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JPL Small-Body Database Browser
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295336 (2008 HY8)
Classification: Jupiter Trojan          SPK-ID: 2295336
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004010336904852134 6.0293e-08  
a 5.184502941037698 1.746e-07 au
q 5.16371133755994 4.2742e-07 au
i 18.09473636203967 7.1581e-06 deg
node 174.6762343587335 1.8469e-05 deg
peri 125.5344334560562 0.001059 deg
M 256.8234306622002 0.0010637 deg
tp 2459836.270140182065
(2022-Sep-13.77014018)
0.012767 TDB
period 4311.805028223187
11.81
0.00021782
5.964e-07
d
yr
n .08349171579967038 4.2177e-09 deg/d
Q 5.205294544515455 1.753e-07 au
  Orbit Determination Parameters
   # obs. used (total)      252  
   data-arc span      6438 days (17.63 yr)  
   first obs. used      2001-10-11  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55882  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:42:56  

Additional Information
 Earth MOID = 4.16323 au 
 Jupiter MOID = .210128 au 
 T_jup = 2.901 
[ 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 13.0   n/a MPO437320  
diameter diameter 13.002 km 0.958 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.060   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

295336 (2008 HY8)          Discovered 2008-Apr-24 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 HY8 = 2007 EC70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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