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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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05663050159577592 8.1528e-08  
a 5.313648101856243 1.5092e-07 AU
q 5.012733544544682 4.2335e-07 AU
i 20.18030154423699 1.1908e-05 deg
node 328.5343765965255 1.817e-05 deg
peri 73.61718497229477 0.00010236 deg
M 139.6777494299096 0.00010091 deg
tp 2455264.649417528531
(2010-Mar-09.14941753)
0.001247 JED
period 4473.913792570857
12.25
0.0001906
5.218e-07
d
yr
n .08046645883025212 3.4281e-09 deg/d
Q 5.614562659167805 1.5946e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      22308 days (61.08 yr)  
   first obs. used      1954-03-28  
   last obs. used      2015-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46342  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:18:03  

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-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:
[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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