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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1965459898121708 5.4941e-08  
a 3.15706731451862 3.5064e-08 au
q 2.536558394282906 1.5884e-07 au
i 28.41905167813547 7.7897e-06 deg
node 70.19184919652527 1.102e-05 deg
peri 225.1653713777457 2.2885e-05 deg
M 103.1196483596053 2.2095e-05 deg
tp 2458413.601347449930
(2018-Oct-22.10134745)
0.00012285 TDB
period 2048.916169508495
5.61
3.4134e-05
9.345e-08
d
yr
n .1757026497020416 2.9271e-09 deg/d
Q 3.777576234754334 4.1955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      488  
   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      .61284  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 12:22:47  

Additional Information
 Earth MOID = 1.58015 au 
 Jupiter MOID = 1.52142 au 
 T_jup = 2.992 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457062.5 (2015-Feb-09.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1987383739572227 5.4519e-08  
q 2.527396263820662 1.5778e-07 au
tp 2456367.663638205214
(2013-Mar-16.16363821)
0.00011734 TDB
node 70.2890623823039 1.105e-05 deg
peri 225.3230100897957 2.2761e-05 deg
i 28.40548959527497 7.7858e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      488  
   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      .61284  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 12:22:47  

Additional Information
 Jupiter MOID = 1.52142 au 
 T_jup = 2.992 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.972364257439961E-15 -8.511142408809693E-15 -1.0993058481126E-12 -2.313007202144934E-15 -2.405425218193181E-13 3.591216689291234E-15
q -8.511142408809693E-15 2.489311483113867E-14 3.418723168968438E-12 5.387837774488829E-15 7.679065396170619E-13 -8.12658184353299E-15
tp -1.0993058481126E-12 3.418723168968438E-12 1.376765078704865E-8 -8.878674022463492E-12 2.362211260272156E-9 -5.769940851918248E-12
node -2.313007202144934E-15 5.387837774488829E-15 -8.878674022463492E-12 1.220932297492133E-10 -1.084244662878489E-10 -3.489786712235033E-11
peri -2.405425218193181E-13 7.679065396170619E-13 2.362211260272156E-9 -1.084244662878489E-10 5.180533743161993E-10 2.929778258003731E-11
i 3.591216689291234E-15 -8.12658184353299E-15 -5.769940851918248E-12 -3.489786712235033E-11 2.929778258003731E-11 6.061790529895604E-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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