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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04890463533912463 2.1081e-08  
a 2.383119995374823 7.0976e-09 au
q 2.266574381031641 5.0577e-08 au
i 1.817943395630152 9.1651e-07 deg
node 319.2736141785251 3.1147e-05 deg
peri 55.69744600738255 3.9235e-05 deg
M 319.6205997345755 1.4821e-05 deg
tp 2459547.221308657817
(2021-Nov-28.72130866)
5.5634e-05 TDB
period 1343.746335016142
3.68
6.0031e-06
1.644e-08
d
yr
n .2679077074436638 1.1969e-09 deg/d
Q 2.499665609718006 7.4447e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2474  
   data-arc span      11955 days (32.73 yr)  
   first obs. used      1988-10-03  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46071  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:47:00  

Additional Information
 Earth MOID = 1.26635 au 
 Jupiter MOID = 2.69069 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 14.11   n/a E2021B10  
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. 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:
[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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