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10332 Defi (1991 JT1)
Classification: Main-belt Asteroid          SPK-ID: 2010332
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1506262028040956 2.9007e-08  
a 2.55669329212922 8.574e-09 au
q 2.171588289801093 7.3992e-08 au
i 15.6965793501759 4.0996e-06 deg
node 179.9126203876174 1.2445e-05 deg
peri 84.6742995544664 1.9565e-05 deg
M 61.55531110757139 1.4639e-05 deg
tp 2458945.183192855837
6.0655e-05 TDB
period 1493.194476935932
n .2410938464885887 1.2128e-09 deg/d
Q 2.941798294457346 9.8655e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2441  
   data-arc span      25836 days (70.74 yr)  
   first obs. used      1950-04-20  
   last obs. used      2021-01-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41412  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:00:56  

Additional Information
 Earth MOID = 1.22266 au 
 Jupiter MOID = 2.25277 au 
 T_jup = 3.369 
[ 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 13.21   n/a E2021B10  
diameter diameter 7.014 km 0.328 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 20.5142 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.248   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

10332 Défi           Discovered 1991 May 13 by C. S. Shoemaker and D. H. Levy at Palomar.
Défi Corporatif Canderel is a fundraising event for cancer research programs at universities in Montreal. Founded by Jonathan Wener, the event has been directed by Gerald Levy since its inception in 1990. It features a costumed run through the streets of Montreal and has raised more than three million dollars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

Alternate Designations
 1991 JT1 = 1950 HP1 = 1995 JZ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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