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6090 (1989 DJ)
Classification: Jupiter Trojan          SPK-ID: 2006090
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 .05663051340317693 8.2207e-08  
a 5.313648125184709 1.523e-07 AU
q 5.01273350381167 4.2494e-07 AU
i 20.18030381625619 1.2269e-05 deg
node 328.5343751929551 1.8264e-05 deg
peri 73.6171586039422 0.00010547 deg
M 139.6777748249814 0.00010354 deg
tp 2455264.649090498965
(2010-Mar-09.14909050)
0.0012821 JED
period 4473.913822033539
12.25
0.00019234
5.266e-07
d
yr
n .08046645830034525 3.4594e-09 deg/d
Q 5.614562746557748 1.6092e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      902  
   data-arc span      22279 days (61.00 yr)  
   first obs. used      1954-03-28  
   last obs. used      2015-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46825  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:24:04  

Additional Information
 Earth MOID = 4.08039 AU 
 T_jup = 2.873 
[ 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 9.40 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
diameter diameter 74.53 km 6.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
rotation period rot_per 18.476 h n/a LCDB (Rev. 2015-Feb); 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 0.0553   0.011 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9

6090 (1989 DJ)          Discovered 1989-Feb-27 by Debehogne, H. at La Silla
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 DJ = 1977 EH2 = 1983 OH = 1990 FO1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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