 deg
peri 67.97171923943237 0.00020633 deg
i 3.654097742364074 8.8158e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      87  
   data-arc span      7012 days (19.20 yr)  
   first obs. used      2000-04-25  
   last obs. used      2019-07-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54385  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:42:26  

Additional Information
 Jupiter MOID = 2.14936 au 
 T_jup = 3.349 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.446380257553871E-14 -3.925869993993421E-14 3.138171475782918E-12 -1.046811783111688E-13 3.520195102761795E-14 -1.37148208120493E-14
q -3.925869993993421E-14 1.079635985372518E-13 3.162041167586361E-12 2.781864001146623E-13 2.329852276335975E-12 3.665256123158296E-14
tp 3.138171475782918E-12 3.162041167586361E-12 4.096757458855416E-7 -3.080542446296328E-10 8.888261055410453E-8 -4.239902412636567E-11
node -1.046811783111688E-13 2.781864001146623E-13 -3.080542446296328E-10 2.329912365137037E-8 -2.331360498302268E-8 8.364138019555115E-11
peri 3.520195102761795E-14 2.329852276335975E-12 8.888261055410453E-8 -2.331360498302268E-8 4.257202289048979E-8 -9.195908121129622E-11
i -1.37148208120493E-14 3.665256123158296E-14 -4.239902412636567E-11 8.364138019555115E-11 -9.195908121129622E-11 7.77184782113454E-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 16.9   n/a MPO440599  

357032 (2000 HT18)          Discovered 2000-Apr-25 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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