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27809 (1993 HS1)
Classification: Main-belt Asteroid          SPK-ID: 2027809
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140109968735318 3.4208e-08  
a 2.246396395772367 8.3393e-09 au
q 1.99028250331725 7.609e-08 au
i 8.220714092103139 4.1873e-06 deg
node 29.56359937204085 2.904e-05 deg
peri 200.6422604189647 3.6375e-05 deg
M 4.109963476831549 2.3847e-05 deg
tp 2458986.460117308641
(2020-May-16.96011731)
8.1439e-05 TDB
period 1229.781675039552
3.37
6.848e-06
1.875e-08
d
yr
n .2927348872623441 1.6301e-09 deg/d
Q 2.502510288227483 9.2901e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1664  
   data-arc span      9812 days (26.86 yr)  
   first obs. used      1993-03-24  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52235  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:11:01  

Additional Information
 Earth MOID = .982827 au 
 Jupiter MOID = 2.48228 au 
 T_jup = 3.608 
[ 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 14.2   n/a MPO365581  
diameter diameter 3.371 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.359   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27809 (1993 HS1)          Discovered 1993-Apr-20 by Endate, K., Watanabe, K. at Kitami
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 HS1 = 1997 QA1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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