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11727 Sweet (1998 JM1)
Classification: Main-belt Asteroid          SPK-ID: 2011727
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04925319161468921 3.4433e-08  
a 2.382055359697065 8.4094e-09 au
q 2.264731530629108 8.3182e-08 au
i 1.818250526914284 3.9254e-06 deg
node 319.2725736319323 0.00010175 deg
peri 56.84529128133065 0.00010782 deg
M 105.1147253098909 3.6103e-05 deg
tp 2458208.408649929974
(2018-Mar-30.90864993)
0.0001342 TDB
period 1342.845977184202
3.68
7.111e-06
1.947e-08
d
yr
n .2680873354923993 1.4196e-09 deg/d
Q 2.499379188765022 8.8236e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2005  
   data-arc span      11167 days (30.57 yr)  
   first obs. used      1988-10-03  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48286  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 19:13:46  

Additional Information
 Earth MOID = 1.26484 au 
 Jupiter MOID = 2.69552 au 
 T_jup = 3.535 
[ 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 14.1   n/a MPO365391  
diameter diameter 4.345 km 0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.761 h n/a LCDB (Rev. 2019-January); 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.283   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11727 Sweet           Discovered 1998 May 1 by the Near-Earth Asteroid Tracking Team (NEAT) at Haleakala.
During the 1.2-m Schmidt conversion Merle Sweet (b. 1942), assistant superintendent at the Palomar Observatory, assisted in overseeing the details in the layout and construction of the slip-ring trolleys. He also worked in the rewiring of the dome. The name was suggested by R. Thicksten.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1998 JM1 = 1988 TT3 = 1990 DL4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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