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108228 (2001 HN37)
Classification: Main-belt Asteroid          SPK-ID: 2108228
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1274360579580743 4.9784e-08  
a 2.591491530342444 1.7096e-08 au
q 2.261242065483866 1.2912e-07 au
i 11.70929612418012 5.6798e-06 deg
node 243.6831736255065 2.3367e-05 deg
peri 1.009974731455354 3.3275e-05 deg
M 192.0339242571347 2.8983e-05 deg
tp 2459711.455130414493
(2022-May-11.95513041)
0.0001272 TDB
period 1523.78297711161
4.17
1.5078e-05
4.128e-08
d
yr
n .2362541158468603 2.3378e-09 deg/d
Q 2.921740995201022 1.9274e-08 au
  Orbit Determination Parameters
   # obs. used (total)      688  
   data-arc span      6853 days (18.76 yr)  
   first obs. used      2001-04-21  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52115  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:04:38  

Additional Information
 Earth MOID = 1.24807 au 
 Jupiter MOID = 2.10591 au 
 T_jup = 3.379 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO257510  
diameter diameter 4.597 km 0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 17.7379 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.063   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

108228 (2001 HN37)          Discovered 2001-Apr-29 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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