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19913 Aigyptios (1973 SU1)
Classification: Jupiter Trojan          SPK-ID: 2019913
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0579448389201033 6.3677e-08  
a 5.127307837705468 1.2072e-07 AU
q 4.830206810955842 3.4595e-07 AU
i 7.122377282558061 7.6702e-06 deg
node 141.5176771501278 5.3035e-05 deg
peri 340.2832042052893 9.6238e-05 deg
M 52.98339637864296 7.5214e-05 deg
tp 2456376.377542955640
(2013-Mar-24.87754296)
0.00089109 JED
period 4240.650843337354
11.61
0.00014977
4.1e-07
d
yr
n .08489262929194219 2.9982e-09 deg/d
Q 5.424408864455095 1.2772e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      1040  
   data-arc span      15210 days (41.64 yr)  
   first obs. used      1973-09-19  
   last obs. used      2015-05-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48257  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:35:31  

Additional Information
 Earth MOID = 3.84701 AU 
 T_jup = 2.982 
[ 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 11.2 mag n/a MPO302187  
rotation period rot_per 40.43 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[French, L.M.; Stephens, R.D.; Coley, D.; Wasserman, L.; Sieben, J. (2015) Icarus 254, 1-17.]

19913 Aigyptios           Discovered 1973 Sept. 19 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Aigyptios was the father of Antiphos, who was a hero in Troy and companion of Odysseus.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1973 SU1 = 1999 WR8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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