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JPL Small-Body Database Browser
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11555 (1993 CR1)
Classification: Main-belt Asteroid          SPK-ID: 2011555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1025218435535632 4.7391e-08  
a 2.670860845748354 1.2052e-08 au
q 2.397039267967203 1.2972e-07 au
i 13.66717999892241 5.2305e-06 deg
node 149.0986054192563 1.601e-05 deg
peri 24.41543653649756 2.553e-05 deg
M 344.1861183326349 1.9583e-05 deg
tp 2458670.534382379607
(2019-Jul-06.03438238)
8.6836e-05 TDB
period 1594.319357320658
4.37
1.0791e-05
2.954e-08
d
yr
n .2258016866865368 1.5283e-09 deg/d
Q 2.944682423529504 1.3287e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1667  
   data-arc span      9580 days (26.23 yr)  
   first obs. used      1993-02-15  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47731  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:56:18  

Additional Information
 Earth MOID = 1.41057 au 
 Jupiter MOID = 2.04475 au 
 T_jup = 3.333 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4   n/a MPO389699  
diameter diameter 5.201 km 0.381 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.313259 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.285   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11555 (1993 CR1)          Discovered 1993-Feb-15 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 CR1 = 1997 AP6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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