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187755 (1996 HN17)
Classification: Jupiter Trojan          SPK-ID: 2187755
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09905707004369417 5.8732e-08  
a 5.267786993169467 1.2335e-07 au
q 4.745975448011818 3.7652e-07 au
i 4.62326235103024 5.9636e-06 deg
node 73.77302599935041 7.4068e-05 deg
peri 197.7192523619612 8.1424e-05 deg
M 334.2131198788164 3.5079e-05 deg
tp 2459516.827563228008
(2021-Oct-29.32756323)
0.00043176 TDB
period 4416.118670693062
12.09
0.00015511
4.247e-07
d
yr
n .08151954846437627 2.8633e-09 deg/d
Q 5.789598538327115 1.3557e-07 au
  Orbit Determination Parameters
   # obs. used (total)      369  
   data-arc span      8830 days (24.18 yr)  
   first obs. used      1996-04-18  
   last obs. used      2020-06-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50591  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:42  

Additional Information
 Earth MOID = 3.72834 au 
 Jupiter MOID = .306055 au 
 T_jup = 2.984 
[ 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 13.09   n/a E2021B55  
diameter diameter 12.097 km 1.419 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.069   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

187755 (1996 HN17)          Discovered 1996-Apr-18 by Elst, E. W. at La Silla
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20

Alternate Designations
 1996 HN17 = 2007 EB103 = 2008 FJ68 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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