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27605 (2001 HN9)
Classification: Main-belt Asteroid          SPK-ID: 2027605
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08345915732750572 3.8143e-08  
a 2.986865337960909 2.0203e-08 au
q 2.737584073803956 1.1268e-07 au
i 11.88808199768867 4.959e-06 deg
node 68.93714599815655 2.3071e-05 deg
peri 223.591428721152 4.4804e-05 deg
M 193.0460673299127 4.1408e-05 deg
tp 2459874.911869260641
(2022-Oct-22.41186926)
0.00021941 TDB
period 1885.479832067655
5.16
1.913e-05
5.238e-08
d
yr
n .1909328298702706 1.9372e-09 deg/d
Q 3.236146602117862 2.1889e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1344  
   data-arc span      8630 days (23.63 yr)  
   first obs. used      1996-06-13  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:07:04  

Additional Information
 Earth MOID = 1.73478 au 
 Jupiter MOID = 1.90007 au 
 T_jup = 3.220 
[ 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 13.5   n/a MPO412382  
diameter diameter 6.218 km 0.249 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.240   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27605 (2001 HN9)          Discovered 2001-Apr-16 by LINEAR at Socorro
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HN9 = 1998 XG68 = 2000 EG116 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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