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4007 Euryalos (1973 SR)
Classification: Jupiter Trojan          SPK-ID: 2004007
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05608022749091077 4.0729e-08  
a 5.178751717822086 8.6808e-08 au
q 4.888326143367679 2.5577e-07 au
i 11.00082048840856 5.857e-06 deg
node 6.751729626361175 2.3743e-05 deg
peri 77.15197544550163 6.5992e-05 deg
M 281.390789192389 6.4835e-05 deg
tp 2459940.454860325228
(2022-Dec-26.95486032)
0.00078634 TDB
period 4304.632322861581
11.79
0.00010823
2.963e-07
d
yr
n .08363083603867091 2.1028e-09 deg/d
Q 5.469177292276494 9.1677e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2152  
   data-arc span      16912 days (46.30 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44386  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 19:21:08  

Additional Information
 Earth MOID = 3.92535 au 
 Jupiter MOID = .166598 au 
 T_jup = 2.960 
[ 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 10.3   n/a MPO412199  
diameter diameter 45.515 km 0.351 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 6.391 h n/a LCDB (Rev. 2019-August); 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:
[Mottola, S.; Di Martino, M.; Erikson, A.; Gonano-Beurer, M.; et al. (2011) Astron. J. 141, A170.]
geometric albedo albedo 0.065   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

4007 Euryalos (1973 SR)          Discovered 1973-Sep-19 by van Houten, C. J. at Palomar
and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1973 SR = 1977 AK2 = 1986 VH5 = 1989 AR1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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