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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .178369711245336 4.9241e-08  
a 2.580323322818294 1.265e-08 au
q 2.120071796807589 1.2777e-07 au
i 2.228931125381095 5.208e-06 deg
node 317.1599434354841 0.00013182 deg
peri .5869324657360301 0.00013283 deg
M 333.4177770140437 2.0648e-05 deg
tp 2457512.288831005199
(2016-May-03.78883101)
8.6932e-05 JED
period 1513.943329086254
4.14
1.1133e-05
3.048e-08
d
yr
n .2377896141048286 1.7486e-09 deg/d
Q 3.040574848828999 1.4906e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1614  
   data-arc span      29884 days (81.82 yr)  
   first obs. used      1933-09-25  
   last obs. used      2015-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51886  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:08:36  

Additional Information
 Earth MOID = 1.10479 au 
 Jupiter MOID = 2.24488 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. 2015-December); 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. (2015) 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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