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175471 (2006 QA138)
Classification: Jupiter Trojan          SPK-ID: 2175471
[ 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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03779274706406974 6.5596e-08  
a 5.20474235053573 1.2394e-07 au
q 5.008040839348281 3.6379e-07 au
i 4.405903824734449 7.1962e-06 deg
node 171.4541304924469 6.736e-05 deg
peri 199.8494331818528 0.00010646 deg
M 30.80363486504843 7.8072e-05 deg
tp 2458829.395050852806
(2019-Dec-11.89505085)		 0.00094756 TDB
period 4337.0784739621
11.87		 0.00015492
4.241e-07		 d
yr
n .0830051847485077 2.9649e-09 deg/d
Q 5.401443861723179 1.2862e-07 au
   Orbit Determination Parameters
   # obs. used (total)      350  
   data-arc span      8405 days (23.01 yr)  
   first obs. used      1997-12-04  
   last obs. used      2020-12-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50441  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:05:32  

Additional Information
 Earth MOID = 4.0063 au 
 Jupiter MOID = .0539472 au 
 T_jup = 2.993 
[ 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 MPO417949  
diameter diameter 12.638 km 0.911 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.070   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

175471 (2006 QA138)          Discovered 2006-Aug-16 by NEAT at Palomar
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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