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108203 (2001 HT22)
Classification: Main-belt Asteroid          SPK-ID: 2108203
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2238571886364925 3.8049e-08  
a 2.554406046346894 1.3274e-08 au
q 1.982583890175621 9.5223e-08 au
i 14.09795931565324 3.9e-06 deg
node 82.50566954042807 1.8621e-05 deg
peri 233.4634546846815 2.1966e-05 deg
M 183.7026887372643 1.309e-05 deg
tp 2459730.758322605477
(2022-May-31.25832261)
5.5995e-05 TDB
period 1491.191182979432
4.08
1.1624e-05
3.182e-08
d
yr
n .2414177364439027 1.8819e-09 deg/d
Q 3.126228202518168 1.6246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1334  
   data-arc span      6909 days (18.92 yr)  
   first obs. used      2001-03-04  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51383  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:04:19  

Additional Information
 Earth MOID = 1.00195 au 
 Jupiter MOID = 2.22557 au 
 T_jup = 3.362 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457067.5 (2015-Feb-14.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2253895792550497 3.8229e-08  
q 1.977416422134908 9.58e-08 au
tp 2456747.801272593845
(2014-Mar-31.30127259)
5.178e-05 TDB
node 82.63727316876363 1.8633e-05 deg
peri 233.1540368280993 2.1915e-05 deg
i 14.09922104567434 3.8981e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1334  
   data-arc span      6909 days (18.92 yr)  
   first obs. used      2001-03-04  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51383  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:04:19  

Additional Information
 Jupiter MOID = 2.22557 au 
 T_jup = 3.362 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.461463248834666E-15 -3.642723524714762E-15 9.606105007733835E-13 -1.15544318437591E-14 1.996304556223381E-13 -3.372799683055352E-15
q -3.642723524714762E-15 9.177548601959495E-15 -2.485908731464956E-12 2.938187473958381E-14 -5.139510464033182E-13 8.984431914341454E-15
tp 9.606105007733835E-13 -2.485908731464956E-12 2.681179406703516E-9 -1.089906284536494E-11 6.238735924365557E-10 -8.581270818388661E-12
node -1.15544318437591E-14 2.938187473958381E-14 -1.089906284536494E-11 3.471822792356572E-10 -3.386344707442254E-10 -2.147025950778558E-11
peri 1.996304556223381E-13 -5.139510464033182E-13 6.238735924365557E-10 -3.386344707442254E-10 4.802696422336512E-10 1.892113087635792E-11
i -3.372799683055352E-15 8.984431914341454E-15 -8.581270818388661E-12 -2.147025950778558E-11 1.892113087635792E-11 1.519517953014557E-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 14.5   n/a MPO453539  
diameter diameter 3.580 km 0.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.263   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

108203 (2001 HT22)          Discovered 2001-Apr-26 by Yeung, W. K. Y. at Desert Beaver
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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