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911 Agamemnon (1919 FD)
Classification: Jupiter Trojan          SPK-ID: 2000911
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 67 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06655487655049137 5.5838e-08  
a 5.271467843800279 7.8906e-08 AU
q 4.920625952216266 3.0057e-07 AU
i 21.76473644861477 8.2176e-06 deg
node 338.0316274785758 1.4818e-05 deg
peri 81.72422801342894 6.0897e-05 deg
M 137.3941543025275 5.7785e-05 deg
tp 2455313.319591291593
(2010-Apr-26.81959129)
0.00071164 JED
period 4420.748104010515
12.10
9.9257e-05
2.718e-07
d
yr
n .08143418071556871 1.8284e-09 deg/d
Q 5.622309735384291 8.4157e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1095  
   data-arc span      34726 days (95.07 yr)  
   first obs. used      1919-05-20  
   last obs. used      2014-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55616  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 13:53:58  

Additional Information
 Earth MOID = 4.01336 AU 
 T_jup = 2.852 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.89 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
diameter diameter 166.66 km 3.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
rotation period rot_per 6.592 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Stephens, R.D. (2009) Minor Planet Bul. 36, 59-62.]
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
[French, L.M.; Stephens, R.D.; Coley, D.R.; Megna, R.; Wasserman, L.H. (2012) Minor Planet Bul. 39, 183-187.]
geometric albedo albedo 0.0444   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 18
B-V BV .760 mag .014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=1.96, mean=5.16, max.=8.36) deg.
U-B UB .215 mag .021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=1.96, mean=5.16, max.=8.36) deg.
Tholen spectral type spec_T D   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

911 Agamemnon (1919 FD)          Discovered 1919-Mar-19 by Reinmuth, K. at Heidelberg (024)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1919 FD = 1937 QD 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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