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11554 Asios (1993 BZ12)
Classification: Jupiter Trojan          SPK-ID: 2011554
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0643157103393126 3.0031e-08  
a 5.272649006860059 7.4663e-08 au
q 4.933534840613983 1.9552e-07 au
i 13.7095935236831 2.0848e-06 deg
node 128.0784208068702 5.4059e-06 deg
peri 126.6850894062327 1.8823e-05 deg
M 3.793253023641797 1.8384e-05 deg
tp 2459153.903743033815
(2020-Oct-31.40374303)
0.00022615 TDB
period 4422.2340042378
12.11
9.3932e-05
2.572e-07
d
yr
n .08140681828573842 1.7291e-09 deg/d
Q 5.611763173106135 7.9465e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2408  
   data-arc span      10884 days (29.80 yr)  
   first obs. used      1990-12-11  
   last obs. used      2020-09-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43772  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:50:38  

Additional Information
 Earth MOID = 3.93733 au 
 Jupiter MOID = .0100662 au 
 T_jup = 2.939 
[ 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 10.58   n/a E2021B10  
diameter diameter 41.561 km 0.538 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.065   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

11554 Asios           Discovered 1993 Jan. 22 by E. W. Elst at the European Southern Observatory.
Asios was a Trojan warrior and one of the leaders in the assault on the Greek wall. He challenged Idomeneos and was killed by him.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1993 BZ12 = 1994 EL6 = 1998 OD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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