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3280 Gretry (1933 SJ)
Classification: Main-belt Asteroid          SPK-ID: 2003280
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1784876099340674 4.8586e-08  
a 2.580697000507473 1.2622e-08 au
q 2.120074560922878 1.2623e-07 au
i 2.228738138188818 5.1704e-06 deg
node 317.1598976183159 0.00013154 deg
peri .5685732265861759 0.00013256 deg
M 20.98400525724652 2.0545e-05 deg
tp 2457512.234733247306
(2016-May-03.73473325)
8.6337e-05 JED
period 1514.272210735201
4.15
1.111e-05
3.042e-08
d
yr
n .2377379690704453 1.7442e-09 deg/d
Q 3.041319440092069 1.4875e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1616  
   data-arc span      30147 days (82.54 yr)  
   first obs. used      1933-09-25  
   last obs. used      2016-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5202  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:43:16  

Additional Information
 Earth MOID = 1.10621 au 
 Jupiter MOID = 2.24528 au 
 T_jup = 3.401 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4 mag n/a MPO296159  
rotation period rot_per 10.56 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Galad, A.; Kornos, L.; Vilagi, J. (2010) Minor Planet Bul. 37, 9-15.]
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) Astrophys. J. Supp. Ser. 219, A27.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2016) Astron. J. 150, A75.]

3280 Gretry (1933 SJ)          Discovered 1933-Sep-17 by Rigaux, F. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1933 SJ = 1954 UL2 = 1954 WB = 1958 TN1 = 1975 XF3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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