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351440 (2005 HX2)
Classification: Main-belt Asteroid          SPK-ID: 2351440
[ 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .139085661502032 8.5899e-08  
a 2.528548215704791 2.1345e-08 au
q 2.176863414483708 2.2298e-07 au
i 8.07767821400871 8.8165e-06 deg
node 221.9378382117402 3.5616e-05 deg
peri 337.3158069695718 4.106e-05 deg
M 288.1716997286372 1.9762e-05 deg
tp 2459293.520749396461
(2021-Mar-20.02074940)		 8.2084e-05 TDB
period 1468.605958712664
4.02		 1.8596e-05
5.091e-08		 d
yr
n .2451304230820126 3.1039e-09 deg/d
Q 2.880233016925875 2.4314e-08 au
   Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2001-04-24  
   last obs. used      2019-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60113  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:43:45  

Additional Information
 Earth MOID = 1.17621 au 
 Jupiter MOID = 2.09484 au 
 T_jup = 3.425 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457208.5 (2015-Jul-05.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1395622897056986 8.5916e-08  
q 2.174975684785565 2.23e-07 au
tp 2457826.202060740305
(2017-Mar-13.70206074)		 7.5716e-05 TDB
node 221.9564046691487 3.5634e-05 deg
peri 337.5615054104658 4.1009e-05 deg
i 8.076224892706525 8.8168e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      156  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2001-04-24  
   last obs. used      2019-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60113  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 16:43:45  

Additional Information
 Jupiter MOID = 2.09484 au 
 T_jup = 3.425 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.381510901148175E-15 -1.90995208873869E-14 1.385482287077403E-12 -7.903047892556282E-14 3.992403835785457E-13 1.573523787104294E-14
q -1.90995208873869E-14 4.972916583814962E-14 -3.224095761885376E-12 2.035820762054545E-13 -9.742743106920525E-13 -3.988251008084175E-14
tp 1.385482287077403E-12 -3.224095761885376E-12 5.732879885819964E-9 -3.748309533770612E-11 1.544396270644562E-9 1.243063596750365E-12
node -7.903047892556282E-14 2.035820762054545E-13 -3.748309533770612E-11 1.26976192606187E-9 -1.265918221923489E-9 -7.624018891004681E-11
peri 3.992403835785457E-13 -9.742743106920525E-13 1.544396270644562E-9 -1.265918221923489E-9 1.681722742003152E-9 7.565325434417059E-11
i 1.573523787104294E-14 -3.988251008084175E-14 1.243063596750365E-12 -7.624018891004681E-11 7.565325434417059E-11 7.773633673521523E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO455543  

351440 (2005 HX2)          Discovered 2005-Apr-17 by Spacewatch at Kitt Peak
Reference: 20130127/Numbers.arcLast Updated: 2013-01-31
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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