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JPL Small-Body Database Browser
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108238 (2001 HP41)
Classification: Main-belt Asteroid          SPK-ID: 2108238
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1551735017751965 5.4926e-08  
a 2.737414534756267 1.7088e-08 au
q 2.312640335587816 1.5313e-07 au
i 25.17311423979438 7.8357e-06 deg
node 217.1354331476925 1.0593e-05 deg
peri 323.8562529167177 2.3503e-05 deg
M 116.1186731739436 1.9913e-05 deg
tp 2458466.908571971162
(2018-Dec-14.40857197)
9.1587e-05 TDB
period 1654.280994088091
4.53
1.549e-05
4.241e-08
d
yr
n .2176172012412239 2.0377e-09 deg/d
Q 3.162188733924717 1.9739e-08 au
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      7087 days (19.40 yr)  
   first obs. used      1999-12-16  
   last obs. used      2019-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58112  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:45:08  

Additional Information
 Earth MOID = 1.34098 au 
 Jupiter MOID = 1.89595 au 
 T_jup = 3.198 
[ show covariance matrix ]

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 14.8   n/a MPO493609  
diameter diameter 3.346 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.250   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108238 (2001 HP41)          Discovered 2001-Apr-30 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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