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JPL Small-Body Database Browser
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160146 (2001 HU22)
Classification: Main-belt Asteroid          SPK-ID: 2160146
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1965280063528027 5.4976e-08  
a 3.155816014609417 3.5128e-08 au
q 2.535609784841982 1.5894e-07 au
i 28.42102051481847 7.7986e-06 deg
node 70.18872528742844 1.1023e-05 deg
peri 225.0508003370782 2.2905e-05 deg
M 32.93073476079316 2.1781e-05 deg
tp 2458413.188319329249
(2018-Oct-21.68831933)
0.00012302 TDB
period 2047.698161953985
5.61
3.419e-05
9.361e-08
d
yr
n .1758071607860777 2.9354e-09 deg/d
Q 3.776022244376854 4.2032e-08 au
  Orbit Determination Parameters
   # obs. used (total)      484  
   data-arc span      6788 days (18.58 yr)  
   first obs. used      2001-04-24  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61282  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 13:49:47  

Additional Information
 Earth MOID = 1.57847 au 
 Jupiter MOID = 1.52094 au 
 T_jup = 2.992 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457058.5 (2015-Feb-05.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1987417213702911 5.453e-08  
q 2.5273843258991 1.5784e-07 au
tp 2456367.668836293032
(2013-Mar-16.16883629)
0.00011745 TDB
node 70.28906664269979 1.1052e-05 deg
peri 225.323388836078 2.2775e-05 deg
i 28.40551831597834 7.7937e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      484  
   data-arc span      6788 days (18.58 yr)  
   first obs. used      2001-04-24  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61282  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 13:49:47  

Additional Information
 Jupiter MOID = 1.52094 au 
 T_jup = 2.992 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.973502352565321E-15 -8.515851710369503E-15 -1.10471713155164E-12 -2.29909407497471E-15 -2.413790931221983E-13 3.605854248893111E-15
q -8.515851710369503E-15 2.491265613040396E-14 3.441142116440551E-12 5.32580933747031E-15 7.71366237240193E-13 -8.167936710573998E-15
tp -1.10471713155164E-12 3.441142116440551E-12 1.379423593568448E-8 -8.864801894988892E-12 2.366246703680976E-9 -5.777225234299915E-12
node -2.29909407497471E-15 5.32580933747031E-15 -8.864801894988892E-12 1.221432209389072E-10 -1.084674764218365E-10 -3.4819057058806E-11
peri -2.413790931221983E-13 7.71366237240193E-13 2.366246703680976E-9 -1.084674764218365E-10 5.187045235541684E-10 2.922874660470301E-11
i 3.605854248893111E-15 -8.167936710573998E-15 -5.777225234299915E-12 -3.4819057058806E-11 2.922874660470301E-11 6.074130372810507E-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 14.4   n/a MPO449861  
diameter diameter 8.053 km 0.483 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160146 (2001 HU22)          Discovered 2001-Apr-26 by Yeung, W. K. Y. at Desert Beaver
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06

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