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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1781362202158376 4.9705e-08  
a 2.580365804392275 1.2823e-08 AU
q 2.120709193223636 1.2871e-07 AU
i 2.229041977904603 5.247e-06 deg
node 317.1640299916347 0.00013185 deg
peri .5704281764398516 0.00013287 deg
M 238.2901269380068 2.0671e-05 deg
tp 2457512.351113506724
(2016-May-03.85111351)
8.7379e-05 JED
period 1513.980716819615
4.15
1.1285e-05
3.09e-08
d
yr
n .2377837418935189 1.7724e-09 deg/d
Q 3.040022415560915 1.5107e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1595  
   data-arc span      29849 days (81.72 yr)  
   first obs. used      1933-09-25  
   last obs. used      2015-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51871  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:45:18  

Additional Information
 Earth MOID = 1.10825 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-July); 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) arXiv:1506.08493.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J., in press.]

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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