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108281 (2001 HT60)
Classification: Main-belt Asteroid          SPK-ID: 2108281
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1400953045229636 3.5438e-08  
a 2.631507026266748 1.5015e-08 au
q 2.26284524806759 9.1922e-08 au
i 13.78733221535313 4.0309e-06 deg
node 114.4406013321993 2.1466e-05 deg
peri 181.1348326717847 2.8373e-05 deg
M 114.8844017171251 1.958e-05 deg
tp 2458502.918993866170
(2019-Jan-19.41899387)
8.3481e-05 TDB
period 1559.212212718317
4.27
1.3345e-05
3.654e-08
d
yr
n .230885826229118 1.9761e-09 deg/d
Q 3.000168804465907 1.7119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      734  
   data-arc span      6832 days (18.70 yr)  
   first obs. used      2001-04-24  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54327  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 15:40:19  

Additional Information
 Earth MOID = 1.24686 au 
 Jupiter MOID = 2.21045 au 
 T_jup = 3.345 
[ 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 15.3   n/a MPO436520  
diameter diameter 2.045 km 0.424 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.385   0.275 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108281 (2001 HT60)          Discovered 2001-Apr-24 by LONEOS at Anderson Mesa
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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