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2784 Domeyko (1975 GA)
Classification: Main-belt Asteroid          SPK-ID: 2002784
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1734922586308071 1.9234e-08  
a 2.241833048181365 5.6724e-09 au
q 1.852892369179193 4.3223e-08 au
i 6.695040037150414 1.1296e-06 deg
node 108.0916784316414 5.993e-06 deg
peri 180.81276623509 7.6701e-06 deg
M 142.6697073383306 4.2457e-06 deg
tp 2458714.616001182469
(2019-Aug-19.11600118)
1.3934e-05 TDB
period 1226.036296265089
3.36
4.6533e-06
1.274e-08
d
yr
n .293629153636543 1.1144e-09 deg/d
Q 2.630773727183537 6.6565e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2693  
   data-arc span      22450 days (61.46 yr)  
   first obs. used      1959-10-06  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42779  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 20:30:57  

Additional Information
 Earth MOID = .834614 au 
 Jupiter MOID = 2.53437 au 
 T_jup = 3.605 
[ 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 12.88   n/a E2021B10  
rotation period rot_per 6.025 h n/a LCDB (Rev. 2020-October); 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:
[Almeida, R.; Angeli, C.A.; Duffard, R.; Lazzaro, D. (2004) Astron. Astrophys. 415, 403-406.]
[Polakis, T. (2019) Minor Planet Bull. 46, 400-406.]

2784 Domeyko (1975 GA)          Discovered 1975-Apr-15 by Torres, C. at Cerro El Roble
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1975 GA = 1959 TS = 1972 KD = 1972 LK = 1979 ST1 = 1982 JB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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