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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1733769242797519 1.9228e-08  
a 2.242080422373974 5.6837e-09 au
q 1.853355414754927 4.3219e-08 au
i 6.694757722872232 1.1296e-06 deg
node 108.0917242991155 5.9925e-06 deg
peri 180.843099887345 7.6661e-06 deg
M 200.1756763876099 4.3253e-06 deg
tp 2459940.896821607498
(2022-Dec-27.39682161)
1.5651e-05 TDB
period 1226.239231607835
3.36
4.6628e-06
1.277e-08
d
yr
n .2935805597476855 1.1163e-09 deg/d
Q 2.63080542999302 6.6691e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2713  
   data-arc span      22484 days (61.56 yr)  
   first obs. used      1959-10-06  
   last obs. used      2021-04-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43202  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 13:46:53  

Additional Information
 Earth MOID = .836684 au 
 Jupiter MOID = 2.53333 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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